Highlights on the Fourth Week of October, 2018. Mining and Exploration News in Mexico

Stibiconite-Cervantite crystals

By Miguel A Heredia

During the 43th week of the year (October 22th to October 28th, 2018), at least 29 press releases were announced by companies working in Mexico, with seven communicating mining activities, seven reporting on resources and developments, five disclosing deals and corporate issues,  five announcing financing issues, and four informing on exploration results. ON MEXICO ISSUES, the 13th International Mining Congress Sonora 2018 was held in the city of Hermosillo, Sonora on October 23-26. ON EXPLORATION, In Sonora, Minera Alamos and Minaurum reported exploration results from theirs Santana and Alamos Silver projects respectively. In Chihuahua, Harvest Gold provided an update of the drilling program on its Cerro Cascaron project. In Zacatecas, Santacruz provided drill results from its Veta Grande project. ON MINING, Agnico, Excellon, Fresnillo, GoGold, Goldcorp, Hecla and New Gold reported Q3 2018 results from their Mexican operations. ON FINANCING, Consolidated Zinc raised $1.3M from its share purchase plan, and proposed to raise further $220K. Auxico announced that its common shares are already trading on the NEX Exchange Growth Market. Mexican Gold announced its intention to complete a non-brokered private placement of up to $3M.  Oroco Resource increased its previous private placement to rise now up to $750K. Gold Resource declared monthly dividend to shareholders. ON RESOURCES AND DEVELOPMENT, Almaden reported infill drilling results within the PFS pit from its Ixtaca project in Puebla. Goldcorp announced proven and probable mineral reserves for its Peñasquito mine in Zacatecas. Mexican Gold announced plans to update resources for its Las Minas project in Veracruz. Premier Gold commenced an underground drilling program at its Marianas/Mercedes mine in Sonora.  Pan American Silver discovered wide mineralized zones at its La Colorada mine in Zacatecas. Torex reported infill drilling results for its Media Luna project in Guerrero. Azure released drill results from its Oposura project in Sonora. ON DEALS AND CORPORATE ISSUES, Canasil signed a letter of intent providing for Pan American Silver to acquire Canasil´s interest in the Sandra-Escobar project in Durango. Prize Mining retained Link Media to provide communications and market awareness services (Manto Negro, Coahuila). Metalla provided an update on the royalty acquisition of the Santa Gertrudis project in Sonora from GoGold. New Gold announced management changes (Cerro San Pedro, San Luis Potosi). Odyssey provided an update on legal filing for its Don Diego phosphate project in Baja California Sur.

ON MEXICO ISSUES

  • The 13th International Mining Congress Sonora 2018, was held in Hermosillo, Sonora on October 23-26. Sonora is the top state for mining in all Mexico.

 ON EXPLORATION

  • Minera Alamos Inc., reported drill results of a new broad zone of Au-Ag mineralization from its Santana project in Sonora. Hole S18-121 intersected 95.7m of 0.85 g/t Au, 10 g/t Ag, and 0.33% Cu (1.47 g/t Au Eq), including 70m of 1.1 g/t Au, 12 g/t Ag, and 0.56% Cu (1.88 g/t Au Eq). “The hole is the first drilled deep enough to intersect this new style of polymetallic mineralization that is associated with an andesite porphyry unit related to disseminated pyrite and intrusive breccias. Based on surface exposures and known geology the mineralized system appears to be open to expansion in all directions”.
  • Minaurum Gold Inc., released sampling results from the newly discovered Europa Sur Vein extension at its Alamo Silver project in Sonora. Significant results are 0.33 g/t Au, 1,205 g/t Ag, 1.9% Pb, 1.4% Zn, and 3.2 % Cu; 0.8m of 479 g/t Ag, 0.3% Pb, 0.5% Zn, and 3.19% Cu, and 2m of 0.15 g/t Au, 179 g/t Ag, 1.9% Pb, 1.3% Zn, and 2.51% Cu. “With this newly discovered extension, the Europa-Guadalupe vein now measures 2.5 km in strike length and further expands the scope of Minaurum’s exploration program to find extensions of all other currently identified veins”.
  • Harvest Gold Corporation, provided an update of the ongoing drilling program on its Cerro Cascaron Au-Ag project in Chihuahua. At Cascarita Silver target the drilling program is ongoing and currently focused on completing 600m in three holes. Once this target is drill tested, the crew will move to the Cascaron Vein Gold Field to drill three holes to test 900m of strike along the Serpiente Dorada and Julieta structures, and one hole to test beneath a high-grade Au-Ag surface samples across the Carabina vein.
  • Santacruz Silver Mining Ltd., announced drilling results from its Veta Grande project in Zacatecas and expanded the high-grade footprint. Highlights results are in Hole NA 18-006 with 2.15m (TW 1.95m) of 0.17 g/t Au, 669 g/t Ag, and 0.12% Cu, including 0.9m (TW 0.82m) of 29 g/t Au, 1,220 g/t Ag, and 0.12% Cu;

ON MINING

  • Agnico Eagle Mines Ltd., released Q3 2018 production results from its Mexican Operations. At Pinos Altos, Chihuahua, Agnico processed 508,000 tonnes of 2.96 g/t Au to produce 46.4K Oz Au. At Creston Mascota, Chihuahua, the company processed 309,000 tonnes of 0.84 g/t Au to produce 8K Oz Au. At La India, Sonora, Agnico processed 1,426,000 tonnes of 0.79 g/t Au to produce 27K Oz Au.
  • Excellon Resources Inc., reported Q3 2018 production results from its La Platosa mine in Durango. In this period, Excellon milled 17,907 tonnes of 416 g/t Ag, 3.5% Pb, and 4.3% Zn to produce 171.2K Oz Ag, 0.8M Lb Pb, and 1M Lb Zn with metallurgical recoveries of 89.9%, 74.2%, and 78.2% respectively.
  • Fresnillo plc., announced Q3 2018 production results from their Mexican operations. At Fresnillo mine, Zacatecas, the company processed 613,794 tonnes of 0.68% Au, 211 g/t Ag, 0.9% Pb, and 1.8% Zn to produce 10.5K Oz Au, 3.7M Oz Ag, 11M Lb Pb, and 18.1M Lb Zn. At Saucito mine, Zacatecas, 713,441 tonnes were processed at grades of 1.34 g/t Au, 250 g/t Ag, 0.9% Pb, and 1.6% Zn to produce 23.6K Oz Au, 4.9M Oz Ag, 12.9M Lb Pb, and 17.7M Lb Zn. At the Pyrites Plant, Fresnillo processed 63,336 tonnes of 2.9g /t Au and 423 g/t Ag to produce 1.4K Oz Au and 423K Oz Ag. At La Cienega mine, Durango, the company processed 332,493 tonnes of 1.79 g/t Au, 169 g/t Ag, 0.6% Pb, and 0.9% Zn to produce 18.2K Oz Au, 1.54M Oz Ag, 2.47M Lb Pb, and 4.2M Lb Zn. At San Julian mine, Chihuahua, 332,836 tonnes were processed from the vein system with grades of 1.84 g/t Au and 137 g/t Ag to produce 18.5K Oz Au and 1.35M Oz Ag while 561,808 tonnes were processed from San Julian JM disseminated ore body with grades of 0.11 g/t Au, 156 g/t Ag, 0.4% Pb, and 1.3% Zn to produce 9994 Oz Au, 2.3M Oz Ag, 2.8M Lb Pb, and 11.3M Lb Zn. At Herradura mine, Sonora, 5,859,579 tonnes were processed with grades of 0.76 g/t Au and 3 g/t Ag to produce 109.6 Oz Au and 492K Oz Ag. At Noche Buena mine, Sonora, Fresnillo processed 4,834,512 tonnes of 0.52 g/t Au to produce 42.5K Oz Au.
  • GoGold Resources Inc., presented Q3 2018 production results from its Parral tailings operation in Chihuahua. GoGold produced 105.6K Oz Ag and 1,665 Oz Au.
  • Goldcorp Inc., produced a total of 503K Oz Au during Q3 2018 from their mine operations. Goldcorp did not present separate production results by mines.
  • Hecla Mining Company, produced in Q3 2018 over 3.7K Oz Au and 0.5M Oz Ag from its San Sebastian mine in Durango.
  • New Gold Inc., reported Q3 2018 production results from its Cerro San Pedro operation in San Luis Potosi. New Gold produced 2K Oz Au and 0.1M Oz Ag from residual leaching.

ON FINANCING

  •  Consolidated Zinc Limited, closed its share purchase plan on October 22, 2018, raising a total of $1.3M. The company also proposed to conduct a placement to raise a further $220K (Plomosas mine, Chihuahua).
  • Auxico Resources Canada Inc., announced that its common shares are already trading on the NEX Exchange Growth Market in London. (Zamora Mining District, Sinaloa).
  • Mexican Gold Corp., notified its intention to complete a non-brokered private placement of up to $3M, the same that could be increased by up to 25% for aggregate gross proceeds of up to $3.75M. (Las Minas, Veracruz).
  • Oroco Resource Corp., announced that it has increased its previous private placement to raise net gross proceeds of up to $750K (Santo Tomas, Sinaloa).
  • Gold Resource Corporation, declared monthly dividend of 1/6 of a cent for common share to shareholders (El Aguila mine, Oaxaca).

 

ON RESOURCES AND DEVELOPMENT

  • Almaden Minerals Ltd., reported infill drilling results from its Ixtaca project in Puebla. The results are part of the PFS filed work program within the resource and mine plan area. Significant intersections are in Hole TU-18-543 with 127.40m of 1.15 g/t Au and 18 g/t Ag, including 34.50m of 2.08 g/t Au and 47 g/t Ag; Hole TU-18-544 with 145.50m of 1.83 g/t Au and 14 g/t Ag, including 40m of 4 g/t Au and 35 g/t Ag, including 5.10m of 11.6 g/t Au and 87 g/t Ag; Hole TU-18-548 with 139.08m of 1.58 g/t Au and 17 g/t Ag, including 60.58m of 2.75 g/t Au and 23 g/t Ag, including 28.50m of 4.33 g/t Au and 34 g/t Ag; and Hole TU-18-550 with 131.50m of 1.51 g/t Au and 49 g/t Ag, including 21m of 7.5 g/t Au and 57 g/t Ag, including 9.70m of 15.18 g/t Au and 104 g/t Ag, and including 11.50m of 1.07 g/t Au and 89 g/t Ag.
  • Goldcorp Inc., presented reserves and resource estimates as of June 30, 2018 for its Peñasquito mine in Zacatecas. Proven reserves are 376.43 M tonnes of 0.58 g/t Au, 35 g/t Ag, 0.3% Pb, and 0.8% Zn for a total of 6.97M Oz Au, 418.3M Oz Ag, 2,804M Lb Pb, and 6,314M Lb Zn. Probable reserves are 143.99M tonnes of 0.46 g/t Au, 24 g/t Ag, 0.3% Pb, and 0.5% Zn for a total of 2.15M Oz Au, 109.3M Oz Ag, 809.6M Lb Pb, and 1,680.3M Lb Zn. Proven + Probable reserves are 520.41M tonnes of 0.55 g/t Au, 32 g/t Ag, 0.3% Pb, and 0.7% Zn for a total of 9.1M Oz Au, 527.6M Oz Ag, 3,613.2M Lb Pb, and 7,994.5M Lb Zn. Measured resources are 94.03M tonnes of 0.25 g/t Au, 28 g/t Ag, 0.3% Pb, and 0.6% Zn for a total of 0.76M Oz Au, 85.6M Oz Ag, 579.6M Lb Pb, and 1,161.2M Lb Zn. Indicated resources are 104.77M tonnes of 0.24 g/t Au, 12 g/t Ag, 0.3% Pb, and 0.5% Zn for a total of 0.81M Oz Au, 76.7M Oz Ag, 610M Lb Pb, and 1,044.2M Lb Zn. Measured + Indicated resources are 198.8M tonnes of 0.25 g/t Au, 25 g/t Ag, 0.3% Pb, and 0.5% Zn for a total content of 1.57M Oz Au, 162.3M Oz Ag, 1,189.6M Lb Pb, and 2,205.4M Lb Zn. In addition, inferred resources are 14.88m tonnes of 0.3 g/t Au, 13 g/t Ag, 0.2% Pb, and 0.6% Zn for a total of 0.14M Oz Au, 6.4M Oz Ag, 54.1M Lb Pb, and 206.6M Lb Zn (Mineral resources are exclusive of mineral reserves).
  • Mexican Gold Corp., announced plans to update mineral resources for its Las Minas project in Veracruz. It also announced plans to conduct 3,000m of drilling to update and expand its open pit modeled mineral resource at the El Dorado/Juan Bran and Santa Cruz zones.
  • Premier Gold Mines Limited, commenced an underground drilling program at its Marianas/Mercedes mine in Sonora, where previous drill results suggest to have the potential to contain economic mineralization of higher than the current reserve grades. The goal is to convert the Marianas mineral resources to mineral reserves. If the results are positive, mining at Marianas could begin in H2 2019.
  • Pan American Silver Corp, discovered wide mineralized zones in limestone replacement mantos and thick intercepts of skarn below the current production levels at its la Colorada mine in Zacatecas. Drill highlights are in Hole U-39-18 with 223m of 69 g/t Ag, 1.9%Pb, and 3.4% Zn, including 32m of 227 g/t Ag; Hole U-30-18 with 71.6m of 54 g/t Ag, 2% Pb, and 5% Zn; Hole U-28-18 with 60.3m of 76 g/t Ag, 4.3% Pb, and 3.7% Zn; Hole U-32-18 with 46.3m of 54 g/t Ag, 2.3% Pb, and 4.4% Zn; Hole U-26-18 with 42.6m of 42 g/t Ag, 2.8% Pb, and 7% Zn, and other interval of 42m of 52 g/t Ag, 1.8% Pb, and 3.9% Zn; and Hole U-29-18 with 7.4m of 80 g/t Ag, 5.3% Pb, and 13.6% Zn, and other interval of 23.4m of 54 g/t Ag, 2.3% Pb, and 8.2% Zn. “These are extraordinary exploration results for our La Colorada mine, indicating the potential to substantially expand mineral resources, mine life and ultimately production capacity,”
  • Torex Gold Resources Inc., reported infill drilling results for its Media Luna project in Guerrero. Highlights intercepts include Hole ML 18-222A with 39.15m of 5.24 g/t Au, 93 g/t Ag, and 2.27% Cu (10.54 g/t Au Eq); Hole ML 18-215 with 49.63m of 4.8 g/t Au, 36 g/t Ag, and 0.97% Cu (7.0 g/t Au Eq); Hole ML 18-219W with 45.9m of 3.44 g/t Au, 59 g/t Ag, and 1.64% Cu (7.1 g/t Au Eq); and Hole ML 18-208W with 22.62m of 3.33 g/t Au, 87 g/t Ag, and 2.12% Cu (8.27 g/t Au Eq) (Intersections are reported as true thickness).
  • Azure Minerals Limited, released drill results from its Oposura project in Sonora. Significant intersections in the middle of the Central Zone are in Hole OPDH-173 with 12.05m of 23 g/t Ag, 1.7% Pb and 6% Zn, including 4.1m of 43 g/t Ag, 2% Pb and 10.5% Zn; and Hole OPDH-178 with 9.50m of 22 g/t Ag, 3.7% Pb, and 15.1 % Zn, including 6.15m of 31 g/t Ag, 4.7% Pb, and 22% Zn. Significant intersections in the East Zone into the Central Zone are in Hole OPDH-159 with 5m of 14 g/t Ag, 4% Pb, and 5.2% Zn and 6.15m of 97 g/t Ag, 2.3% Pb, and 13.4% Zn; Hole OPDH-171 with 4.4m of 294 g/t Ag, 5.6% Pb, and 14.8% Zn, including 3.6m of 353 g/t Ag, 6.6% Pb, and 17.7% Zn; and Hole OPDH-177 with 4.55m of 138 g/t Ag, 6.1% Pb, and 30.8% Zn, including 3.4m of 177 g/t Ag, 8% Pb, and 40.1% Zn. “These latest, high-grade, massive sulphide drill intersections from the sparsely drilled Central Zone confirm that this area has the potential to significantly increase Oposura’s resource base”. “They continue to build on the very positive results from the Oposura Scoping Study and confirm potential to extend the mine life and further improve the already impressive project economics.”

ON DEALS AND CORPORATE ISSUES

  • Canasil Resources Inc., signed a letter of intent providing for Pan American Silver to acquire Canasil´s interest in the Sandra-Escobar project in Durango. The non-binding LOI is to enter in a definitive agreement for a payment of CAD $2.0M and 2% NSR. The NSR royalty can be reduced by Pan American Silver to 1% at any time by paying CAD $4.0M.
  • Prize Mining Corporation, retained Link Media to provide communications and market awareness services (Manto Negro, Coahuila).
  • Metalla Royalty & Streaming Ltd., announced that it is proceeding to close the acquisition of the 2% NSR on the Santa Gertrudis project in Sonora from GoGold Resources Inc.
  • New Gold Inc., announced management changes (Cerro San Pedro, San Luis Potosi).
  • Odyssey Marine Exploration Inc., filed an action before the Superior Section of the Mexican Federal Administrative Court due to the SEMARNAT´s recent refusal to issue the environmental permit for its San Diego phosphate project in Baja California Sur.

Content like what you have just read can be seen at https://gambusinoprospector.com/ and at LinkedIn’s Mexico Mineral Exploration Group.

On the picture above, stibiconite-cervantite crystals in an epithermal system in Durango, Mexico.  Photo by Miguel A Heredia.

Highlights on the Second Week of October, 2018. Mining and Exploration News in Mexico

Sodic hydrothermal alteration

By Miguel A Heredia

During the 41th week of the year (October 08th to October 14th, 2018), at least 27 press releases were announced by companies working in Mexico, with eight reporting mining activities, seven informing on exploration results, four announcing financing issues, four communicating deals and corporate issues, two making donations to the local communities where they are working, and two reporting on resources and developments.  ON MEXICO ISSUES, Alamos Gold donated an educational center while Fresnillo plc contributed with a community library.  ON EXPLORATION, In Sonora, Minera Alamos reported drilling results from its Santana project, Sonoro Metals announced the launching of a 10,000m RC drilling program at its Cerro Caliche project, and Mexus announced an upcoming drill program at its Santa Elena project. In Chihuahua, VVC released drill results from its Samalayuca project. In Coahuila, Prize Mining reported underground sampling results from its Manto Negro project.  In Zacatecas, Advanced Gold presented drill results from its Tabasquena project. In Jalisco, Evrim received the environmental permit to drill its Cuale project. ON MINING, Capstone, Coeur, Endeavour, Fortuna, Great Panther, McEwen and Sierra Metals reported Q3 2018 results from their Mexican operations. Fortuna also reported overflow problems in the tailings facilities at its San Jose mine in Oaxaca. ON FINANCING, Galore closed a non-brokered private placement for gross proceeds of CDN$ 419.6 K. VVC increased its previous non-brokered private placement to CAD$ 2.5M. Sable raised an aggregate of $4.6M. Telson closed a non-brokered private placement for gross proceeds of $6.8M. ON RESOURCES AND DEVELOPMENT, Americas Silver provided updated mineral reserve and resource estimates for its Cosala operation in Sinaloa. Goldplay announced sampling results of historical core from its San Marcial project in Sinaloa.  ON DEALS AND CORPORATE ISSUES, Sonoro Metals acquired a 100% interest in the Cabeza Blanca concession (Cerro Caliche project, Sonora). Consolidated Zinc extended its share purchase plan until Monday 22 October, 2018 (Plomosas mine, Chihuahua). Leagold (Los Filos mine, Guerrero) appointed new COO and Plata Latina (El Naranjillo, Guanajuato) announced resignation of Director.

ON MEXICO ISSUES

  • Alamos Gold Inc., donated an educational center to the communities of Matarachi and Mulatos in Sonora.
  • Fresnillo plc., contributed with a library for the community of the Ejido Rodeo in Durango.

ON EXPLORATION

  • Minera Alamos Inc., reported initial results of a phase 1 drill program from its Santana project in Sonora. Significant intersections are Hole S118-116 with 93.5m of 0.65 g/t Au, Hole S118-115 with 17.8m of 0.73 g/t Au, and Hole S118-114 with 15.5m of 0.27 g/t Au and 14.9m of 1.4 g/t Au. “The first three holes were drilled near or within the Nicho deposit and were intended to evaluate mineralized extensions of previous exploration programs”. Assay results are pending from the remaining seven holes drilled during this phase 1 program.
  • Sonoro Metals Corp., announced the launching of a 10,00m RC drill program at its Cerro Caliche project in Sonora. The company has been granted with a 2 years environmental permit to drill 87 RC-holes in two years equivalent to approximately 10,000m. The Cerro Caliche´s target is a 2 square km zone with a cumulative total of over 10 km of gold mineralized quartz veins with associated lower grade veinlet zones.
  • Mexus Gold US, announced an upcoming drill program at its Santa Elena project in Sonora. Initial drilling will occur on 300m of the 2.2km long Julio vein and associated shear zone to probe a 100K Oz Au target.
  • VVC Exploration Corporation., presented results of sixteen holes drilled at the Gloria Extension East Zone within its Samalayuca project in Chihuahua. Highlights results are in Hole SC18-033 with 8.2m of 0.66% Cu, Hole SC18-34 with 10.1m of 0.34% Cu, Hole SC18-38 with 9.55m of 0.34% Cu, Hole SC18-39 with 9.6m of 0.38 % Cu, Hole SC18-40 with 14.4m of 0.35% Cu, Hole SC18-41 with 13.45m of 0.39% Cu, Hole SC18-43 with 25m of 0.32% Cu, Hole SC18-45 with 8m of 0.43% Cu, Hole SC18-46 with 6m of 0.41% Cu, Hole SC18-48 with 9m of 0.30% Cu, and Hole SC18-49 with 7.5m and 6m with 0.33% Cu and 0.35% Cu respectively.
  • Prize Mining Corporation, reported underground channel sampling results from the El Granizo mine within its Manto Negro Copper project in Coahuila. Thirty two individual samples returned > 1% Cu with a peak of 9% Cu. The weighted average content of the underground channel sampling was 2.62% Cu over an average channel height of 1.7m. Eleven samples returned > 100 g/t Ag and up to 199 g/t Ag, and eight samples with > 1% Pb to a maximum of 2.78% Pb.
  • Advanced Gold Corp., presented drill results from its Tabasquena project in Zacatecas. Three holes were drilled below the near surface oxide zone of the Tabasquena vein, the two furthest apart being 125m along strike. Highlights include the increase of the amount of quartz as drilling deeper and the discovery of 5 new blind epithermal veins.
  • Evrim Resources Corp., received drill permit and mobilized drill crew to its Cuale high sulphidation project in Jalisco. The drill program will consist of at least 3,000m and comprises between 10-15 drill holes. “The first drill holes at Cuale are planned at La Gloria to test the depth extent of the high grade Au mineralization encountered in trenches 1 and 4, followed by other high priority drill targets throughout the trenched area. Drilling is also planned at four step-out areas to test geophysical targets within the anomalous gold in soil geochemical and rock chip halo, including the North Dome which extends up to 1,000m north of the trenched area.

ON MINING

  • Capstone Mining Corporation, reported Q3 2018 results from its Cozamin mine in Zacatecas. Capstone milled 270,436 tonnes at a grade of 1.7% Cu, 1.1% Zn, 0.3% Pb and 49 g/t Ag to produce 9.7M Lb Cu, 4.6M Lb Pb, 983K Lb Pb, and 321K Oz Ag with metallurgical recoveries of 94.7%, 67.1%, 51.3% and 75.9% respectively.
  • Coeur Mining Inc., provided Q3 2018 results from its Palmarejo mine in Chihuahua. Coeur processed 300, 116 tonnes of 195 g/t Ag and 0.12 g/t Au to produce 1.3M Oz Ag and 14.7K Oz Au.
  • Endeavour Silver Corp., released Q3 2018 results from their three Ag-Au Mexican operations: Guanaceví mine in Durango, and the Bolañitos and El Cubo mines in Guanajuato. Production table for the third quarter is as follow:

 

Production for mine Tonnes produced Tonnes per

day

Grade

Ag

(g/t)

Grade

Au

(g/t)

Rec.

Ag

(%)

Rec.

Au

(%)

Ag

Oz

Au

Oz

Guanaceví 81,268 883 218 0.48 91.0 88.8 518,318 1,114
Bolañitos 109,728 1,193 84 1.67 79.7 82.0 236,197 4,832
El Cubo 126,825 1,379 188 2.00 88.0 86.1 674,313 7,022
Consolidated 317,821 3,455 160 1.50 87.5 84.8 1,428,828 12,968

 

  • Fortuna Silver Mines Inc., reported Q3 2018 results from its San Jose Mine in Oaxaca. Fortuna milled 262,710 tonnes of 258 g/t Ag and 1.61 g/t Au to produce 2M Oz Ag and 12.4K Oz Au, with metallurgical recoveries of 91.47% and 91.24% respectively. The company also reported that the heavy seasonal rains caused an overflow in a contingency pod of the dry stack tailings facilities at its San Jose mine.
  • Great Panther Silver Limited, announced Q3 2018 production results from their Mexican operations. At the Guanajuato Mine Complex, Great Panther processed 74,303 tonnes with grades of 124 g/t Ag and 2.12 g/t Au to produce 260.8K Oz Ag and 4.4K Oz Au with metallurgical recoveries of 87.8% and 87.1% respectively. At the Topia mine, the company processed 18,617 tonnes with grades of 334 g/t Ag, 0.90 g/t Au to produce 188K Oz Ag, 323 Oz Au, 11.28M Lb Pb, and 1.4M Lb Zn, with metallurgical recoveries of 94.0% for Ag and 59.6% for Au.
  • McEwen Mining Inc., presented production results from its El Gallo project in Sinaloa. Residual heap leaching at El Gallo resulted in 10.5K GEOs (gold equivalent ounces) in Q3 2018.
  • Sierra Metals Inc., released Q3 2018 production results from their Mexican operations. At the Bolivar mine, Sierra Metals processed 227,690 tonnes of 0.99% Cu, 17 g/t Ag and 0.17 g/t Au to produce 3.9M Lb Cu, 94K Oz Ag and 911 Oz Au with metallurgical recoveries of 78.30%, 74.27% and 68.59% respectively. At Cusi mine, the company processed 55,058 tonnes of 156 g/t Ag, 0.14 g/t Au, 0.3% Pb, and 0.3% Zn to produce 231K Oz Ag, 84 Oz Au 243K Lb Pb, and none Zn, with metallurgical recoveries of 83.49%, 32.97%, 78.0%, and 0.0% respectively.

ON FINANCING

  • Galore Resources Inc., closed a non-brokered private placement for gross proceeds of CAD$ 419.6K (Dos Santos, Zacatecas).
  • VVC Exploration Corporation, increased its non-brokered equity private placement financing to CAD$1.2M from the previously announced CAD$ 1.2M (Samalayuca Copper project, Chihuahua).
  • Sable Resources Ltd., raised an aggregate of $4.6M and also closed its previously announced bought deal financing for aggregate gross proceeds of $2.5M (Margarita project, Chihuahua).
  • Telson Mining Corporation, closed a non-brokered private placement for gross proceeds of $6.8M to finalize the construction of the Tahuehueto mine in Durango.

 

ON RESOURCES AND DEVELOPMENT

  • Americas Silver Corporation, provided update mineral reserve and resource estimates for its Cosala operation in Sinaloa, including Nuestra Señora, El Cajón, and San Rafel mines and the Zone 120 deposit. The estimate also includes San Felipe project in Sonora on which the company holds an option. Proven and probable mineral reserves at Cosala operation as June 30, 2018 are 2.9M tonnes of 110 g/t Ag, 1.7% Pb, and 4.0% Zn for a total content of 10.3 M Oz Ag, 107.7M Lb Pb, and 255.7M Lb Zn. Measured and Indicated mineral resources at Cosala (exclusive of mineral reserves) are 8.9M tonnes of 129 g/t Ag, 0.25% Cu, 0.5% Pb, and 1.2% Zn for a total content of 36.9M Oz Ag, 49M Lb Cu, 102.8M Lb Pb, and 231.2M Lb Zn, while inferred resources are 2.96M tonnes of 113 g/t Ag, 0.21% Cu, 0.9% Pb, and 1.4% Zn for a total content of 10.8M Oz Ag, 14M Lb Cu, 59.1M Lb Pb, and 88.1M Lb Zn. At San Felipe project, measured and indicated mineral resources are 4.7M tonnes of 61 g/t Ag, 2.48% Pb, and 5.42% Zn for a total content of 9.1M Oz Ag, 256M Lb Pb and 559.7M Lb Zn, while inferred resources are 2M tonnes of 48 g/t Ag, 1.4% Pb, and 3.6 g/t Zn for a total content of 3.1M Oz Ag, 63.2M Lb Pb and 157.8M Lb Zn.
  • Goldplay Exploration Ltd., announced positive results from sampling of the historical core at its San Marcial project in Sinaloa. Highlights results are in Hole SM-10-07 with 57.3m (TW 51.6m) of 122 g/t Ag Eq, including 14.3m (TW 12.9m) of 278 g/t Ag Eq, including 18.6m (TW 16.7m) of 117 g/T Ag Eq, and Hole SM-10-15 with 7m (TW 52.8m) of 104 g/t Ag Eq, including 12.5m (TW 11.2m) of 379 g/t Ag Eq. “The high-grade results support open pit potential of the initial 500 meter long deposit”.

ON DEALS AND CORPORATE ISSUES

  • Sonoro Metals Corp., acquired a 100% interest in the 10 Has Cabeza Blanca concession paying to the vendor US$175K and 250K Sonoro common shares, this to be paid in five installments over 2 years. “The Cabeza Blanca agreement completes our acquisition of all the mineral concessions under consideration within the 14 km² Cerro Caliche group,” said Kenneth MacLeod, President and CEO of Sonoro. “Cabeza Blanca’s strategic location within Cerro Caliche, along with the positive results from our sampling program and similar results from earlier exploration programs, makes this concession a priority target for Sonoro to drill.”
  • Consolidated Zinc Limited, extended its share purchase plan until Monday 22 October, 2018 from the previous closing date of 15 October 2018.

Content like what you have just read can be seen at https://gambusinoprospector.com/ and at LinkedIn’s Mexico Mineral Exploration Group.

On the picture above, sodic hydrothermal alteration in a Cu-Mo prospect in Coahuila, Mexico.  Photo by Miguel A Heredia.

Highlights on the Third Week of July, 2018. Mining and Exploration News in Mexico

By Miguel A Heredia

During the 29th week of the year (July 16th to July 22th, 2018), at least 30 press releases were announced by companies working in Mexico, with twelve informing on exploration results, nine announcing production results, four reporting on resources and developments, three communicating deals and corporate issues, and two  announcing financing issues.  ON MEXICO ISSUES, no relevant news. ON EXPLORATION, In Baja California Norte, One World Lithium presented geophysical results from its Salar del Diablo project. In Sonora, Colibri reported drill results from its El Pilar project, Minaurum reported exploration results from its Promontorio-Quintera project, San Marco announced exploration results from its Chunibas exploration program, and Millrock and Azure provided an exploration update on their Mexican properties. In Chihuahua, Mammoth Resources announced drill results from its Tenoriba project. In Coahuila, Discovery Metals reported exploration results from its Puerto Rico project. In Sinaloa, Kootenay presented exploration results from its Copalito project. In Durango, Southern Silver announced an expansion of the exploration program at its Cerro Las Minitas project. In Zacatecas, Advance Gold reported drill results from its Tabasquena project.  In the Estado de México, Impact discovered new zones at its San Ramon mine.  ON MINING, Several companies reported Q2, 2018 results on its Mexican operations. In Sonora, Mexus provided an update on its 370-8 Brothers property in Sonora. In Chihuahua, Sierra Metals announced Q2 results from its Bolivar and Cusi mines while GoGold reported results from its Parral property. In Sinaloa, Americas Silver presented Q2 results from its Cosala operation. In Durango, Avino reported Q2 results from its Avino mine. In Oaxaca, Fortuna Silver announced Q2 2018 results from its San Jose mine. First Majestic presented Q2 2018 results from its Mexican operations in Sonora, Sinaloa, Chihuahua, Durango, Zacatecas, Jalisco and Estado de Mexico. In Puebla, Almaden announced an increase of the average mill feed grades for its Ixtaca property.  ON FINANCING, Bacanora Minerals dropped a $100M placing for its Sonora Lithium project in Sonora. Candente announced the approval to extend the purchase of 5M of share warrants. ON RESOURCES AND DEVELOPMENT, Aranzazu filed a NI 43-101 FS for the restart of operations at its Aranzazu mine in Zacatecas and updated the resource estimate. Starcore filed updated 43-101 technical report on its San Martin mine. Capstone filed a NI 43-101 technical report for its Cozamin mine in Zacatecas. Gold Resource announced an expansion of its Arista Mine in Oaxaca. ON DEALS AND CORPORATE ISSUES, Evrim announced results of its annual and special general meeting of shareholders.  Silver Spruce executed an offtake agreement for potential future production from its Pino de Plata project in Chihuahua.

ON MEXICO ISSUES

  • No relevant news.

 ON EXPLORATION

  • One World Lithium Inc., presented results from a geophysical survey conducted on its Salar del Diablo project in Baja California Norte. Three very large and highly conductive zones were identified by a Volterra TEM in loop survey. Zone 1 is > 100m thick and covers six square km. Zone 2 surrounds Zone 1 and is < 100m thick and covers 24 square km. Zone 3 is estimated to be approximately 200m thick and covers > 30 square km.
  • Colibri Resources Corporation, reported RC drilling results from its Pilar project in Sonora. Significant results are 61m of 0.75 g/t Au, including 1.5m of 17.3 g/t Au; 6m of 0.68 g/t Au; 3m of 5.40 g/t Au; and 34.5m of 0.32 g/t Au. The drill results extend the Main Zone´s mineralized envelope to the northwest and southeast by upwards of a total of 145m. It represents an increase of 52% in the length of the Main Zone. Potential is open in both directions of the mineralized zone.
  • Minaurum Gold Inc., discovered the extension of the Promontorio-Quintera and Nueva Europa veins at its Alamos Silver project in Sonora. The Promontorio-Quintera vein was mapped and extends for 1km and is cut-off and down-dropped by a northwest trending fault while the Nueva Europa vein was mapped for over 600m. The extensions have the potential to host virgin mineralization at depth. Surface sampling on Promontorio South vein returned 1.1m of 181 g/t Ag and 1.06% Cu, while at Nueva Europa South vein, a 0.8m long chip rock sample returned 52 g/t Ag and 0.54% Cu, and a dump sample returned 91 g/t Ag and 1% Cu.
  • San Marco Resources Inc., identified many new significant Cu-Ag occurrences at its Chunibas property in Sonora; conducted a portable X-ray fluorescence rock analysis on an area of 300m by 1,400m, indicating anomalous to significant copper values, and received assays from ninety six rock chip samples ranging from 0.1% to 1.34% Cu. The company also carried out a saw-cut continuous channel sampling returning 30m of 0.16% Cu and 3 g/t Ag, and 22m of 0.17% Cu and 2 g/t Ag. Now, the mineralized NW-SE corridor is 1.7Km long by 300m wide, and remains open along strike and down dip. San Marco has begun preparations to perform a drill program at its Chunibas property.
  • Millrock Resources Inc., provided and exploration update on their Mexican properties in Sonora and San Luis Potosi. In Sonora, at La Navidad project, a 2,900m drilling program has been recently completed to test the El Cobre and the Crossover targets. Complete results are anticipated in early August. At El Picacho project (Orogenic gold), drill targets are emerging from the exploration work conducted in the first half of 2018. The company has authorized a drill program to begin later in the summer. At Batamote, good geological signs of a porphyry copper deposit have been identified and a major company is currently evaluating the property. At Los Cuarenta project (low-sulphidation epithermal Au-Ag), Millrock has acquired an option to purchase a key internal claim called Santa Rosalia. Drilling targets have been developed and drilling permit is in place. In San Luis Potosi, the Guadalcazar project hosts a high-grade Ag-Pb-Zn skarn with good drill intersections and historic mine workings, with potential to expand the known deposit. Millrock has received an offer to form an option agreement.
  • Azure Minerals Limited., provided an exploration update on its Sara Alicia and El Alacran properties in Sonora. At the Sara Alicia project, the stage 2 drilling campaign confirmed near-surface, high-grade Au-Co mineralization with maximum grade returning 53.8 g/t Au over 0.90m and 2.82% Co over 0.80m. The best Au interception was 19.6m of 8.6 g/t Au, including 15.3m of 10.6 g/t Au, while the best Co interception was 3.65m of 1.19% Co, including 1.5m of 2.66% Co. At the El Alacran project, the drilling campaign indicated the southern expansion of Loma Bonita epithermal Au-Ag system based on the presence of silicified zones covered by fresh-rock and high-resistivity geophysical anomalies extending to depth. At Cerro Colorado the company geologists identified the presence of porphyry-type alteration and veining with trace copper and molybdenum mineralization, warranting follow-up work. Teck will continue exploring the property with drilling planned to restart in Q3 2018.
  • Mammoth Resources Inc., announced drill results from its Tenoriba project in Chihuahua. Results are from the Masuparia area, in the central portion of the 6 km long trend of gold mineralization on the property. Significant results are 3m of 0.19 g/t Au and 10 g/t Ag in hole TEN 17-09 and multiple intersections in hole TEN 17-10 such as 4.5m of 0.42 g/t Au and 8 g/t Ag; 4.5m of 0.45 g/t Au and 3 g/t Ag, 22.5m of 0.35 g/t Au and 4 g/t Ag, 3m of 1.31 g/t Au and 50 g/t Ag, 3m of 0.65 g/t Au and 5 g/t Ag, and 24m of 0.31 g/t Au and 4 g/t Ag.
  • Discovery Metals Inc., reported underground channel sample results from the San Jose mine within its Puerto Rico project in Coahuila. Assay results represent 140m of workings and were collected at 3-5m intervals along both sides of the entire length of the developed workings. Mineralization is related to mantos, chimneys and faults. Mantos range from 0.5m to 1.5m in width (restricted by dimensions of workings) and are open in all directions laterally along strike and dip. Fourteen samples from mantos returned an average of 229 g/t Ag, 9.3% Pb, 17.6% Zn, and 0.3% Cu. Chimney widths range from 1m to 6m, with the main part of the chimney having a width of 5-6m, while the mineralized faults widths range from 0.4m to 1.4m, and are open along strike and at depth. Thirty three samples from chimneys and faults returned an average grade of 50 g/t Ag, 3.5% Pb, 4% Zn, and 0.8% Cu. The company is currently carrying out a detail structural study on the entire property to identify controls on mineralization. Additionally, it is planning to conduct a magnetic survey in preparation for drilling later in 2H 2018.
  • Kootenay Silver Inc., presented sampling results from its Copalito project in Sinaloa. Copalito is a low-sulphidation epithermal vein system. At least 4 main veins and numerous smaller veins have been identified, with individual veins found to be up to 15m wide and at least 2km long along strike. Eleven samples (5 chips and 6 grabs) on Cobriza vein returned grades from 47 to 2.5 kg/t Ag and 0.03 to 2.7 g/t Au, while twenty two samples on El Pilar vein returned grades from 2 to 166 g/t Ag and 0.04 to 1.05 g/t Au. Mapping and sampling on the La Chiva and Cinco Señores veins in the southern area of Copalito is ongoing. All the results will be used to determine grade distribution along the veins for drill targeting.
  • Sothern Silver Exploration Corp., announced an expansion of the exploration program at its Cerro Las Minitas project in Durango, with the mobilization of a second drill rig. The objective is to drill 2,000m of core to test multiple Ag-Au quartz veins within the recently acquired CLM West claim. Drill targets were identified by mapping and ground geophysics, and a sampling program of over 6000 float and rock chip samples throughout a >10km by 5km N-S corridor underlying the 207 square km CLM West claim package.
  • Advance Gold Corp., reported phase 1 drill results from its Tabasquena project in Zacatecas. Significant results are 10.5m of Au-Ag mineralization including 1.7m of 9.46 g/t Au and 37 g/t Ag, 0.55m of 12.65 g/t Au and 28 g/t Ag, and 0.55m of 6.31 g/t Au and 42 g/t Ag. The company is planning a second phase drill program to test the recently discovered veins and explore for new ones, as well as to follow-up on the high-grade gold intersections.
  • Impact Silver Corp., discovered new zones at its San Ramon mine through an underground drill program. Significant results with intersections 100m south of the current levels of the San Ramon mine are 2.04m of 0.23 g/t Au, 661 g/t Ag, 1.28% Pb, and 3.28% Zn; 4.97m of 0.12 g/t Au, 354 g/t Ag, 0.57% Pb and 1.48% Zn; and 1.25m of 0.1 g/t Au, 259 g/t Ag, 0.34% Pb and 1.14% Zn. The zone remains open for further extension vertically above for nearly 300m and to the south.

ON MINING

  • Mexus Gold US, provided and update on its 370-8 Brothers property in Sonora. VAT leaching test of oxidized sulphide ore reported that 50% of the sulphides remain as encapsulated Au and Ag bearing mineralization, with As, Pb and Zn, making difficult its extraction by simple gravity and/or cyanide leaching, unless they are pretreated via roasting to eliminate the sulphur. “About 80 tons of this oxidized ore was crushed to < 3 inches and put in a steel tank and leached for a period of 25 days.  Eight head assay samples were taken averaging 1g/t Au and 50 g/t Ag with one sample showing 30 g/t Au and another sample with 800 g/t Ag.  Solution was assayed daily for a week showing recoveries of 1.25% in gold and 13% in silver with a slow increase after a week and large cyanide consumption.  The solution was assayed after 3 weeks and turned out to have minimum increase up to 26% in silver and gold remaining the same”.
  • Sierra Metals Inc., reported Q2 results from its Bolivar and Cusi mines in Chihuahua. At Bolivar mine, a total of 272K tonnes were processed at grades of 0.15 g/t Au, 17 g/t Ag, and 0.97% Cu to produce 911 OZ Au, 110K Oz Ag, and 4.7M Lb Cu, with metallurgical recoveries of 71.81%, 75.53% and 81.33% respectively. At Cusi mine, a total of 46.4K tonnes were processed at grades of 0.16 g/t Au, 156 g/t Ag, 0.4% Pb, and 0.3% Zn, to produce 96 Oz Au, 190K Oz Ag, and 287K Lb Pb, with metallurgical recoveries of 39.8% Au, 81.66% Ag, 77.22% Pb and 0% Zn.
  • GoGold Resources Inc., presented Q2 2018 results from its Parral operation in Chihuahua. GoGold processed 447K tonnes of tailings material to produce 164K Oz Ag and 1,630 Oz Au.
  • Americas Silver Corporation, announced results from its Cosala operation in Sinaloa. On Q2, 2018, the company milled 139K tonnes of 42 g/t Ag to produce 94K Oz Ag, 2.9M Lb Pb, and 8.7M Lb Zn
  • Avino Silver & Gold Mines Ltd., presented Q2 2018 results from its Avino mine in Durango. The company processed 184.7K tonnes of 0.42 g/t Au, 70 g/t Ag, and 0.45% Cu to produce 1,734 Oz Au, 323 Oz Ag, and 1.48M Lb Cu, with metallurgical recoveries of 75%, 81% and 90% respectively.
  • Fortuna Silver Mines Inc., reported Q2 2018 results from its San Jose mine in Oaxaca. Fortuna milled 134K tonnes of 1. 86 g/t Au and 268 g/t Ag to produce 14.4K Oz Au and 2M Oz Ag with metallurgical recoveries of 91.54% and 91.67% respectively.
  • First Majestic Silver Corp., announced Q2, 2018 production results from its Mexican operations. At Santa Elena mine in Sonora, a total of 228K tonnes of 2.3 g/t Au and 120 g/t Ag were milled to produce 11K Oz Au and 535K Oz Ag. At San Dimas mine in Sinaloa, a total of 85.7K tonnes of 4.3 g/t Au and 307 g/t Ag were processed to produce 11.3K Oz Au and 809K Oz Ag. At La Encantada mine in Chihuahua, a total of 238K tonnes of 83 g/t Ag were processed to produce 23 Oz Au and 325K Oz Ag. At La Parrilla mine in Durango, a total of 123.6K tonnes of 131 g/t Ag, 1.4% Pb and 1.5% Zn were milled to produce 235 Oz Au and 361K Oz Ag, 1.6M Lb Pb, and 1.4M Lb Zn. At Del Toro mine in Zacatecas, a total of 65.8K tonnes of 117 g/t Ag and 2.7% Pb were processed to produce 73 Oz Au, 167.6K Oz Ag, and 2.3M Lb Pb. At San Martin mine in Jalisco, a total of 74.4K tonnes of 0.6 g/t Au and 203 g/t Ag were milled to produce 1,331 Oz Au and 138.4K Oz Ag. At La Guitarra mine in Estado de Mexico, a total of 35.7K tonnes of 1.5 g/t Au and 154 g/t Ag were milled to produce 1400 Oz Au and 138.4K Oz Ag. Unfortunately, First Majestic announced the temporary suspension of work at its la Guitarra mine scheduled to start on August 1st. It is until economic conditions improve or the property is sold.
  • Almaden Minerals Ltd., announced an increase of the average feed mill grades of 39% for Au and 47% for Ag from bulk ore sort test for its Ixtaca project in Puebla. Applying the ore sort process, the metallurgical recovery is 88% for Au and 93% for Ag and reduces the environmental footprint over the life of mine by reducing process tailings, water usage and energy requirements and CO2 “The detailed impact of the ore sorting results on the Ixtaca project will be evaluated as part of the ongoing Feasibility Study, which is anticipated to be completed in 2018”.

ON FINANCING

  • Bacanora Lithium plc., dropped a $100M placing for its Sonora Lithium project in Sonora, citing “difficult market conditions”.
  • Candente Gold Corp., announced the approval to extend the exercise period of 5M of share purchase warrants from August 12, 2018 to August 12, 2020.

 ON RESOURCES AND DEVELOPMENT

  • Aura Minerals Inc., filed a NI 43-101 FS for the restart of operations at its Aranzazu mine in Zacatecas. The company also updated the mineral resource and reserve estimates. Measured + indicated resources are 12.5M tonnes of 1.08 g/t Au, 20 g/t Ag, and 1.61% Cu for a total of 435K Oz Au, 8M Oz Ag and 444.4M Lb Cu. Proven and probable reserves are 4.6M tonnes of 1.17 g/t Au, 19 g/t Ag, and 1.72% Cu, for a total of 174K Oz Au, 2.8M Oz Ag, and 176.4M Lb Cu. (Mineral reserves are inclusive of mineral resources). The orebody consists of seven mineralized domains and has a strike length of 1.5km, width up to 250m and 600m depth. The mineral resource estimate is based on 1,336 holes for a total of 219,586m.
  • Starcore International Mines Ltd., filed an updated 43-101 technical report for its San Martin mine in Queretaro in which reported mineral resources and reserves as of April 30, 2018. Total proven + probable reserves are 1.65M tonnes of 2.11 g/t Au and 33 g/t Ag for a total of 154.4K Oz Au Eq. Total indicated + inferred resources are 1.5M tonnes of 1.94 g/t Au and 25 g/t Ag for a total of 113K Oz Au Eq. The total mineral reserves and resources are 3.1M tonnes of 2.03 g/t Au and 29 g/t Ag for a total of 267.3K Oz Au Eq.
  • Capstone Mining Corp., filed a NI 43-101 technical report for its Cozamin mine in Zacatecas. In this TR, Capstone reported a mineral resource estimate which was announced on the past June 05, 2018.
  • Gold Resource Corporation, announced significant drill interceptions of 23.39m @ 2 g/t Au, 200 g/t Ag, 0.58% Cu, 3.1% Pb, and 9% Zn, including 1.66m of 8.92g/t Au, 1.3Kg/t Ag, 0.93% Cu, 6.3% Pb and 8.8%Zn, and 9.94m @ 2.16 g/t Au, 95 g/t Ag, 0.82% Cu, 4.1% Pb and 12% Zn, including 3.1m @ 3.99 g/t Au, 177 g/t Ag, 1.01% Cu, 7% Pb, and 14.5% Zn to expands the Switchback´s strike length by approximately 100m, and discovered a new structure in the Arista vein system intercepting 2.08m @ 1.98 g/t Au, 1.6Kg Ag/ton, 0.25% Cu, 1% Pb, and 2.2% Zn, including 0.9m of 3.31 g/t Au, 2.7Kg/t Ag, 0.45% Cu, 2% Pb, and 4.1% Zn.

ON DEALS AND CORPORATE ISSUES

  • Evrim Resources Corp., announced results of its annual and special general meeting of shareholders. (Cuale project, Jalisco).
  • Silver Spruce Resources Inc., executed an offtake agreement with IBB International Holdings Limited for potential future production from its Pino de Plata project in Chihuahua. “The Company has agreed to deliver any and all future production from the Pino de Plata project for a period of at least ten years, commencing with the first delivery. The ten-year term of the agreement will automatically extend by successive one-year terms, unless either party expresses written desire o terminate the agreement. The purchase price of the delivered production will be at a three percent (3%) discount to the London Metals Exchange metals pricing on the dates of delivery to the buyer”.

Content like what you have just read can be seen at https://gambusinoprospector.com/ and at LinkedIn’s Mexico Mineral Exploration Group.

On the picture above, a diatreme breccia in a prospect in Durango, Mexico. Photo by Miguel A Heredia.

 

 

 

Highlights on the Second Week of July, 2018. Mining and Exploration News in Mexico

211 - copia

By Jorge Cirett

During the 28th week of the year (July 9th to July 15th, 2018), at least 23 press releases were announced by companies working in Mexico. Three companies updated on exploration advances. one company announced a financing round while another tries to extend the period for exercise of warrants. Seven companies released Q2 production results and two others a PEA on its properties. Seven companies released advances on the development or exploration of their resource base, and finally one company announced the appointment of its Vice-president Exploration and one other company the optioning of a property to a third party, and returning another to the underlying owner. ON MEXICO ISSUES, No relevant news. ON EXPLORATION, In Sonora, Ridgestone Mining completed an IP survey on its Rebeico property. In Chihuahua Golden Goliath resumed exploration on its San Timoteo project, and in Veracruz Mexican Gold released rock chip sampling results from its Las Minas project.  ON MINING Torex Gold, Endeavour Silver, Great Panther, Capstone, Excellon, Premier Gold and Hecla released second quarter results on production. Sierra Metals released a PEA on a projected production increment at its Bolivar mine in Chihuahua.  ON FINANCING, Prize Mining closed the first tranche of a non-brokered private placement. Candente Gold applied to extend the expiration period of warrants issued on a previous financing. ON RESOURCES AND DEVELOPMENT, Santacruz Silver, SilverCrest, Avino Silver, Kootenay Silver and Golden Minerals released drilling or exploration results on their properties with resources. Orla Mining released a PEA on its Camino Rojo Property in Zacatecas. ON DEALS AND CORPORATE ISSUES, Discovery Metals announced the appointment of Gernot Wober as VP Exploration. Riverside Resources optioned its La Silla property (in Sinaloa) to Sinaloa Resources, and returned the Glor property (in Sonora) to underlying owner Argonaut Gold, after two unsuccessful drill campaigns by Centerra Gold.

ON MEXICO ISSUES

  • No Relevant News.

ON EXPLORATION

  • Golden Goliath Resources Ltd. reported the commencement of its summer exploration program at its San Timoteo property in the Uruachic district of Chihuahua. San Timoteo hosts the longest mining tunnel in the district, with mapping and sampling having defined three ore shoots and a manto horizon within it. No exploration has been carried below the level of the tunnel, and the workings are interpreted to be above the boiling zone of an epithermal system, hence the possibility of potential bonanza grades down dip.
  • Mexican Gold Corp. released high grade sampling results from the Pueblo Nuevo area of its Las Minas projects in Veracruz. Multiple new vein occurrences have been discovered in the Pueblo Nuevo Valley structural corridor. The veins “show characteristics of mesothermal quartz veins”, generally 20 to cm in width, sub-vertical dips and no post mineral deformation. The dioritic host rock displays argillic alteration and sulfides up to one meter on each side of the veins. Chip sampling results include 0.43 m @ 7.87 g/t Au, 74 g/t Ag, 3.5% Zn; 0.30 m @ 6.14 g/t Au, 60 g/t Ag, 5.3% Zn; 0.50 m @ 19.18 g/t Au, 229 g/t Ag, 2.25% Zn; 0.3 m @ 4.33 g/t Au, 30 g/t Ag, 1.1% Zn; 0.15 m @ 16.17 g/t Au, 101 g/t Ag, 0.6% Cu, 14.6% Zn; 0.60 m @ 3.18 g/t Au, 17 g/t Ag, 3.5% Zn; 0.40 m @ 4.11 g/t Au, 22 g/t Ag; 0.45 m @ 19.41 g/t Au, 148 g/t Ag, 1.5% Cu, 0.8% Zn; 0.60 m @ 19.26 g/t Au, 70 g/t Ag, 2.3% Zn; 0.75 m @ 10.12 g/t Au, 30 g/t Ag.
  • Ridgestone Mining Inc. completed an induced polarization (IP) geophysical survey at its Rebeico Au-Cu project in Sonora. The survey comprised nine lines of IP, each 2 km long, for a total of 18 line kilometers spaced 200 m apart, covering an area of 1.6 by 2.0 km. Ridgestone has an option to acquire 100% interest in the project (subject to a 2% NSR) from YQ Gold de Mexico S. de R.L. (a Mexican corporation). The property covers 167 hectares, and includes the Alaska mine, which has old workings of up to 70 m of depth.

ON MINING

  • Torex Gold Resources Inc. released second quarter production results for 2018, period during which 80 K Oz Au were produced at its Limon-Guajes mine in Guerrero. Production has been ramping up, with 9 K tones per day (tpd) on April, 11 K tpd on May and 13 K tpd on June. The SART plant produced its first copper precipitate, with the operations team now taking the plant to full production. The updated technical report on El Limon-Guajes and Media Luna project is to be completed in late July/early August.
  • Sierra Metals Inc. announced the results of a preliminary economic assessment (PEA) on its Bolivar mine in Chihuahua, with the report being filed within 45 days. The PEA includes a net present value (NPV) of US$214 M at 8% discount rate, a return on investment (ROI) of 550%, on 3-4 years payback period and a net after-tax cash flow of US$303 M. The plant is to process 5 K tpd at recovery rate of 85% Cu to produce 252.5 M Lb Cu on 11 years of mine life on the existing mineral resource estimate. The longhole stoping method is to be used for mining.
  • Endeavour Silver Corp. reported production results for the second quarter 2018. At Guanaceví, in Durango, 71.3 K tonnes were produced @ 225 g/t Ag, 0.67 g/t Au, recovering 90.2% Ag, 92.7% Au to obtain 464.9 K Oz Ag, 1,423 Oz Au. At Bolañitos, in Guanajuato, 108.5 K tonnes were milled @ 91 g/t Ag, 1.82 g/t Au, recovering 78.3% Ag, 82.3% Au, to obtain 248.6 K Oz Ag, 5,222 Oz Au. At El Cubo, in Guanajuato, 134.5 K tonnes were milled @ 171 g/t Ag, 1.92 g/t Au, recovering 86.8% Ag, 84.6% Au, to obtain 642.4 K Oz Ag, 7,029 Oz Au. Consolidated production was 1,355.9 K Oz Ag, 13,674 Oz Au. The El Compas mine in Zacatecas is on track to commence commercial production by the end of July at the target capacity of 250 tpd.
  • Great Panther Silver Mines Ltd. reported production results for the second quarter 2018. At the Guanajuato Mine Complex, in Guanajuato, 77 K tonnes were processed @ 127 g/t Ag, 2.40 g/t Au, recovering 87.7% Ag, 88.2% Au to obtain 276.6 K Oz Ag, 5,240 Oz Au. At Topia, in Durango, 18.1 K tonnes were milled @ 371 g/t Ag, 0.69 g/t Au, recovering 93.9% Ag, 63.1% Au, to obtain 203.1 K Oz Ag, 253 Oz Au. Consolidated production of 95.2 K tonnes milled produced 479.8 K Oz Ag, 5,492 Oz Au, 480 tonnes Pb, 528 tonnes Zn.
  • Capstone Mining Corp. released production results for the second quarter of 2018, including figures from its Mexican operations. At Cozamin, in Zacatecas, 227.6 K tonnes were mined, 224.2 K tonnes milled (4,464 tpd) @ 1.66 % Cu, 1.04% Zn, 0.29% Pb, 45.3 g/t Ag. Recovery was 94.6% Cu, 66.4% Zn, 48.1% Pb, 77.5% Ag, to produce 13,581 tonnes of copper concentrate @ 25.9% Cu, 517 g/t Ag; 3,529 tonnes of zinc concentrate @ 47.5% Zn and 494 tonnes of lead concentrate @ 62.3% Pb, 1,717 g/t Ag.
  • Excellon Resources Inc. announced second quarter 2018 production results from its Platosa mine in Durango. Silver equivalent (AgEq) production increased 120% to 637.2 K Oz AgEq on Q2 2017 figures. 16.1 K tonnes were mined, 22.9 K tonnes milled @ 415 g/t Ag, 4.6% Pb, 6.7% Zn with recoveries of 89.6% Ag, 80.2% Pb, 82.2% Zn to produce 277.7 K Oz Ag, 1.85 M Lb Pb, 2.81 M Lb Zn, or 637.2 K Oz AgEq. Low-grade historical stockpiles and sump material with minimal associated mining cost continued to be processed. An AISC of less than $10 per Ag Oz was achieved.
  • Premier Gold Mines Ltd. released second quarter 2018 production results, including figures from its operations in Mexico. At Mercedes, in Sonora, 13,780 Oz Au, 44,366 Oz Ag were produced during the period. Production was impacted through the first half of the year owing to delays in the development of the Diluvio and Rey de Oro deposits. “Reinterpretation of the Diluvio ore shapes required changes to the stope designs. Mining in Rey de Oro was delayed by permitting requirements for the ventilation system”.
  • Hecla Mining Co. released preliminary results for the second quarter of 2018, including figures from its Mexican operations. At San Sebastian in Durango, 0.6 M Oz Ag, 3,872 Oz Au were produced in the period. The mill operated at an average of 415 tpd.

ON FINANCING

  • Prize Mining Corp. closed the first tranche of its non-brokered private placement for gross proceeds of $6.5 M. No finder’s fees were paid as part of this transaction. (Mercedes, Sonora).
  • Candente Gold Corp. has applied to extend the exercise period of 5 M outstanding share purchase warrants issued at a private placement in August 2016. “The original expiry date was August 12, 2018 and if the extension is approved, the new expiration date will be August 12, 2020”.

ON RESOURCES AND DEVELOPMENT

  • Sierra Metals Inc. released a new mineral reserve estimate on the new PEA on its Bolivar mine in Chihuahua. The Cu-Zn skarn (with Ag and Au credits). “Mineralization exhibits strong stratigraphic control and two stratigraphic horizons host the bulk of the mineralization: an upper calcic horizon, which predominantly hosts Zn-rich mineralization, and a lower dolomitic horizon, which predominantly hosts Cu-rich mineralization”. The indicated resources display 13.26 Mt @ 22.5 g/t Ag, 0.29 g/t Au, 1.04% Cu containing 9.6 M Oz Ag, 124 K Oz Au, 137.5 K tonnes Cu, and the inferred resources 8 M tonnes @ 22.4 g/t Ag, 0.42 g/t Au, 0.96% Cu containing 5.8 M Oz Ag, 109 Oz Au, 76.8 K tonnes Cu.
  • Santacruz Silver Mining Ltd. Reported initial phase I drill results from the Garcia and Armado veins on its Veta Grande project in Zacatecas. Ten drill holes totaling 3,323 m of core drilling have been completed, having received results on the first six holes. Some highlighted true width intervals: 1.0 m @ 0.05 g/t Au, 209 g/t Ag; 0.32 m @ 0.37 g/t Au, 312 g/t Ag; 4 m @ 0.06 g/t Au, 168 g/t Ag; 0.95 m @ 1.36 g/t Au, 235 g/t Ag, 7.5% Pb, 8.7% Zn, 0.2% Cu; 0.65 m @ 292 g/t Ag; 0.88 m @ 1.73 g/t Au, 34 g/t Ag.
  • SilverCrest Metals Inc. released further phase III drill results for the Las Chispas property in Sonora. Highlighted intervals on the Babicanora vein: 2.0 m @ 0.87 g/t Au, 269 g/t Ag; 2.5 m @ 6.04 g/t Au, 369 g/t Ag (including (0.8 m @ 14.95 g/t Au, 742 g/t Ag); 0.6 m @ 2.19 g/t Au, 63 g/t Ag. Highlighted intervals on the Babicanora footwall vein include: 5 m @ 54.59 g7t Au 6,535 g/t Ag (including 0.5 m @ 183.50 g/t Au, 21,858 g/t Ag); 2.3 m @ 4.07 g/t Au, 436 g/t Ag; 0.9 m @ 1.15 g/t Au, 151 g/t Ag. The sub parallel Babicanora FW vein high-grade footprint has now been traced for 250 m on strike.
  • Avino Silver Gold Mines Ltd. released drill results from the Chirumbo and Guadalupe areas of the Avino property in Durango. Avino vein highlighted core length intersects include 15.4 m @ 0.20 g/t Au, 129 g/t Ag, 0.64% Cu; 42.75 m @ 0.45 g/t Au, 46 g/t Ag, 0.44% Cu; 15.85 m @ 4.13 g/t Au, 20 g/t Ag, 0.07% Cu; 7.35 m @ 0.36 g/t Au, 47 g/t Ag, 0.33% Cu; 6.0 m @ 0.09 g/t Au, 202 g/t Ag, 0.64% Cu. Highlighted Guadalupe vein results include 0.60 m @ 1.38 g/t Au, 90 g/t Ag, 0.76% Cu; 1.50 m @ 4.79 g/t Au, 11 g/t Ag, 0.05% Cu; 3.75 m @ 0.32 g/t Au, 171 g/t Ag, 0.1% Cu; 1.60 m @ 0.23 g/t Au, 84 g/t Ag, 0.28% Cu; 5.20 m @ 0.07 g/t Au, 26 g/t Ag, 0.34% Cu; 3.90 m @ 0.33 g/t Au, 129 g/t Ag, 0.75% Cu. The Guadalupe vein has shown to extend along 800 m and to a depth of 250 m. Avino is planning a new drill program targeting the Aguila Mexicana vein system, which is one of the strongest and widest structures on the property.
  • Kootenay Silver Inc. released the results of eight core holes from its La Cigarra property in Chihuahua. The holes tested parts of the Las Carolinas, La Borracha and La Nogalera zones, returning medium to high grade silver intercepts in all areas. Highlighted results include: At La Borracha 12.37 m @ 33 g/t Ag, 0.05 g/t Au, 0.2% Pb, 0.2% Zn; At La Nogalera 1.78 m @ 48 g/t Ag, 0.72 g/t Au; 4.0 m @ 736 g/t Ag, 0.09 g/t Au, 0.3% Pb, 0.1% Zn; At Las Carolinas 14.0 m @ 79 g/t Ag, 0.03 g/t Au (including 6.79 m @ 144 g/t Ag, 0.05 g/t Au; 41.38 m @ 45 g/t Ag, 0.03 g/t Au.
  • Golden Minerals Co. disclosed that surface mapping and sampling identified the eastern extension to the Santa Maria vein at the Santa Maria project in Chihuahua. Several other veins were also discovered in the adjacent Cervantes concessions in an exploration exercise on which 542 rock chip samples were collected. The Santa Maria vein occurs as a series of quartz-calcite veins up to 4.5 m in width, returning assays as high as 0.6 g/t Au, 347 g/t Ag, 1.2% Zn. The Cervantes quartz-calcite vein system occurs 800 m east of the current resource area, for 700 m of strike length, returning up to 1.6 g/t Au, 207 g/t Ag, 0.24% Cu, 5.6% Pb, 19.5% Zn over widths of up to 1.3 m. Golden estimates completing the PEA during the third quarter of 2018.
  • Orla Mining Ltd. filed a preliminary economic assessment (PEA) on its Camino Rojo property, Zacatecas. The PEA visualizes a technically simple open pit mine and heap-leach operation with low capital and operating costs, “rapid payback and strong financial performance”. The project envisages a 3.3 payback period, working at a 18 K tpd rate that would place 42.5 M tonnes of material on the heaps @ 0.71 g/t Au, 13.6 g/t Ag (966 K Oz Au, 18.5 M Oz Ag), with a recovery rate of 67% Au and 15% Ag, producing 97,500 Oz/year at an All-in sustaining cost of $555 Oz/Au.

ON DEALS AND CORPORATE ISSUES

  • Discovery Metals Corp. announced the appointment of Gernot Wober as its Vice-President Exploration (Puerto Rico, Coahuila).
  • Riverside Resources Inc. and Sinaloa Resources Inc. signed a letter of intent (LOI) whereby Sinaloa Resources can earn up to 100% interest in Riverside’s La Silla project in Sinaloa. The initial option to earn 70% lies on Sinaloa issuing shares for $1 M, $60K in cash payments and exploration work commitments of $3 M over 36 months. To earn an additional 30% Sinaloa must spend a further $1 M in exploration and issue Riverside $500 K in shares. Riverside is to retain a 2.5% NSR if Riverside’s interest reduces to less than 10%. Previous work in the 2,071 hectares project includes 6 drill holes on the El Roble system, with intersects of up to 15 m @ 6.9 g/t Au.
  • Riverside Resources Inc. announced that drilling assays from two campaigns funded by Centerra Gold Inc. returned insufficient mineralized thickness and continuity to justify further exploration on the Glor project in Sonora. Riverside believes it has tested the best targets on the property and has terminated the underlying option earn-in agreement with Argonaut Gold.

Content like what you have just read can be seen at https://gambusinoprospector.com/ and at LinkedIn’s Mexico Mineral Exploration Group.

On the picture above, structure in fine grained sedimentary rocks with iron oxides and minor quartz veining, greenish clays on the walls. From a shallow epithermal system in Guanajuato. Picture by Jorge Cirett

Highlights on the Third Week of June, 2018. Mining and Exploration News in Mexico

 

By Miguel A Heredia

During the 25th week of the year (June 18th to June 24th, 2018), at least 23 press releases were announced by companies working in Mexico, with eight informing on exploration results, eight communicating deals and corporate issues, five  announcing financing rounds, one reporting on resources and development, and one running leaching tests.  ON MEXICO ISSUES, no relevant news.   ON EXPLORATION, In Sonora, Millrock reported trench results from its La Navidad project. In Chihuahua, Ethos Gold filed a draft NI 43-101 technical report for its la Purisima project. In Coahuila, Discovery Metals reported sampling results from its Puerto Rico project. In Sinaloa, Chesapeake released exploration results from its Yarely project and Riverside reported exploration results from its La Silla project. In Zacatecas, Excellon commenced a drill program at its Miguel Auza project while Defiance defined a significant anomaly at its San Acacio project.  ON MINING, Mexus Gold provided and update on progress from its 8 Brothers/370 gold project in Sonora.  ON FINANCING, Aura Silver announced the extension of 3.5M warrants. Harvest Gold closed a second tranche of a non-brokered private placement for CDN$149,600. Maverix entered in a revolving credit agreement to borrow up to US$50M. Prize amended terms of a non-brokered private placement to raise money for $6.5M. Starcore completed a private placement for CDN$3M. ON RESOURCES AND DEVELOPMENT, Sierra Metals announced PEA results for its Cusi Mine in Chihuahua. Minera Alamos provided an update on its Guadalupe de Los Reyes project in Sinaloa. ON DEALS AND CORPORATE ISSUES, Coeur signed a definitive agreement with Evrim to option the Sarape property in Sonora.  Avino and Consolidated Zinc announced management changes, and Colibri and Torex reported results from its annual general meeting of shareholders. Marlin, Gold Reign, and Sailfish entered in a definite arrangement agreement regarding a combination business. Equinox announced a spin-out of its copper assets to create Solaris Copper. Valterra entered into an option agreement to acquire the Los Reyes Cu-Au project in Chihuahua.

ON MEXICO ISSUES

  • No relevant news.

ON EXPLORATION

  • Millrock Resources Inc., reported trench results from its La Navidad project in Sonora. Significant results are 7m of 0.64 g/t Au; 8m of 0.5 g/t Au, 16m of 0.59 g/t Au; 4.5m of 1.63 g/t Au; 2m of 6.5 g/t Au, 1.3m of 5.26 g/t Au; and 1.5m of 4.5 g/t Au. Its partner Centerra Gold is funding the exploration program at La Navidad and has authorized an extension of the drilling program from 1,650m in 7 holes to 2,900m in 17 holes.
  • Ethos Gold Corp., filed a draft NI 43-101 technical report for its la Purisima project in Chihuahua. The mineralization target consists of low sulphidation epithermal veins which have been traced for over a N-S strike length of over 1.5km in length. The company signed a property access agreement to commence mapping and sampling work with 389 samples collected to date of which 189 have been already submitted to the lab for assays.
  • Discovery Metals Corp., reported sampling results from its Puerto Rico project in Coahuila. 293 channel samples were collected at the Zaragoza mine, of which 83 were from manto mineralization and returned an average grade of 129 g/t Ag, 4.3% Pb, 7.6% Zn, and 0.12% Cu.
  • Riverside Resources Inc., presented geochemical results of 52 samples collected at its La Silla project in Sinaloa. Significant results from the rock chip and channel samples are 1m of 2.1 g/t Au and 27 g/t Ag; 1m of 9.4 g/t Au and 196 g/t Ag; and 1m of 19.9 g/t Au and 200 g/t Ag.
  • Chesapeake Gold Corp., released exploration results, including phase 1 drilling from its Yarely project in Sinaloa. At Loretos prospect, the drill target is a blind skarn-porphyry system indicated by a significant chargeability anomaly. Significant results are 213m of 0.11% Cu, including 64m of 0.17% Cu. At the Central prospect, one of the two holes drilled intersected several 3 to 6m wide structures returning silver values ranging from 11 to 30 g/t. At Lucy prospect, two holes tested skarn/carbonate replacement manto mineralization. Drilling results returned 22m of 0.33 g/t Au and 1.5 % Zn; and 25m of 0.6 g/t Au, 22 g/t Ag, 0.25% Cu, and 1.6% Zn. At Sundae prospect, the company has identified a 3km long high level-low sulphidation epithermal system that runs for over 3km along strike, with individual structures varying from 1-5m in width. A preliminary geophysical survey showed a continuity of the vein host structures to over 500m depth. At Los Mimbres prospect, skarn and hornfels boulders with Cu and Pb sulphide mineralization were recently discovered adding a new target within the Yarely project. Mineralization identified at Los Mimbres is similar to that encountered at Metates. Stream sediment, soil, rock geochemistry and geological mapping are underway to advance this target to the drill stage.
  • Excellon Resources Inc., commenced a 3,000m drill program at its Miguel Auza project in Zacatecas to test targets generated from surface mapping, IP surveying, and structural work conducted since mid-2017 at El Cobre, Abejas, Carmen-Lechuzas, and Lomo de Las Minas prospects. Highlights from the surface sampling are 2.3 g/t Au and 667 g/t Ag at Lomo de Las Minas. Results up to 2.9 g/t Au and 300 g/t Ag were sampled at Carmen and El Cobre confirming mineralization in veins at both targets. Mineralization at Miguel Auza is hosted in epithermal quartz veins similar to those found at Fresnillo mining district.
  • Defiance Silver Corp., defined a significant geophysical anomaly at its San Acacio project in Zacatecas employing Atomic Energy Resonance Imaging (AERI) technology. The AERI identified a pipe shaped anomaly which measures 400m in width, 300m in length, and is open at depth. The AERI anomaly is coincident with a recently delineated IP target, and will be drill tested in the near future.

ON MINING

  • Mexus Gold US., provided and update on progress from its 8 Brothers /370 gold project in Sonora. The company has completed the crushing and loading of ore into the VAT leaching tank to run tests and expects to commence the leaching when tests are completed in the next days.

ON FINANCING

  • Aura Silver Resources, announced its intentions to extend the expiration date of 3.5M warrants from July 9, 2018 to July 9, 2020. The exercise price remains unchanged at $0.05 (Taviche, Oaxaca)
  • Harvest Gold Corporation, closed a second tranche for CDN$149,600 for a total of CAD$479,600 gross proceeds raised in the non-brokered private placement. Gross proceeds will be used to explore its Cerro Cascaron project in Chihuahua.
  • Maverix Metals Inc., entered into a 3 years revolving credit agreement with two bank institutions to borrow up to US$50M. The credit can be extendable through mutual agreement between the involved parties (La Colorada, Zacatecas)
  • Prize Mining Corporation, amended terms of a non-brokered private placement to raise money for $6.5M (Manto Negro, Coahuila).
  • Starcore International Mines Ltd., completed a private placement of secured bonds for CAD$3M (San Martin, Queretaro)

 ON RESOURCES AND DEVELOPMENT

  • Sierra Metals Inc., announced PEA results for its Cusi Mine in Chihuahua. Highlights include an after-tax NPV of $92.2M USD at an 8% discount rate, a 9 years mine life based on existing mineral resource estimate, and a life of mine silver production of 30 M Oz. The company also reported Mineral Resource Estimate as at February 12, 2018. Total measured mineral resources are 362K tonnes @ 225g/t Ag, 0.55% Pb, 0.68% Zn, and 0.13g/t Au. Total indicated resources are 4.2M tonnes @ 217g/t Ag, 0.64% Pb, 0.66% Zn, and 0.21 g/t Au. Total inferred resources are 1.63M tonnes @ 158 g/t Ag, 0.54% Pb, 0.84% Zn, and 0.16 g/t Au.
  • Minera Alamos Inc., provided an update on its Guadalupe de los Reyes project in Sinaloa. The company commenced the mapping of the Mariposa- Zapote structure to evaluate extensions that have not been drilled and could be target areas to expand the resource. The company also collected metallurgical samples and are being prepared for Au leaching studies. It also commenced engineering studies to establish locations and preliminary designs for Au heap leaching facilities.

ON DEALS AND CORPORATE ISSUES

  • Coeur Mining Inc., signed a definitive agreement with Evrim Resources Corp., to option the Sarape property in Sonora. Coeur will have the exclusive right to acquire up to an 80% interest in the property by spending up to $16M USD on exploration, making staged cash payments of up to $2.5M USD, and completing a NI 43-101 compliant FS on a minimum measured and indicated resource estimate of 1M Oz AuEq, all within a ten-year period.
  • Marlin Gold Mining Ltd., Golden Reign Resources Ltd., and Sailfish Royalty Corp., have extended the previously announced LOI to June 29, 2018 to enter in a definitive arrangement agreement regarding a business combination of the Golden´s San Albino-Murra property in Nicaragua and Marlin´s La Trinidad property, México.
  • Equinox Gold Corp., announced plans to transfer all of its copper assets into a newly incorporated company named Solaris Copper Inc. (La Verde, Michoacan).
  • Valterra Resource Corporation, entered into an agreement to acquire the Los Reyes Cu-Au project in Chihuahua. Valterra may acquire a 100% interest, subject to a 2% royalty to a third party, by making staged payments totaling US$4M over a period of 5 years. Target consists of a +800m long Cu-Au rich skarn developed in the contact between a Tertiary-age granodiorite intrusive and Cretaceous-age limestones and shales.

Content like what you have just read can be seen at https://gambusinoprospector.com/ and at LinkedIn’s Mexico Mineral Exploration Group.

On the picture above, phyllic alteration in a porphyry copper system in Jalisco, Mexico. Photo by Miguel A Heredia.

Highlights on the Second Week of June, 2018. Mining and Exploration News in Mexico

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By Jorge Cirett

During the 24th week of the year (June 11th to June 17th, 2018), at least 16 press releases were announced by companies working in Mexico. Four companies updated on exploration advances, and one the commencement of mining activities. Four companies announced financing rounds, loans and bonds for an aggregate of over $55 M. One company disclosed news on drilling near resources and development while one other released metallurgical test results. ON MEXICO ISSUES, mining companies are awaiting a Supreme Court resolution on a Zacatecas State tax imposition on mining. ON EXPLORATION, In Sonora, Aloro updated on exploration work at Los Venados; Colibri finished drilling at El Pilar, and released results from a soil survey; Colibri disclosed drilling results by Agnico at its Pitaya project. In Veracruz, Azucar Minerals started a drilling campaign on the Norte zone and the north part of the Villa Rica zone at its El Cobre porject. ON MINING, Mexus started pilot mining at its 8 Hermanos property in Sonora. ON FINANCING, Alamaden raised $9.4 M; Starcore launched a private placement for CDN$3 M; Telson paid US$8 M and obtained a loan for US$8.5 M; Endeavour Silver is to sell common shares for an aggregate of up to $35.7 M. ON RESOURCES AND DEVELOPMENT, SilverCrest Metals released high-grade results from drilling of the Granaditas vein on Las Chispas project, in Sonora. Azure Minerals released metallurgical test results from Oposura, also in Sonora. ON DEALS AND CORPORATE ISSUES, Starcore decided not to go ahead with the acquisition of the Santa Fe property in Sinaloa. Defiance Silver entered into an agreement to acquire Mag Silver’s properties in the Zacatecas District.

ON MEXICO ISSUES

  • Fresnillo PLC and Mag Silver Corp. are awaiting a Supreme Court (Suprema Corte de la Nación) resolution on a mining duty attached to environmental impact, set by the state of Zacatecas. The federal government challenged the State’s right to impose such a duty back in 2017.

ON EXPLORATION

  • Aloro Mining Corp. updated on its exploration of the Los Venados project in Sonora. Mapping and sampling have defined a rhyodacitic volcanic dome associated with high sulfidation style alteration with Au-Bi-Mo anomalies. Several felsic dome/silica breccia complexes have been located, with the highest priority target on the dome at the southeast part of the property, where gold in soil anomalies and IP anomalies coincide. A new environmental report is being submitted to the authorities, seeking permit for 12 reverse circulation holes.
  • Colibri Resource Corp. completed the final 900 m of its 3,000 m phase 1 drilling program on its Pilar project in Sonora. Samples have been taken to the lab and results are pending. A 56 sample soil survey returned 10 samples greater than 0.1 g/t Au, and 3 samples over 1 g/t Au.
  • Colibri Resource Corp. released results from drilling on its Pitaya project in Sonora, by joint venture partner Agnico Eagle. Highlighted results from the last four holes comprise 9 m @ 0.26 g/t Au; 26 m @ 0.19 g/t Au; 34 m @ 0.22 g/t Au. During 2016-2017, Agnico drilled 7,641 m in 27 drill holes.
  • Azucar Minerals Ltd. has begun drilling the North zone and the north end of the Villa Rica zone of its El Cobre project in Veracruz. Preparations for this drilling campaign include surface and soil geologic and alteration focused mapping and sampling. “The current drilling at Villa Rica is focused on the Naranjo zone, a new area of exposed porphyry alteration and mineralisation located approximately 500 metres north of the previous Villa Rica drilling and about 1.2 kilometres south of the Norte Zone.”

ON MINING

  • Mexus Gold US begun mining at the 8 Brothers/370 project in Sonora. “The company has mined 1000 tons of material containing an average of 9 grams Au and 50 grams Ag per ton. This material is currently being run through a crushing system and placed into an aerated VAT holding tank”. Its portable Merril Crowe system has been installed and tested.

ON FINANCING

  • Almaden Minerals Ltd. closed its previously announced non-brokered private placement, raising gross proceeds of $9.44 M. Finders fees of $384.9 K cash and finder warrants of 192,450 shares at $1.35 until June 7, 2020 were paid to arms-length, licensed securities dealers on a portion of the offering (Ixtaca, Puebla).
  • Starcore International Mines Ltd. launched a private placement of secured bonds for CDN$3 M. “The Bonds will bear interest at 8% per annum, payable on maturity, and will mature 24 months from the date of closing” (San Martin mine, Queretaro).
  • Telson Mining Corp. announced the payment of US$8 M to Nyrstar Mining Ltd. as partial payment, and entered into a loan agreement with Nyrstar Canada (Holdings) Ltd. that converts the final US$8.5 M due on the Campo Morado acquisition agreement into a loan that extends the payment terms for eight months. The principal due is US$8.5 M that are to be paid starting July 13, 2018 with a monthly minimum of US$1 M plus interest, plus 70% of the free cash flow generated by Telson and any monthly excess cash balance above US$500 K.
  • Endeavour Silver Corp. is to sell from time to time and its discretion common shares for an aggregate of up to US$35.7 M, through “at the market” distributions (Terronera, Jalisco).

ON RESOURCES AND DEVELOPMENT

  •  SilverCrest Metals Inc. announced new drill results for the Granaditas vein at its Las Chispas property in Sonora. Highlighted true width (TW) intervals comprise 1.5 m @ 3.63 g/t Au, 190 g/t Ag; 1.8 m @ 12.14 g/t Au, 1,440 g/t Ag (including 0.40 m @ 47.50 g/t Au, 5,620 g/t Au); 1.3 m @ 3.24 g/t Au, 339 g/t Ag; 1.2 m @ 1.23 g/t Au, 114 g/t Ag. The vein has a high-grade footprint currently at 150 m long by 100 m high and 1.5 m average true width, grading 5.69 g/t Au, 596 g/t Ag.
  • Azure Minerals Ltd. released metallurgical test work results on its Oposura project in Sonora. Azure highlights a 34% overall increase in the recovery of Pb and Zn using a dense media separation technique.

ON DEALS AND CORPORATE ISSUES

  • Starcore International Mines Ltd. completed its due diligence and review of the Santa Fe project in Sinaloa, under a previously signed LOI (letter of intent). Starcore will not be proceeding with the acquisition.
  • Defiance Silver Corp. entered into an agreement to acquire Mag Silver’s Zacatecas silver district holdings. Mag Silver is to receive 5 M common shares of Defiance, approximately a 5% investment position. Defiance is to receive a 100% interest in the Lagartos project, along with a regional database. The company is to control 1,506 ha, including 65% of the Veta Grande vein and the San Acacio silver deposit.

Content like what you have just read can be seen at https://gambusinoprospector.com/ and at LinkedIn’s Mexico Mineral Exploration Group.

On the picture above, intense kaolinitization of felsic volcanic rocks on a shallow epithermal system in Guanajuato. Picture by Jorge Cirett.

 

Highlights on the Fifth Week of May, 2018. Mining and Exploration News in Mexico

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By Jorge Cirett

During the 22nd week of the year (May 28th to June 3rd, 2018), at least 20 press releases were announced by companies working in Mexico. Six companies updated on exploration advances, with two companies reporting quarterly reports. Four companies announced financing rounds for an aggregate of $9.8 M. Four companies disclosed news on drilling near resources and development while two reported on property deals. ON MEXICO ISSUES, the Dolores mines in Chihuahua saw its activities reduced due to security issues on access roads. ON EXPLORATION, In Sonora, Colibri released drill results from its Pilar project; Azure disclosed high-grade Au-Co drill intercepts from its Sara Alicia property. ON MINING, Impact Silver and Starcore International presented Q1 reports. ON FINANCING, Telson Mining graduated to Tier 1 issuer on the TSX. Four companies (Prime Meridian, Prospero Silver, Camrova and Minaurum) conducted financing rounds to raise up to $9.8M, with Minaurum heading the pack with $7 M. ON RESOURCES AND DEVELOPMENT, SilverCrest Metals released high-grade results from drilling a new vein on Las Chispas, in Sonora. Orla Mining released a PEA on Camino Rojo, in Zacatecas. Alio Gold released drill results from its Ana Paula project in Guerrero. Excellon Resources disclosed high-grade drill results from its Platosa mine in Durango. ON DEALS AND CORPORATE ISSUES, Sonoro Metals acquired another claim for its Cerro Caliche project in Sonora. Prime Meridian signed a LOI on the Parral Mining project with Eclipse Mining.

ON MEXICO ISSUES

  • The Dolores mine in Chihuahua reduced its operations due to a security incident on its access roads. The state government later vowed to maintain free access.

ON EXPLORATION

  • Sonoro Metals Corp. optioned the 20 hectare Tres Amigos mining concession (see below), contiguous to its Cerro Caliche project in Sonora. The concession contains a quartz vein system commonly sheeted and stockwork quartz veining in the host rock that is part sedimentary rock and part rhyolitic intrusive rock.
  • Prospero Silver Corp. started drilling at the Buenavista project in Durango. This is the fourth project to be drilled under the terms of a second round of strategic investment from Fortuna Silver Mines Inc.. The 3,000 m program is to test at least four drill ready zones: Buenavista South Stockwork, Buenavista NE Dike/Vein, Camaleon Vein and the Pajaro Stockwork. These targets occur within the lower portion of a strong high-level argillic cap, and drilling is to test for a deeper preserved epithermal zone.
  • Colibri Resource Corp. released results from 16 reverse circulation holes from its Pilar project in Sonora. Highlighted results include 10.5 m @ 0.28 g/t Au; 22.5 m @ 0.31 g/t Au; 12.0 m @ 0.52 g/t Au; 6.0 m @ 0.79 g/t Au; 52.5 m @ 0.20 g/t Au; 19.50 m @ 0.27 g/t Au; 40.5 m @ 0.73 g/t Au. Colibri is now drilling the final 900 m of the 3,000 m phase 1 program.
  • Azure Minerals Ltd. disclosed results from stage 2 drilling at its Sara Alicia property in Sonora. The campaign comprised 1,127 m in 13 holes. Highlighted intervals comprise 3.75 m @ 8.08 g/t Au; 5.90 m @ 5.5 g/t Au; 3.65 m @ 8.41 g/t Au; 19.6 m @ 8.65 g/t Au; 8.8 m @ 6.2 g/t Au and 3.65 m @ 1.19% Co, 24.95 m @ 0.31% Co, 9.5 m @ 0.48% Co, 16.2 m @ 0.32% Co. “The high-grade cobalt mineralisation is hosted within a shoot of massive and semi-massive sulphides that outcrops near the top of the Sara Alicia hill and plunges at a shallow angle towards the northwest.”
  • Almaden Minerals Ltd. reported drilling results from the Tano zone, about 1.2 km SW from the pre-feasibility study pit of its Ixtaca project in Puebla. Highlighted core length intervals comprise 28.9 m @ 0.36 g/t Au, 23 g/t Ag (including 6.3 m @ 0.79 g/t Au, 29 g/t Ag; 17.5 m @ 0.43 g/t Au, 7 g/t Ag; 4.6 m @ 1.35 g/t Au, 72 g/t Ag; 89. 5 m @ 0.83 g/t Au, 2 g/t Ag (including 40.0 m @ 1.45 g/t Au, 3 g/t Ag; 26.0 m @ 1.93 g/t Au, 4 g/t Ag; 1.0 m @ 27.50 g/t Au, 58 g/t Ag).
  • Auxico Resources Canada Inc. discovered three historical mines on its Zamora property in Sinaloa. A 1982 government report included all the rehabilitation work done in the property, including a map recording all historic workings within a 1,000 by 600 m grid. Sampling in the El Tacomate, El Arroyito and La Campeona returned 0.2 m @ 0.7 g/t Au, 107 g/t Ag; 0.9 m @ 1.9 g/t Au, 413 g/t Ag; 0.30 m @ 10.1 g/t Au, 942 g/t Ag.

ON MINING

  • Pan American Silver Corp. Initiated steps to reduce activities at its Dolores mine in Chihuahua, following security incidents along access roads to the site. Ore stacking to the leach pads and the processing plant are operating at normal level, and the mine site remains secure. The company is to maintain personnel at levels necessary for site security and reduced operating activities.
  • Impact Silver Corp. released financial results for the quarter ending on March 2018. Silver production was 213.2 K Oz during the period, resulting from milling of 46.6 K tonnes milled @ 160 g/t Ag. The net loss for the quarter was $0.5 M, and the company has a $3.8 M cash position.
  • Santacruz Silver Mining Ltd. reported first quarter operating results from Veta Grande in Zacatecas and Rosario in San Luis Potosi. At Veta Grande 34.9 K tonnes were processed @ 142 g/t AgEq, to produce 32,413 Oz Ag (47% recovery), 56 Oz Au, 109 tonnes Pb, 118 tonnes Zn. At Rosario, 13,410 tonnes were processed @ 232 g/t AgEq to produce 15,689 Oz Ag, 79 Oz Au, 25 tonnes Pb, 331 tonnes Zn. A 6,000 m surface drilling program is ongoing in the Veta Grande vein, and a 3,000 underground drilling program on the Armados vein. At Rosario, the 350 tpd production rate is expected to be achieved by end of Q2.

ON FINANCING

  • Telson Mining Corp. has been approved for graduation from Tier 2 issuer on the TSX Venture Exchange to Tier 1 issuer (Campo Morado, Guerrero).
  • Prime Meridian Resources Corp. is conducting a non-brokered private placement to raise proceeds of up to $1.5 M (Parral Mining project, Chihuahua).
  • Prospero Silver Corp. completed the second and final tranche of its previously announced private placement financing, raising aggregate gross proceeds of $1 M (Petate, Hidalgo; Buenavista, Durango).
  • Camrova Resources Inc. closed a non-brokered private placement, raising CAD$226 K (Boleo, Baja California Sur).
  • Minaurum Gold Inc. closed the final tranche of its previously announced oversubscribed private placement, raising $1.38 M, for total gross proceeds of $7.08 M (Alamos Silver, Sonora).

ON RESOURCES AND DEVELOPMENT

  • SilverCrest Metals Inc. announced drill results and discovery of the Babicanora Norte Vein on the Las Chispas property in Sonora. The vein is 300 m north of the parallel Babicanora vein. Highlighted true width (TW) results comprise 1.4 m @ 9.11 g/t Au, 1,033 g/t Ag; 1.3 m @ 5.19 g/t Au, 726 g/t Ag; 1.2 m @ 4.71 g/t Au, 593 g/t Ag; 1.5 m @ 23.96 g/t Au, 2,081 g/t Ag; 1.4 m @ 1.33 g/t Au, 141 g/t Ag. Mineralization consists of a 0.5 to 1.5 m wide banded quartz-argentite-pyrargyrite vein, proximal to a rhyolite dyke and measuring 200 m long by 100 m high, with an average width of 1.4 m @ 8.47 g/t Au, 879 g/t Ag, remaining open in most directions.
  • Orla Mining Ltd. released the results of a preliminary economic assessment (PEA) on its Camino Rojo property in Zacatecas. The new mineral resource estimate includes measured and indicated mineral resources of 9.65 M Oz Au, 102.4 M Oz Ag (354.9 M tonnes at 0.85 g/t gold and 9 g/t silver) and an inferred mineral resource of 1.82 M Oz Au and 16.2 million ounces of silver (65.2 M tonnes at 0.87 g/t gold and 8 g/t silver). The PEA is based on near-surface oxide and partly oxidized material that can be processed by heap leaching, on an 18 K tonnes per day operation (tpd), recovering 67% Au to produce 97.5 K Oz Au per year. The feasibility analysis is expected during the first half of 2019.
  • Alio Gold Inc. disclosed drilling results from its last four holes at its Ana Paula project in Guerrero. The highlighted intervals comprise 34.5 m @ 0.89 g/t Au; 53.7 m @ 1.03 g/t Au; 41.0 m @ 1.40 g/t Au; 64.5 m @ 1.24 g/t Au; 37.7 m @ 1.14 g/t Au; 19.8 m @ 1.49 g/t Au. Several of those intervals come from a hydrothermal breccia south of the proposed pit.
  • Excellon Resources Inc. released drilling results from its Platosa mine in Durango. Highlighted core length intervals from the 693, pierna and rodilla mantos include: 5.3 m @ 1,1153 g/t Ag, 8.2% Pb, 3.4% Zn; 5.4 m @ 649 g/t Ag, 3.3% Pb, 3.9% Zn; 7.9 m @ 594 g/t Ag, 0.9% Pb, 1.4% Zn; 2 m @ 2,148 g/t Ag, 19.2% Pb, 9.7% Zn; 6.7 m @ 870 g/t Ag; 13.3% Pb, 12.4% Zn.

ON DEALS AND CORPORATE ISSUES

  • Sonoro Metals Corp. optioned from two private owners the 20 hectare Tres Amigos mining concession, contiguous to its Cerro Caliche project in Sonora. The option increases the land holdings under option to 1,455 hectares. The $130 K option, which is payable on nine equal ($14.4 K) cash installments over 48 months, is to provide Sonoro with a 100% interest in the property.
  • Prime Meridian Resources Corp. signed a letter of intent (LOI) with Eclipse Mining Services Pty Ltd. for a 70% interest on in the Parral mining project in Chihuahua. PMR will earn a 30% interest by issuing CA$500 K in shares to Eclipse, US$200 K in shares to a shareholder of Eclipse, and cash payments of US$800 K as follows. A payment of up to US$185 K on completion of an initial 43-101 report, a further payment of up to US$750 K (plus 7% annual interest) for repayment of the loans made by Eclipse for development of the project and advance the balance of the required $US800 K cash payments toward the development capital of the project. PMR may earn a further 40% on the project by investing a further US4.0 M investment, or by financing the development of the processing plant input capacity to 500 tpd within 36 months of the date of the LOI.

Content like what you have just read can be seen at https://gambusinoprospector.com/ and at LinkedIn’s Mexico Mineral Exploration Group.

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On the picture below, kaolin workings on a shallow epithermal system in Guanajuato. Picture by Jorge Cirett.

Highlights on the Third Week of May, 2018. Mining and Exploration News in Mexico

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By Jorge Cirett

During the 20th week of the year (May 14th to May 20th, 2018), at least 17 press releases were announced by companies working in Mexico. Seven companies updated exploration advances, with only one company reporting a quarterly report and one other a round of financing. Two companies disclosed news on resources and development while four reported on deals and company issues. ON MEXICO ISSUES, No relevant news. ON EXPLORATION, In Sonora, San Marco was awarded the Espiritu concession, and Millrock begun a new drilling campaign at La Navidad. In Chihuahua, Endeavour Silver released drill results from its Parral properties; VVC Exploration commenced a new drill campaign at its Samalayuca project. In Coahuila, Discovery Metals presented rock sample results from three prospects within its Minerva project. In Sinaloa, Kootenay optioned the Copalito property. In Jalisco, Evrim commenced a third phase exploration campaign at Cuale. ON MINING, Starcore International presented a quarterly report. ON FINANCING, SilverCrest Metals announced the closing of a $17.25 M financing. Mexus Gold paid a $183 K debt. ON RESOURCES AND DEVELOPMENT, Mag Silver presented an advance on development of the Juanicipio project in Zacatecas. Minera Alamos completed the second phase of bulk leach testing at its Santana property in Sonora. ON DEALS AND CORPORATE ISSUES, Marlin Gold and Golden Reign signed a LOI pursuing a business combination. Kootenay Silver optioned the Copalito property in Sinaloa. Argonaut Gold informed on the state of affairs of the legal battle to resume blasting at its La Colorada mine in Sonora. Leagold received clearance from the Mexican government to complete a business combination with Brio Gold.

ON MEXICO ISSUES

  • No Relevant News.

ON EXPLORATION

  • Endeavour Silver Corp. disclosed drilling results from its Parral properties in Chihuahua. At the San Patricio vein system 8,846 m of core drilling have been completed over 1400 m of strike length. “Three mineralized areas were intersected, of which the largest and central zone now measures 600 m long by 250 m vertical (starting 150 m deep) by 1-3 m true thickness, still open to the south and at depth”. Highlighted true width (TW) intercepts include 2.1 m @ 303 g/t Ag, 0.05 g/t Au, 0.4% Pb, 0.5% Zn; 1.0 m @ 678 g/t Ag, 0.22 g/t Au, 3.5% Pb, 0.9% Zn; 3.0 m @ 689 g/t Ag, 0.24 g/t Ag, 1.6% Pb, 1.1% Zn; 1.6 m @ 293 g/t Ag, 0.27 g/t Au, 3.5% Pb, 7.6% Zn; 2.3 m @ 1,660 g/t Ag, 0.72 g/t Au, 6.5% Pb, 14.4% Zn. Metallurgical recoveries from core samples with flotation and leaching tests include 47% Ag from Sierra Plata (oxide), 98% Ag on El Verde (mixed), 95% Ag on Remedios-Argentina (mixed), 94% Ag and 93% Au on Palmilla (oxide) and 91% Ag and 86% Au in Cometa-San Juanico (mixed).
  • San Marco Resources Inc. announced it was awarded the Espiritu 2,712 ha SMR concession in the recent mineral concession lottery by the Mexican government. The property is less than 30 km SE from San Marco’s Chunibas and 1068 projects in the Sahuaripa district. “Espiritu SMR overlies a window of pre-mineral cretaceous volcanic and sedimentary rocks intruded by Laramide age granitoids”. Previous operator in the area, Kootenay Silver Inc. stated: “An extensive area of polymetallic vein, stockwork, breccia and gold-copper porphyry mineralization”. A porphyry copper setting and a vein and stockwork zone of precious and base metal mineralization are separated by a major fault. Selected drill hole intercepts include 48.0 m @ 0.19 g/t Au, 0.1% Cu; 220.5 m @ 0.14 g/t Au, 0.15% Cu. San Marco is preparing to do a first-pass ground validation and prospecting.
  • VVC Exploration Corp. commenced the third phase of diamond drilling at its Samalayuca copper project in Chihuahua. VVC expects to drill about 3,000 m in the next 180 days.
  • Kootenay Silver Inc. optioned the Copalito project in Sinaloa (See below). “The Copalito Project covers a gold and silver epithermal vein system comprised of numerous veins, with individual veins currently traced over strike lengths up to 2 kilometres. Veins vary in width from 0.5 to 10 meters at surface and grade from background to highs of 7.2 gpt gold and 1,620 gpt silver in grab samples”. Vein textures indicate a low or intermediate sulfidation vein system.
  • Millrock Resources Inc. is beginning a second round of drilling at its La Navidad project in Sonora. The target in the project is orogenic gold mineralization, bulk mineable run-of-mine oxidized deposit. The 1,650 m program aims to drill 150 – 250 m in depth in seven holes, testing areas of gold soil anomalies that now are supported by gold anomalies in trenches. The strongest anomalies occur in folded, faulted metasedimentary rocks of Jurassic age, in close proximity to diorite and monzonite dikes. An induced polarization survey has identified low angle structures conducive of orogenic gold deposits. A 1.4 km of trenching on 16 trenches has been completed, with multiple intervals of anomalous gold, like 18.0 m @ 0.56 g/t Au, 24.9 m @ 0.32 g/t Au, 18.2 m @ 0.20 g/t Au, 10.9 m @ 0.38 g/t Au.
  • Evrim Resources Corp. commenced a third phase exploration at its Cuale high sulfidation project in Jalisco. The program includes 3,000 m of drilling, following on discovery trenches 1 to 4 from La Gloria zone, where trench 1 returned 1.67 g/t Au over 263.7 m and trench 4 returned 13.61 g/t Au over 106.2 m. “The soil survey has already commenced and will be followed with up to 650 metres of trenching at La Gloria and surrounding targets to extend the known footprint of outcropping gold mineralization”. A 40 line-km controlled source audio-magnetotellurics (CSMAT) is planned on potential mineralization under shallow cover. A 3,000 m program is expected to commence on July.
  • Discovery Metals Corp. disclosed assay results of 152 samples from its Minerva project in Coahuila. “Minerva encompasses Ag-Pb-Zn mineralization hosted in skarns, mantos, chimneys and breccias”, similar to La Encantada mine 30 km to the East. The mineralization is located along the margin of a polyphase granitoid intrusive body, with ample zone of shallow gravel cover. At La Tercia prospect, channel samples returned 0.8 m @ 30 g/t Ag, 2.3% Pb, 4.6% Zn; 2.0 m @ 249 g/t Ag, 6.9% Pb, 0.1% Zn; 4.0 m @ 37 g/t Ag, 1.6% Pb, 0.2% Zn; 0.6 m @ 3.8% Pb, 0.4% Zn; 0.6 m @ 84 g/t Ag, 5.8% Pb, 0.2% Zn. At Concordia samples returned 0.8 m @ 1,775 g/t Ag, 14.5% Pb, 40.3% Zn; 0.7 m @ 51 g/t Ag, 2.6% Pb, 0.4% Zn; 0.4 m @ 11 g/t Ag, 0.4% Pb, 25.8% Zn. At Mina Minerva results include 5.1 m @ 39 g/t Ag, 0.4% Pb, 2.0% Zn; dump @ 229 g/t Ag, 30.5% Pb, 5.7% Zn; 0.8 m @ 143 g/t Ag, 9.7% Pb, 5.3% Zn; 1.0 m @ 41 g/t Ag, 2.0% Pb, 16.4% Zn.

ON MINING

  • Starcore International Mines Ltd. announced production results for the fourth quarter of its fiscal year 2018. During the quarter 71.9 K tonnes of ore @ 1.69 g/t Au, 40.6 g/t Ag were processed on its San Martin mine in Queretaro, resulting in the production of 4,140 Oz AuEq. Mill recoveries averaged 88.4% Au, 57.4% Ag. Also during the quarter the Altiplano facility received 373 tonnes of concentrate containing approximately 805 Oz Au and 26,813 Oz Ag.

ON FINANCING

  • SilverCrest Metals Inc. completed its prospectus offering for gross proceeds of $17.25 M, including the exercise of the over-allotment option in full. The company paid the underwriters a cash commission of up to 6% of the gross proceeds of the offering. The proceeds are to be used on the preparation of a preliminary economic assessment (PEA) at the Las Chispas property in Sonora, as well as continuing exploration in the several targets it contains.
  • Mexus Gold US. announced the payment of $183.3 K due to JMJ Financial, closing the current outstanding debt agreement prior to the expiration date (8 Hermanos, Sonora).

ON RESOURCES AND DEVELOPMENT

  • Mag Silver Corp. presented financial results for the first quarter of 2018. Underground development rate has intensified, and exploration drilling is now utilizing directional drilling to infill and expand the Deep Zone, which remains open to depth and on strike. The company funded advances on the Juanicipio project in Zacatecas, mainly by “cash calls” by the operator (Fresnillo PLC). At the end of the period the company had $152.7 M in cash and cash equivalents.
  • Minera Alamos Inc. has completed the second phase of its bulk testing heap-leach activities at its Santana project in Sonora. The initial phase used coarse crushing (<3”) and the second phase involved fine crushing (<1.2-5/8”) and agglomeration of the same mineralized material prior to leaching. The recoveries from the second phase were faster and consistent with those of the first phase of leaching, with 190 Oz Au recovered from 9,000 tonnes of material over a three month period, representing 0.65 g/t of recovered gold.

ON DEALS AND CORPORATE ISSUES

  • Marlin Gold Mining Ltd. and Golden Reign Resources Ltd. entered into a non-binding letter of intent (LOI) together with Wexford Capital LP, pursuing a business combination of Golden Reign’s San Albino-Murra property in Nicaragua, and Marlin’s La Trinidad mine in Sinaloa. Golden reign plans to acquire all Marlin shares. Upon completion of the transaction Marlin shareholders will own approximately 45% of Golden Reign shares, while Golden Reign shareholders will own 55% of the shares.
  • Kootenay Silver Inc. entered into an option agreement to acquire a 100% interest on the Copalito Ag-Au project in Sinaloa. The seven concessions 3,700 ha project can be acquired by making staged payments over a 4-year period, totaling US$985 K, with the vendors retaining a 0.5% NSR. A finders fee of C$10 K and 100 K common shares have to be paid.
  • Argonaut Gold Inc. reported that the Judiciary court hearing with respect to the company’s explosives permit for its La Colorada mine has been rescheduled to June 4, 2018. The company also appealed the Judiciary court’s original decision to temporarily suspend the explosives permit to the Collegiate Tribunal, requesting to re-instate the explosives permit so the company can blast material while the judiciary legal process continue. Argonaut estimates it has sufficient ore to continue operations until the end of July, at the present rate of 12,000 tonnes per day (tpd).
  • Leagold Mining Corp. received clearance from the Comisión Federal de Competencia Económica (COFECE) with respect to Leagold’s acquisition of Brio Gold Inc. “COFECE approval was the final government agency approval required before completing the acquisition, which is anticipated to occur on or around May 24, 2018”

Content like what you have just read can be seen at https://gambusinoprospector.com/ and at LinkedIn’s Mexico Mineral Exploration Group.

On the picture above, opaline silica from a shallow epithermal system in Guanajuato. Picture by Jorge Cirett.

MINERA ALAMOS COMPLETES PHASE 2 OF TEST HEAP LEACHING AT SANTANA GOLD PROJECT IN SONORA, MEXICO WITH FURTHER POSITIVE RESULTS

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Minera Alamos Inc. (“Minera Alamos” or the “Company”) (TSX VENTURE:MAI) is pleased to report that it has now completed the second phase of its bulk testing heap-leach activities at its 100% owned Santana gold project in Sonora, Mexico. The Company is now performing a full review of the leaching results as part of if its final project evaluation prior to making commercial production decisions for the
project.

Highlights on the Second Week of May, 2018. Mining and Exploration News in Mexico

 

By Miguel A Heredia

During the 19th week of the year (May 7th to May 13th, 2018), at least 40 press releases were announced by companies working in Mexico, with eight informing on exploration results, nine reporting Q1 2018 results, four announcing financing, sixteen communicating deals and corporate issues, and  seven reporting on resources & development. ON MEXICO ISSUES, Fernando Alanis Ortega was appointed President of CAMIMEX for the period 2018-2010. Investment in the mining sector reached $4,287 M USD in 2017, representing an increase of 14.3%. ON EXPLORATION, In Sonora, Colibri Resource reported drilling results at its El Pilar project, and Azure provided an update on its El Alacran project. In Chihuahua, Sable commenced a 4,000m diamond drill program on its Margarita project; Prospero and Fortuna revised its 2018 work program for Bermudez and Trias projects in Chihuahua, and Buenavista project in Durango.  In Zacatecas-Durango, Canasil announced plans to resume drilling at its La Esperanza project. In Guerrero, Alio announced that a regional exploration work is underway on its Ana Paula project. In Oaxaca, Megastar signed an option agreement to acquire a mining project. ON MINING, Alio Gold, Pan American Silver, Americas Silver, Excellon, GoGold, Hecla, Premier Gold, and Torex reported Q1 2018 results from their Mexican operations. Gainey completed upgrade of its Huajicori mill in Nayarit. ON FINANCING, Almaden announced a non-brokered private placement for $7M.  Minaurum raised $4.7M in its first tranche of a total $6M non-brokered private placement. Prize Mining announced a non-brokered private placement for $2M. Silver Spruce closed a non-brokered private placement for $287.7K. ON RESOURCES AND DEVELOPMENT, Alio initiated the construction of a 1,200m underground decline at its Ana Paula project in Guerrero. Hecla provided an exploration update on its San Sebastian Mine.  Leagold reported underground drilling results for its Los Filos mine in Guerrero. Premier Gold filed a technical report for its Mercedes mine in Sonora.  Sierra Metals reported mine development at its Cusi and Bolivar mines in Chihuahua during Q1 2018 period. US Antimony reported progress on the construction of the leach plant for the Los Juarez Au-Ag-Sb deposit in Queretaro. ON DEALS AND CORPORATE ISSUES, Alamos Gold, Endeavour, Excellon, and Fortuna reported results of its 2018 annual general meetings. Alamos also announced changes to its Board of Directors. Almadex approved spinout transaction. Great Panther announced the departure of its COO. Canuc announced the appointments of its CFO and Corporate Secretary. New Gold announced the appointment of its President and CEO. Candente reached an agreement with 3rd Eye Research to retain IR services. First Majestic completed the acquisition of Primero Mining. Goldplay received approval on the San Marcial option agreement in Sinaloa with SSR Mining. One World Lithium announced the granting of stock options. Primero announced receipt of Mexican antitrust clearance for arrangement with First Majestic. MX Gold signed a definitive agreement to sell interest at its Magistral project in Durango.

ON MEXICO ISSUES

  • Fernando Alanis Ortega, was appointed President of the Mexican National Chamber of Mines (CAMIMEX) for the period 2018-2010, replacing the outgoing Daniel Chavez Carreon.
  • CAMIMEX, reported that the investment in the mining sector reached $4,287 M USD in 2017. Although this represents an increase of 14.3% over the previous year, it is still 48.5% lesser that the invested record in 2012 which reached $8,043M USD.

ON EXPLORATION

  • Colibri Resource Corporation, reported drilling results from its El Pilar project in Sonora. Highlights are 9m of 8.16 g/t Au, including 1.5m of 33.4 g/t Au. The company has completed 2,117m in 20 RC holes “aimed to test for continuity within previously interpreted zones of mineralization, test for extensions to the known mineralization, and explore locally for new zones of gold mineralization”.
  • Azure Minerals Limited, provided an update on results from its El Alacrán project in Sonora, currently operated by Minera Teck S.A. de C.V. Teck drilled 14 holes to test extensions of Au mineralized zones at Loma Bonita area. Results suggest potential expansion of the Loma Bonita epithermal Au-Ag mineralized system at depth south towards Cerro San Simon, where four holes were drilled to test resistivity anomalies. Teck also drilled four holes at Cerro Colorado Zone to test mapped targets and geophysical anomalies generated by IP surveys and airborne magnetics, confirming potential for porphyry copper mineralization. Geological, geochemical and geophysical surveys are being carried out in H1, 2018 and will be followed by further drilling in H2, 2018.
  • Sable Resources Ltd., commenced a 4,000m diamond drill program to test 1.7km of Ag-bearing epithermal quartz veins at its margarita project in Chihuahua. The aim is to test for high-grade precious metal horizon 200m below mineralized surface samples.
  • Prospero Silver Corp., and Fortuna Silver Mines Inc., revised its 2018 exploration program, deciding to conduct a 6,000m drill program to test targets at its Buenavista, project in Durango, as well as at its Bermudez and Trias projects in Chihuahua.
  • Canasil Resources Inc., announced plans to resume drilling at its La Esperanza project in Zacatecas-Durango. The drill program was designed to test the northwestern and southeastern extension of the La Esperanza vein 50m below of the high grade found in hole ES-17-16.
  • Alio Gold Inc., announced that a regional exploration work is underway on its Ana Paula project in Guerrero which includes an airborne magnetic survey targeting further breccia or skarn targets.
  • Megastar Development Corporation, signed an option agreement with Paradex Inc., and Minera ZalameraA. de C.V., to acquire 100% of the Rama de Oro project in Oaxaca. “The Project is hosted by caldera-related Tertiary volcanic rocks (e.g. El Aguila model) crosscut by hydrothermal veining inferred to be related to late-stage granitic magmatism locally exposed as dikes and underlying the adjacent ‘Nueve Puntos’ mountain”. Exploration work on the property has identified a 4 square-Km zone of quartz veining, silicification, and clay alteration of volcanic rocks. Sampling on this altered zones have returned anomalous values of Au, Ag, As, Hg, and Sb, suggesting the upper part of a precious metal epithermal system.
  • Prize Mining Corporation, reported sampling results at its Manto Negro Copper project in Coahuila. Significant results include 6m of 2.73% Cu and 58 g/t Ag, 5.2m of 1.78% Cu and 40 g/t Ag, and 7m of 1.65% Cu and 36 g/t Ag.

ON MINING

  • Alio Gold Inc., announced Q1 results from its san Francisco mine in Sonora, Alio produced 17.6K Oz Au and ~9K Oz Ag at an AISC of $1,262 per Oz Au.
  • Pan American Silver Corp., reported results from its Dolores and La Colorada mines in Chihuahua and Zacatecas states respectively. Au and Ag production during the period of Q1, 2018 was 34.4K Oz Au and 1.2M Oz Ag at Dolores mine and 1K Oz Au and 1.65M Oz Ag at La Colorada mine.
  • Americas Silver Corporation, reported Q1 2018 results from its Cosala operations in Sinaloa. Americas processed 163.8K tonnes to produce 397K Oz Ag, 7.6 M Lb Pb, and 7.3M Lb Zn.
  • Excellon Resources Inc., reported Q1 2018 results from its La Platosa mine in Durango. The company processed 18.9K tonnes (including 5.9K tonnes of historical stockpile) at average grades of 359 g/t Ag, 3.8% Pb, and 6.4% Zn to produce 194.5K Oz Ag, 1.3M Lb Pb, and 1.8M Lb Zn.
  • Gainey Capital Corp., completed upgrade of its Huajicori mill in Nayarit to process 300 tonnes per day.
  • GoGold Resources Inc., announced Q1 2018 results from its Parral Tailings project in Chihuahua. The company stacked 439.3K tonnes on the leach pad to produce 265.6K Oz Ag and 1908 Oz Au.
  • Hecla Mining Company, reported Q1 2018 results from its San Sebastian mine in Durango. The mine produced 512K Oz Ag and 4,500 Oz Au.
  • Premier Gold Mines Limited, announced Q1 2018 results from its Mercedes mine in Sonora. The company milled 168.3K tonnes of 2.91 g/t Au and 31.8 g/t Ag to produce 15K Oz Au and 57.4K Oz Ag.
  • Torex Gold Resources Inc., reported Q1 2018 results from its El Limón-Guajes Mine Complex in Guerrero. Torex processed 785K tonnes of 3.29 g/t Au to produce 67.2K Oz Au at an AISC of $954 per ounce.

ON FINANCING

  • Almaden Minerals Ltd., announced a non-brokered private placement for $7M. Net proceeds will be used for exploration and development of its Ixtaca project in Puebla.
  • Minaurum Gold Inc., raised $4.7M in its first tranche of a total $6M non-brokered private placement. Net proceeds will be used for its ongoing exploration program at the Alamos Silver project in Sonora.
  • Prize Mining Corporation, announced a non-brokered private placement for $2M. Net proceeds will be used to conduct a geological, diamond drill and engineering assessment on its Manto Negro Copper project in Coahuila The aim is to produce a 43-101 compliant mineral resource.
  • Silver Spruce Resources Inc., closed a non-brokered private placement for $287.7K. Net proceeds will be used at Its Pino de Plata project in Chihuahua, aimed to drill target sites on the property.

ON RESOURCES AND DEVELOPMENT

  • Alio Gold Inc., initiated the construction of a 1,200m underground decline at its Ana Paula project, which is expected to be completed in Q3 2018. It will enable commencement of the first phase of the proposed underground diamond drill program, which will consist of 12,000 m in 55 holes. The company completed a six-hole 3,800m drill program below the proposed open pit to better define the geometry of the complex high-grade breccia and know the mineralization extent. Alio is also currently carrying out a drilling program on a high priority surface target 150m north of the proposed open pit, on which a detailed geological mapping at a scale 1:2,000 will be conducted.
  • Hecla Mining Company, provided and exploration update on its San Sebastian mine in Durango. An Infill drill program is been conducted to expand high-grade polymetallic zones similar to the Hugh Zone on the Middle and Francine veins, as well as oxide mineralization along the Professor and Francine veins. Significant results are 1.34m of 135 g/t Ag, 23.5% Pb, 18.5% Zn, and 7.9% Cu on the polymetallic zone, and 1.58m of 1,200 g/t Ag and 4.98 g/t Au on the oxide mineralization. At West Middle vein, the most significant intercepts are 1.34m of 317 g/t Ag, 10.1% Pb, 18% Zn, and 3% Cu, and 0.85m of 304 g/t Ag, 8.5% Pb, 9.4% Zn, and 3.8% Cu.
  • Mexican Gold Corp., reported step-out drilling results from the El Dorado / Juan Bran and Santa Cruz zones within its Las Minas projects in Veracruz. Significant interceptions are 8m of 1.06 g/t Au and 6 g/t Ag, including 6m of 1.36 g/t Au and 8 g/t Ag; 6m of 2.52 g/t Au and 10 g/t Ag; 14m of 1.96 g/t Au and 0.3 g/t Ag, including 6m of 3.49 g/t Au and 0.5 g/t Ag; and 24m of 1.24 g/t Au and 3 g/t Ag, including 10m of 2.12 g/t Au and 4 g/t Ag. The drill results tested the continuity of mineralization at El Dorado / Juan Bran zone and extended the mineralized zone to depth as well as cutting multiple mineralized intervals in the upward extension of the Santa Cruz zone.
  • Leagold Mining Corporation, reported underground drilling results for its Los Filos mine in Guerrero. Highlights are 4.1m of 24.2 g/t Au, 6.95m of 23.6 g/t Au, and 9.1m of 8.7 g/t Au from the Nukay, Conchita and Creston Rojo deposits respectively. The aim of the drilling program which comprises over 12,000m to date from 62,000m planned for 2018 is to identify additional resources along the contact of the circular intrusive orebodies.
  • Premier Gold Mines Limited, filed a technical report to release  updated mineral reserves for its Mercedes Mine in Sonora, with 3.3M tonnes of 3.94 g/t Au containing 417K Oz Au, and measured and indicated mineral resources for 3.68M tonnes of 4.32 g/t Au containing 511K Oz Au.
  • Sierra Metals Inc., reported mine development at its Cusi and Bolivar mines in Chihuahua during Q1, 2018. At Cusi, mine development totaled 676m. The company also carried out 1,448m of underground infill drilling, and 7,398m from surface. At Bolivar, mine development totaled 1,177m, with 650m to prepare stops for mine production, 466m to deepening ramps and developing service ramps for ventilation and pumping, and 61m of raises.
  • US Antimony Corporation, reported progress on the construction of the leach plant for the Los Juarez Au-Ag-Sb deposit in Queretaro. Testing and shake-down of the plant is anticipated in Q4 2018.

ON DEALS AND CORPORATE ISSUES

  • Almadex Minerals Limited., approved a spinout transaction of its early stage exploration projects, royalties interests, and certain other assets. Almadex will be re-named Azucar Minerals Ltd., upon closing of the transaction.
  • Candente Gold Corp., reached an agreement with 3rd Eye Research to retain IR services.
  • First Majestic Silver Corp., completed the acquisition of Primero Mining Corp. With the arrangement now completed the Primero´s shares will be delisted from the TSX. The company also announced the termination of the silver purchase agreement with Wheaton

Precious Metals Corp., relating to the San Dimas mine.

  • Goldplay Exploration Ltd., received the approval to acquire the 100% of the San Marcial, Sinaloa option agreement with SRR Mining. Goldplay will pay, over a three year option period, $2.6 M in cash, issue 3.5M common shares, and incur in exploration expenses for $3M.
  • Primero Mining Corp., announced receipt of Mexican antitrust clearance for the arrangement with First Majestic.
  • MX Gold Corp., signed a definitive agreement to sell its 50% interest on its Magistral project in Durango for a purchase price of US$4.5M.

Content like what you have just read can be seen at https://gambusinoprospector.com/ and at LinkedIn’s Mexico Mineral Exploration Group.

On the picture above, an oxidized quartz vein with a high content of disseminated pyrite in a prospect in Oaxaca, Mexico. Photo by Miguel A Heredia.