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

Banded quartz epithermal vein

By Miguel A Heredia

During the 37th week of the year (September 10th to September 16th, 2018), at least 22 press releases were announced by companies working in Mexico, with ten informing on exploration results, six reporting on resources and developments, four communicating deals and corporate issues, and two announcing production results.  ON MEXICO ISSUES, no relevant news.  ON EXPLORATION, In Sonora, Riverside and Kootenay announced exploration results from its Cecilia and La Mina projects respectively. In Chihuahua, Harvest Gold began preparations to drill test its Cerro Cascaron project and Sable Resources released drilling results from its Margarita project.  In Sinaloa, Auxico reported sampling results from its Zamora project In Durango, Gainey announced a 1st phase of exploration at its Las Margaritas project, Orex commenced fieldwork exploration on its San Luis del Cordero project, and Prospero reported drilling results from its Buenavista project. In Zacatecas, Advance Gold started a phase 2 drilling program at its Tabasquena project. In Jalisco, Evrim announced trench and soil results from its Cuale project.  ON MINING, Starcore reported Q1 2018 results from its San Martin mine in Queretaro. US Antimony announced plans to increase its production of Sb, Au and Ag in Mexico. ON FINANCING, no relevant news. ON RESOURCES AND DEVELOPMENT, In Sonora, SilverCrest and Premier Gold released drilling results from its Las Chispas and Mercedes projects respectively. Aura provided an update at its Aranzazu mine in Zacatecas. Candelaria announced a PEA for its Pinos Gold project in Zacatecas.   McEwen reported that hopes to add 12 years of mine life at its El Gallo Complex in Sinaloa.  ON DEALS AND CORPORATE ISSUES, Evrim and First Majestic agreed to exercise the Ermitaño and Cumobabi option agreements in Sonora. New Gold announced the appointment of its new President and CEO (Cerro San Pedro mine, San Luis Potosi). Levon announced results from its annual general meeting (Cordero project, Chihuahua). Vangold withdrew its submission to acquire the San Carlos property in Guanajuato (El Pinguico mine, Guanajuato).

ON MEXICO ISSUES

  • No relevant news.

ON EXPLORATION

  • Riverside Resources Inc., completed 11 N-S lines for soil sampling which returned strong multi-elements anomalies with Au, Pb, Cu, and other key elements. These results along with previous exploration work have outlined four new target areas on its Cecilia project in Sonora. Target 1 is a 4km long by 300m wide target where previous rock sampling has found up to 2 g/t Au in silicified conglomerates , but the soil anomaly is open in both directions beyond the 4 Km and more than 800m wide. Target 2 is a NE trending Ag, Pb, Au, Zn, Sb, Hg and Cu soil anomaly over 2km long and 600m wide in rock cracks with faults and host veining displaying a series of NW striking feeder dikes. Target 3 is a 1km long by 500m wide Au-Zn with minor Ag, Cu, Pb and Bi soil anomaly associated to a N-S trending fault system intersecting Paleozoic limestones. This target is also along the border edge of a magnetic high reported in a regional government geophysics survey likely associated with Pre Cambrian granitic basement.  Target 4 contains “high-grade gold samples in soils and alteration with jasperoid, silicification, and carbonate veining of the Paleozoic limestone that gives a potential limestone hosted Au with anomalous soil assays of Zn, Pb, Ag and Mn”.
  • Kootenay Silver Inc., announced that its partner Capstone Mining Corp., has commenced an exploration program on its la Mina project in Sonora. The exploration program will consists of detailed mapping and rock chip / stream sediment sampling to generate potential drill targets.
  • Harvest Gold Corporation, reported that Evrim Resources, its JV partner and operator on its Cerro Cascaron project in Chihuahua, has mobilized an advance team to the site to start preparations to drill test the property. The drill program, expected to commence at the end of September, will consist of 3,000 m to test the Cascaron Gold targets and the Cascarita Silver targets.
  • Sable Resources, released drilling results from its Margarita project in Chihuahua. Significant intersections are from hole M-DDH-18-09 with 6.5m of 111 g/t Ag Eq, including 3.5m of 153 g/t Ag; hole M-DDH-18-11 with 11.3m of 252 g/t Ag Eq, including 1.3m of 889 g/t Ag Eq; hole M-DDH-18-12 with 12.7m of 98 g/t Ag Eq, including 1.8m of 244 g/t Ag Eq. Additionally, Sable identified a low-grade stockwork style of mineralization evident in numerous holes. The most significant results are hole M-DDH-18-03 with 44.13m of 50 g/t Ag Eq, including 6.95m of 142 g/t Ag Eq; hole M-DDH-18-07 with 7.6m of 54 g/t Ag Eq, and hole M-DDH-18-12 with 21.35m of 37 g/t Ag Eq. “With the first stage of drilling now complete we will evaluate our results and formulate a plan for stage 2 drilling targeting further extensions of Margarita and the other adjacent parallel veins”.
  • Auxico Resources Canada Inc., reported high-grade sampling results from its Zamora project in Sinaloa. Significant results are 0.80m of 4Kg Ag and 29.2 g/t Au at La Franca claim, 600m southwest of the Campanillas mine along a structure that can be followed by at least 600m along strike. Mineralization consists of breccia-stockwork veining containing galena, sphalerite and possible silver sulphosalts, malachite and chalcopyrite. Other significant results are from Aguamas area where some channel samples returned 0.65m of 6.38 g/t Au and 23 g/t Ag; 0.70m of 14.7 g/t Au and 34 g/t Ag; 0.50m of 3.55 g/t Au and 108.7 g/t Ag; and 1.60m of 6.64 g/t Au and 220 g/t Ag.
  • Gainey Capital Corp., announced a phase 1 exploration program on its Las Margaritas project in Durango. Las Margaritas is a mineralized vein system that extends at least 1.5Km along strike and averages 1-2m in width. The 1st phase exploration program will consists of detailed mapping and sampling with the objective to identify prospective areas to generate the best drill targets.
  • Orex Minerals Inc., commenced an exploration program on its San Luis del Cordero project in Durango, where the company has an option to acquire 100% interest in the property from Exploraciones del Altiplano S.A. de C.V. Mineralization at San Luis del Cordero is characterized by skarn and epithermal vein Ag-Cu-Zn as a result of Tertiary-quartz-feldspar-porphyry intrusions affecting Jurassic and Cretaceous limestones, calcareous sandstones and shales. The project has seen several phases of exploration from different mining companies, including 16,400m drilled in 62 holes in the period 2000-2016. The property contains indicated resources of 662.6K tonnes of 121 g/t Ag, 0.78 % Cu and 1.1 % Zn for a total of 5.1M Oz Ag Eq, and inferred resources of 2, 785,300 tonnes of 144 g/t Ag, 0.75 % Cu and 1.45 % Zn, for a total of 24.4 M Oz Ag Eq.
  • Prospero Silver Corp., reported core drilling results from eleven holes totaling 2, 811m drilled at its Buenavista project in Durango. Mineralization drilled-tested at Buenavista consists of structurally controlled epithermal veins centered on a rhyolite dome complex. “All holes cut anomalous silver mineralization, with a best interval of 1.6m @ 353g/t Ag from 185.6m downhole, within a broader interval of 49m @ 43g/t Ag in hole BVF-18-05”.
  • Advance Gold Corp., started a second phase drilling program at its Tabasquena project in Zacatecas to test the La Tabasquena epithermal vein at a depth of 1,800m. Phase 2 will test below the gold discovery hole of phase 1. It also will test some of the potential feeder type targets and all of the veins below the oxide zone which goes down to an estimated 175 metres below surface.
  • Evrim Resources Corp., announced new trench and soil results from its Cuale project in Jalisco. Highlight results include the trench 2 which was extended from 29.4m to 184.1m with an average grade of 0.85 g/t Au, including 59.1m of 1.79 g/t Au, and including 21.6m of 4.18 g/t Au; Trench 4 , extended from 106.2m to 156.2m with an average grade of 9.57 g/t Au, including 64.6m of 20.85 g/t Au, and including 7.5m of 163.31 g/t Au; and Trench 5 which contains 174m of 0.62 g/t Au, including 70m of 1.16 g/t Au, and including 40m of 1.45 g/t Au. A soil grid with 200 metre spacing outlined a Au anomaly over the entire La Gloria prospect with grades >0.01 g/t Au of 2,300m by 800m with a central corridor of 1,700m by 300m >0.1 g/t Au extending north of the trenched area.  “The soil anomaly at higher elevation correlates with elevated silver, antimony, molybdenum, arsenic and low contents of manganese and zinc.  At lower elevations gold correlates with elevated copper, tellurium, arsenic, bismuth and iron”. “The new trench results expand the La Gloria zone to the northwest and the east with consistent gold mineralization.  Soil sampling indicates the La Gloria system footprint is measurably larger with the potential to host a significant deposit and/or additional mineralized centers within the La Gloria prospect”.   “The soil survey has a distinctive high sulphidation signature centred on a large gold in soil anomaly that is approximately 2,300 metres by 800 metres.  The results indicate a potential major system with significant upside for additional mineralized centers within the La Gloria prospect.”

ON MINING

  • Starcore International Mines Ltd., reported Q21 2018 results from its San Martin mine in Queretaro. Starcore milled 77,400 tonnes of 1.53 g/t Au and 49 g/t Ag to produce 3.3K Oz Au and 72.7K Oz Ag, with an all-in sustaining cost of US$ 1,215 for Eq Oz. Metallurgical recoveries were 88.1% for Au and 59.6% for Ag.
  • US Antimony Corporation, produced 131,184 Lb Sb and 1,244 short tonnes of zeolites in August 2018 and announced plans to increase its production of Sb, Au and Ag in Mexico. At its Wadley mine in San Luis Potosi, the general level will be reactivated by cleaning up the waste to provide access and transportation of the lower grade for the mill. At Sierra Guadalupe in Zacatecas, the Santa Monica drift will be restarted. The ore is primarily sulphides and can be upgraded to 60-70% Sb flotation concentrate at its Puerto Blanco Mill to make antimony tri-sulphide. At the Soyatal district in Queretaro, a buying program will be started to purchase direct shipping ore for its Madero smelter. The construction of the cyanide leach plant for the Los Juarez Au-Ag-Sb should allow pilot testing to commence during Q4 2018. The company also closed an agreement purchase, dismantle and transport an antimony plant from Reynosa, Tamaulipas. When installed, the equipment from the Reynosa plant will increase the capacity of the Madero Smelter in Coahuila to approximately 30,000,000 Lb per year of antimony oxide.

ON FINANCING

  • No relevant news.

 

ON RESOURCES AND DEVELOPMENT

  • SilverCrest Metals Inc., released drilling results from its Las Chispas project in Sonora and expanded the high grade at Babicanora Norte vein. Drill holes have intersected additional high-grade Ag-Au mineralization at Babicanora Norte vein which is located about 300m NE of Babicanora vein and apparently is connected with the Granaditas area which contains multiple veins to the southeast. The most significant results are 1.8 m of 15.11 g/t Au and 1,718 g/t Ag or 2,851 g/t Ag Eq, 1.6 m of 8.96 g/t Au and 1,078 g/t Ag or 1,750 g/t Ag Eq and 1.5 m of 4.22 g/t Au and 687 g/t Ag or 1 Kg Ag Eq. The drilling results of Babicanora Norte vein will be part of the upcoming updated resource which will include 8 of the 30 identified veins in the district.
  • Premier Gold Mines Limited, reported drilling results from the Rey de Oro deposit at its Mercedes mine in Sonora. Highlights results include hole UG-R018-013 which returned 12.64 g/t Au and 240.1 g/t Ag across 29.65 m (TW of 13.5 m), hole UG-R018-015 with 0.41 g/t Au and 3120.0 g/t Ag (91.0 oz/ton) across 1.52 m (TW of 1.06 m), and hole UG-R018-012 with 17.00 g/t Au and 321.0 g/t Ag across 1.1 m (TW of 0.8 m) and 4.47 g/t Au and 138.5 g/t Ag across 8.25 m (TW of 6.1 m). “Underground drilling at Rey de Oro consists of step-out and delineation drilling of this recently developed horizon. This drilling continues to intersect some of the widest vein intercepts on the property and demonstrate the potential to continue to extend the mine life at Mercedes”.
  • Aura Minerals Inc., provided an update at its Aranzazu mine in Zacatecas. Aura has obtained all the necessary permits and initiated the construction of the new tailings disposal system. “The Company expects the Aranzazu mine to achieve commercial production later this year and to achieve the average processing of 2,600 tonnes per day shortly thereafter”.
  • Candelaria Mining Corp., announced a PEA for its Pinos Gold project in Zacatecas. Highlight results from the PEA indicate an after tax net present value (NPV) of US$ 12M using a 5% discount rate, an after tax internal rate return (IRR) of 25%, and a 7 years life of mine with projected gold equivalent ounce (“GEO”) production of 89,000. The PEA includes a mineral resource estimate as of September 13, 2018. Measured resources (Dump) are 85,847 tonnes of 1.6 g/t Au and 83 g/t Ag for a total of 4,444 Oz Au and 229K Oz Ag. Indicated resources are 175,697 tonnes of 3.6 g/t Au and 47 g/t Ag for a total of 20.6K Oz Au and 268K Oz Ag. Inferred resources are 529,267 tonnes of 3.6 g/t Au and 48 g/t Ag for a total of 60.7K Oz Au and 811K Oz Ag. Average recovery for Au and Ag are 90 and 80% respectively. The company plans to have an annual production of 12,700 GEO with an overall average direct cash cost of %US 666 per GEO.
  • McEwen Mining Inc., reported that hopes to add 12 years of mine life at its El Gallo Complex in Sinaloa, combining mineralized sources from five locations that will be developed in two distinct process plant construction phases. McEwen plans to produce 47K Oz Au Eq per year.
  • Bacanora Lithium plc., announced plans to start the mine construction on its Sonora Lithium project in Sonora. $US 420M will be invested in the first phase and is expected to begin to operate in 2020.

ON DEALS AND CORPORATE ISSUES

  • Evrim Resources Corp., and First Majestic Silver Corp., agreed to exercise the Ermitaño and Cumobabi option agreements in Sonora. First Majestic has completed its 100% earn-in for both projects. First Majestic has paid $1.5M in cash to Evrim and has granted a 2% NSR in the case of Ermitaño project and 1.5% NSR in the case of Cumobabi project.
  • New Gold Inc., announced the appointment of its new President and CEO (Cerro San Pedro mine, San Luis Potosi).
  • Levon Resources Ltd., released results from its annual general meeting (Cordero project, Chihuahua).
  • Vangold Mining Corp., withdrew its submission to the TSX Venture Exchange to acquire the San Carlos property in Guanajuato.

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 banded quartz vein in an intermediate sulphidation epithermal project in Zacatecas, 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.

 

 

 

AMERICAS SILVER CORPORATION PROVIDES SECOND QUARTER PRODUCTION AND COST UPDATE  

americas silver reports Q2 2018 result

TORONTO, ONTARIO—July 19, 2018—Americas Silver Corporation (TSX: USA) (NYSE American: USAS) (“Americas Silver” or the “Company”) today announced production and operating cost results for the second quarter of 2018 on a consolidated basis and individually for its Cosalá Operations and Galena Complex. All figures are in U.S. dollars unless otherwise indicated.

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

116 - copia

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.

 

Pan American Silver Provides Update on the Dolores Mine

Pan American Silver Provides Update on the Dolores Mine

VANCOUVERJune 4, 2018 /CNW/ – Pan American Silver Corp. (NASDAQ: PAAS) (TSX: PAAS) (the “Company”) today announces that the security situation on the access roads to the Dolores mine has improved following increased patrol and enforcement by the Mexican authorities. As a result, road transport of diesel fuel, cement and other supplies to the mine has now resumed. The Company will increase the use of its private, secured airstrip to transport people to and from the mine site until the situation normalizes.

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

On the picture above, a banded quartz-barite vein in a prospect in Chihuahua state, Mexico. Photo by Miguel A Heredia.

By Miguel A Heredia

During the 17th week of the year (April 23th to April 29th, 2018), at least 19 press releases were announced by companies working in Mexico, with seven informing on exploration results, six reporting Q1 2018 results, two announcing financing, three communicating deals and corporate issues, and  two reporting on resources & development. ON MEXICO ISSUES, Argonaut has taken legal measures to re-activate its explosive permit at its la Colorada mine in Sonora. ON EXPLORATION, In Sonora, Aztec Minerals & Kootenay presented drilling results from its Cervantes property and Azure reported recoveries and concentrate grades at its Oposura project. In Sinaloa, Goldplay received drill permit for its El Habal project. In Chihuahua, Mammoth announced drilling results from its Tenoriba project.  In Zacatecas, Goldcorp presented drilling results from the Santa Rosa target near its Peñasquito Mine, and signed a LOI with Frisco to explore key regional targets at the Mazapil Valley. Prospero provided its plan work for the remainder of 2018 for its exploration projects in Mexico. ON MINING, Agnico Eagle reported Q1 results on its La India mine in Sonora, and Pinos Altos y Mascota mines in Chihuahua. Goldcorp reported Q1 results from its Peñasquito mine in Zacatecas. Capstone announced Q1 results from its Cozamine mine in Zacatecas. New Gold presented Q1 results from its San Pedro mine in San Luis Potosi. ON FINANCING, Oroco closed a private placement for $900K. First Mexican entered into an arrangement to secure a credit facility loan for up to $10M. ON RESOURCES AND DEVELOPMENT, In Sonora, SilverCrest filed a mineral resource estimate on its Las Chispas project. In Chihuahua, Agnico reported development progress and expansion drilling results on their satellite deposits within its Pinos Altos and Creston mines, as well as at its La India mine in Sonora.  ON DEALS AND CORPORATE ISSUES, Bacanora Lithium announced director changes and the grant of options (Sonora Lithium project, Sonora). Capstone reported voting results from its annual general meeting (Cozamine mine, Zacatecas). Westminster announced VP appointment (El Cobre, Sonora).

ON MEXICO ISSUES

  • Argonaut Gold Inc., reported that the court has rescheduled the hearing pertaining the explosives permit from its la Colorada mine in Sonora to May 16, 2018. The company estimates it has sufficient ore to continue operations until the end of July, however, is taking legal measures to re-activate its explosive permit and re-commence blasting activities as soon as possible.

ON EXPLORATION

  • Aztec Minerals Corp. & Kootenay Silver Inc., reported drilling results from the California target at the center of a gold geochemical anomaly within its Cervantes property. The most significant results are 160m of 0.77 g/t Au, 0.13% Cu, and 3.4 g/t Ag, including 80m of 1.0 g/t Au, 0.11% Cu and 4 g/t Ag.
  • Azure Minerals Limited, reported flotation test results showing significant improvements of recoveries and concentrate grades at its Oposura project. Zinc and lead recoveries of 85.6% and 84% achieve concentrate grades of 57.2% and 61.4% respectively. Silver recovery in the lead concentrate is 67.1% at a concentrate grade of 323.8 g/t Ag. The positive metallurgy has reduced significantly the processing and marketing risk and has enhanced the project potential.
  • Goldplay Exploration Ltd., received a drill permit to carry out a 4,000m drilling program at its El Habal project in Rosario, Sinaloa. The goal of the drilling program is to test low sulphidation epithermal mineralization targets generated by mapping and sampling of shallow underground workings along with a CSMAT geophysical survey.
  • Mammoth Resources Corp., announced drilling results from the Los Carneritos target within its Tenoriba project in Chihuahua. Significant results are 126.8m of 0.47 g/t Au and 7.2 g/t Ag, including 58.2m of 0.73 g/t Au and 4 g/t Ag or 25m of 1.1 g/t Au and 2.7 g/t Ag; and 14.9m of 0.58 g/t Au and 3 g/t Ag. “These diamond drill holes at Los Carneritos extend the strike length of gold mineralization on the property a total of almost four km within a High Sulphidation system with mineralization open at least one km both to the east and west of this four km trend where gold has been sampled on surface”.
  • Goldcorp Inc., presented initial drilling results from the Santa Rosa target near its Peñasquito Mine in Zacatecas. Significant intersections are 164m of 1.06 g/t Au, in disseminated, intrusive-hosted mineralization within dacite porphyry dykes, along with a 22m of 3.46 g/t Au interception of skarn mineralization. “The Santa Rosa system is interpreted as a quartz porphyry complex intruding a contemporaneous volcanic pile underlain by Lower Jurassic to Upper Cretaceous carbonate stratigraphy”. Goldcorp also signed a LOI with Minera Frisco to explore, under a JV agreement, key regional targets in the Mazapil Valley near Peñasquito Mine.
  • Prospero Silver Corp. & Fortuna Silver Inc., provided a plan work for the remainder of 2018 on their different JV exploration projects in Mexico. In Chihuahua, they planned to drill the Bermudez and Trias projects with a program of 1,200m each. In Durango, a 3,450m drilling program will be conducted at their Buenavista project. In Hidalgo, they plan to drill a fourth hole by the end of the year at their Pachuca SE project. All the projects are low sulphidation epithermal style targets, with Buenavista in Durango displaying some characteristics of intermediate sulphidation affinity, like elevated base metals levels at depth in the system.

ON MINING

  • Agnico Eagle Mines Limited., reported results on their Mexican operations. The company processed 1.7M tonnes from its La India mine in Sonora with a grade of 0.74 g/t Au to produce 23K Oz Au at cash cost of $700 USD per Oz Au produced. In Chihuahua, Agnico processed 519 K tonnes and 475K tonnes from their Pinos Altos and Creston mines respectively, with grades of 2.62 g/t Au and 0.67 g/t Au to produce 41.8K Oz Au and 12K Oz Au correspondingly. Total cash cost per Oz Au produced are $758 USD and $865 USD in that order. At Pinos Altos, production is transitioning from open pit to underground mining with a higher cost associated.
  • Goldcorp Inc., reported results from its Peñasquito mine in Zacatecas. On Q1 2018, Goldcorp milled 8.96M tonnes with grades of 0.54 g/t Au, 23.5 g/t Ag, 0.19%Pb and 0.64% Zn to produce 98K Oz Au, 5.2M Oz Ag, 27M Lb Pb and 88.7M Lb Zn, at cash cost of $708 USD per Oz Au produced.
  • Capstone Mining Corp., announced results from its Cozamine mine in Zacatecas. On Q1 2018, Capstone produced 4,285 tonnes of Cu at cash cost of $0.71 USD per Lb Cu produced.
  • New Gold Inc., presented results from its San Pedro mine in San Luis Potosi. On Q1, New Gold produced 4.5K Oz Au and 0.1 M Oz Ag from residual leaching. Cerro San Pedro finished active mining in Q2 2016.

ON FINANCING

  • Oroco Resource Corp., closed a non-brokered private placement for $900K. Net proceeds will be used for exploration expenditures (Santo Tomas, Sinaloa).
  • First Mexican Gold Corp., entered into an arrangement to secure a credit facility loan for up to $10M. The funds will be used to bring into production the Karen Zone within its Guadalupe project in Sonora.

ON RESOURCES AND DEVELOPMENT

  • SilverCrest Metals Inc., filed the mineral resource estimate on its Las Chispas project in Sonora. The Inferred resource estimate encompasses 3.44M tonnes of 3.63 g/t Au and 296 g/t Ag for a total of 401.6K Oz Au and 32.7M Oz Ag contained.
  • Agnico Eagle Mines Limited, announced that the Sinter and Cubiro satellite deposits within its Pinos Altos mine are currently being developed to be mined from underground and a small open pit the first, and from underground the second. Both are expected to commence production in Q4 2018 and Q1 2019 respectively. It also conducted 3,450m of infill drilling on Q1 2018 at its Reyna de Plata deposit to convert inferred resources to indicated mineral resources. Significant results are 22.9m of 2 g/t Au and 53 g/t Ag; 17.7m of 0.9 g/t Au and 12 g/t Ag; and one hole with 9.6m of 1.7 g/t Au and 27 g/t Ag, and 3.6m of 4.2 g/t Au and 144 h/t Ag. At Reyna de Plata, mineralization style is low sulphidation epithermal veins hosting inferred mineral resources of 110 K Oz Au and 3.9M Oz Ag in 5.8M tonnes of 0.59 g/t Au and 21 g/t Ag at open pit depth, as well as 93K Oz Au and 1.4M Oz Ag from 1.2M tonnes of 2.35 g/t Au and 35 g/t Ag at underground depth. At the Madrono Zone, Agnico drilled 5,073m of infill and exploration drilling in 24 holes, within its Creston mine. Significant results are 16.2m of 2.2 g/t Au and 47 g/t Ag, 6.7m of 3.1 g/t Au and 38 g/t Ag, 7.5m of 2.2 g/t Au and 28 g/t Ag, and 7.8m of 1.4 g/t Au and 27 g/t Ag. Madrono hosts underground indicated mineral resources of 56K Oz Au and 863K Oz Ag hosted in 858K tonnes of 2.03 g/t Au and 31.3 g/t Ag, and inferred mineral resources of 144K Oz Au and 2.6M Oz Ag in 1.94M tonnes of 2.31 g/t Au and 41 g/t Ag. In Sonora, Agnico is conducting drilling programs focused on extending near pit mineralization at its La India mine as well as on other near-mine targets. On Q1 2018, the company drilled 6,833 m in 49 holes distributed at El Realito and Chipriona targets. Significant results are 58.5m of 0.6 g/t Au and 21 g/t Ag; 14.1m of 2.4 g/t Au and 3 g/t Ag, including 3.2m of 6.8 g/t Au and 5 g/t Ag; 18m of 0.6 g/t Au and 216 g/t Ag; and 56.3m of 0.9 g/t Au and 34 g/t Ag, including 28.9m of 1.4 g/t Au and 40 g/t Ag.

ON DEALS AND CORPORATE ISSUES

  • Bacanora Lithium plc., announced director changes and grant options (Sonora Lithium project, Sonora).
  • Capstone Mining Corp., reported voting results from its 2018 annual general meeting (Cozamine mine, Zacatecas).
  • Westminster Resources Ltd., announced VP appointment (El Cobre, Sonora).

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

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

030

On the picture above, take geologists to a mining museum, and this is what you get. Geologists Ruben Padilla, Barry Quiroz and Miguel Heredia at El Oro Museum in Estado de Mexico. Photo by Jorge Cirett.

By Jorge Cirett

During the 12th week of the year (March 19th to March 25th, 2018), at least 16 press releases were announced by companies working in Mexico. ON MEXICO ISSUES, a gold nugget weighing 850 grams was found in northern Sonora. ON EXPLORATION, In Sonora, Colibri has begun drilling at El Pilar project; while Azure updated work on its Oposura project releasing new high grade drill results. Kootenay has drilled six of seven holes on one target of its La Cigarra project, other targets to follow. ON MINING, three companies, Primero Mining, Excellon and Sierra Metals presented financial and or production results for the fourth quarter and/or full year 2017. Santacruz Silver completed expansion of milling capacity at Veta Grande in Zacatecas.  ON FINANCING, Evrim received $3 M from the exercise of warrants.  ON RESOURCES AND DEVELOPMENT, Americas Silver presented an updated resource on its San Felipe property in Sonora. Almaden provided an update on work being done on the feasibility study at the Ixtaca project in Puebla. ON DEALS AND CORPORATE ISSUES, Alio Gold is to acquire all shares outstanding of Rye Patch, a company with several properties in USA. Bacanora Minerals extended the timetable for re-domiciling by a few days. Sonoro executed an option agreement on a group of properties adjoining its Cerro Caliche property in Sonora.

ON MEXICO ISSUES

  • A gold nugget weighing 850 grams was found in La Cienega area, south of Pitiquito in Sonora. The nugget was discovered using a metal detector by a local gambusino. Northwest Sonora is known by the presence of orogenic gold style deposits, like La Herradura, Nochebuena, La Choya, San Francisco and El Chanate. This type of ore deposits has produced large gold nuggets, of up to 12 kg in weight, with the most famous specimens coming from the El Boludo, La Cienega and Tajitos gold placers.

ON EXPLORATION

  • Colibri Resource Corp. has begun phase 1 of its 2018 drilling program on its Pilar property in Sonora. The program envisages up to 30 holes to be drilled focusing on modelling and extending the known mineralization of the Main Zone to the northwest and southwest along trend. “To date, Colibri has defined an in-house resource of 700 K tonnes @ 1.9 g/t Au”.
  • Kootenay Silver Inc. informed on advances on the current drill program at its La Cigarra property in Chihuahua. Six holes have been completed, and one more is in progress at La Borracha zone, which is the extension of the structure that hosts La Cigarra resource, and drilling has now tested 1,000 m of strike length beyond the resource. Results will be disclosed once all assays have been received. The next drill target is the newly identified Nogalera gold zone, with 8 holes planned on anomalous mineralization over more than 1,000 m of length. Once Nogalera has been drilled, the 104-Vein on the southern part of La Cigarra resource is to be drill tested.
  • Azure Minerals Ltd. updated on work being done at its Oposura project in Sonora. Drilling along strike of an outcrop carrying up to 59.6% Pb+Zn on the West Zone intersected high grade mineralization over an area of 400 x 400 m. Some of the best combined Pb + Zn intercepts returned 2.4 m @ 15.5%. 7.4 m @ 15.9%, 2.8 m @ 19.0%, 3.7 m @ 15.6%, 3.5 m @ 13.2%, 4.6 m @ 15.0%. To date drilling in the West Zone has comprised 64 holes for 4,936 m, with assay results received for 26 drill holes.

ON MINING

  • Primero Mining Corp. reported financial and operating results for 4Q and full year 2017. Primero commenced a strategic review process that resulted in the sale of the Cerro del Gallo project (Guanajuato) in November 2017, and the entering into an arrangement agreement whereby First Majestic will acquire all issued and outstanding common shares of Primero. At San Dimas in Durango, 21,076 Oz Au and 1.32 M Oz Ag were produced during the fourth quarter. For full year 2017, San Dimas produced 111,376 Oz Au, 3.96 M Oz Ag. A strike at San Dimas in early 2017 stopped work for more than two months, significantly impacting yearly production levels.
  • Excellon Resources Inc. reported financial results for the fourth quarter and full year 2017. During the fourth quarter the Platosa mine in Durango produced 16.1 K tonnes, processing 18 K tonnes @ 424 g/t Ag, 3.8% Pb, 5.8% Zn, with recoveries of 90.3% Ag, 80.0% Pb, 82.2% Zn, to produce 206.4 K Oz Ag, 1.17 M Lb Pb, 1.67 M Lb Zn. For the year 57.2 K tonnes were produced, while milling 55.6 K tonnes @ 456 g/t Ag, 4.4% Pb, 5.7% Zn, with recoveries of 90.5% Ag, 82.1% Pb, 80.1% Zn, producing 668 K Oz Ag, 4.09 M Lb Pb, 4.60 M Lb Zn. During 2017 the optimization plan was completed at the Platosa mine, resulting in dry mining conditions that increased production and lowered the costs. Total cash cost per Ag Oz decreased to $10.38, with an AISC of $21.89. All in sustaining cost was $15.84 per Ag Oz for the fourth quarter and $21.89 per Ag Oz for the year.
  • Santacruz Silver Mining Ltd. informed that expansion of milling capacity at its Veta Grande project to 750 tpd (tonnes per day) has been completed. The mill is currently operating at 450 tpd, and full capacity operations are expected to be achieved early in the second quarter 2018. Santacruz now will focus in the consolidation of underground operations.
  • Sierra Metals Inc. reported fourth quarter and year end 2017 financial results, without separating figures for its operations in Mexico. Production at Bolivar is expected to reach 3,000 tpd in Q1 2018 and 3,500 tpd in the second half of 2018. An update in resources is expected in the coming months. At Cusi production is being ramped up to the 650 tpd Mal Paso mill capacity by Q2 2018. The installation of another mill is expected to take production to 1,200 tpd by 2019. At the end of the period the company had 23.9 M in cash and cash equivalents.

ON FINANCING

  • Evrim Resources Corp. received $3.06 M from the exercise of common share purchase warrants, representing 98% of the warrants issue dated December 16, 2015. As a result, Evrim’s current cash position approximates $5.5 M (Cerro Cascaron, Chihuahua).

ON RESOURCES AND DEVELOPMENT

  • Americas Silver Corp. provided an update on the mineral resource estimate at the San Felipe project in Sonora (optioned from Hochschild in early 2017). Of 342 holed drilled by four companies since 1998, 294 are within La Ventana, San Felipe, Transversales and Las Lamas deposits which host the current resource. The new resource contains 4,685 K tonnes @ 5.4% Zn, 2.5% Pb, 61 g/t Ag in the indicated category and 2,008 K tonnes @ 3.6% Zn, 1.4% Pb, 48 g/t Ag in the inferred category. These resources host 560 M Lb Zn, 256 M Lb Pb, 9.1 M Oz Ag; 158 M Lb Zn, 63 M Lb Pb, 3.1 M Oz Ag respectively.
  • Almaden Minerals Ltd. updated on work related to the feasibility study (FS) at the Ixtaca project in Puebla. Work underway includes a resource model update, metallurgy testwork, engineering design, optimization studies, work to move the Rock Creek processing plant to Ixtaca, construction planning, geotechnical site investigation and water management studies. Almaden is also preparing an environmental impact assessment study (Manifiesto de Impacto Ambiental, or MIA) for Ixtaca.

ON DEALS AND CORPORATE ISSUES

  • Alio Gold Inc. and Rye Patch Corp. entered on an arrangement under which Alio Gold (San Francisco, Sonora; Ana Paula, Guerrero) is to acquire all the outstanding shares of Rye Patch (Florida Canyon, Nevada; Lincoln Hill, Nevada). The offer values Rye Patch outstanding equity at C$128 M. The transaction is expected to close on or about May 25, 2018.
  • Bacanora Minerals Ltd. announced that the proposed timetable for the proposed Re-domicile has been changed to 26 March 2018.
  • Sonoro Metals Corp. executed a formal option agreement with a Tucson, Arizona resident to acquire a 100% interest in the 403.5 ha Rosario group of concessions, adjacent to its Cerro Caliche property in Sonora, thus increasing the land holdings of the project to 1,455 ha. The option agreement entails a total consideration to the vendor of US$1.6 M, payable in escalating cash installments over 72 months, and a 2% NSR which can be bought for US$1 M for each percentage point. The initial US$60 K was paid on execution. Total drilling in the two properties before 2008 is 10,118 m in 101 holes.

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

 

 

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

By Jorge Cirett

During the 10th week of the year (March 5th to March 11th, 2018), at least 24 press releases were announced by companies working in Mexico, and three articles on mining matters in Mexico published by newspapers. ON MEXICO ISSUES, the Fraser Institute released the results of the 2017 survey on Mining Attractiveness by Jurisdiction, with Mexico stagnant at mid table due to low results on taxation regime, labor disruptions and security perception. The Sonora government is supporting the mining industry with the signature of a collaboration agreement with the Economy Bureau. The governors of Chihuahua and Oaxaca attended the PDAC in Toronto for promoting mining investment in their respective states. Other delegations present were from Durango and Zacatecas. ON EXPLORATION, In Sonora Riverside announced a bigger land position at its Cecilia project; Oceanus has mapped the favorable El Tigre Formation rock package for 5 km in strike length at its El Tigre property; Mexus Gold updated on exploration of its 8 Hermanos property; Millrock disclosed interesting low grade drilling results from its Navidad property; Azure has started the second drill campaign at its Sara Alicia Au-Co property. In Chihuahua VVC Minerals received the permit for drilling its Samalayuca property; Radius updated on exploration at its Amalia project. In Guanajuato, Vangold started the phase two of drilling at its Pinguico property. ON MINING, two companies, Americas Silver and Santacruz Silver presented production results for the quarter and/or full year 2017. Magellan Gold announced the restart of its mill in Nayarit.  ON FINANCING, Canuc Resources closed a $1.1 M financing round, Colibri closed the first tranche of a financing round netting $1.08 M. Vangold announced the opening of a financing round for raising up to $2 M. Santacruz Silver obtained a US$2.3 M private loan. Starcore closed a financing round for $125 K with an insider.  ON RESOURCES AND DEVELOPMENT, Levon Resources released an updated mineral resource report for its Cordero project in Chihuahua. Alio Gold provided an exploration update at its Ana Paula project in Guerrero. Leagold updated its mineral resource estimate for its Los Filos mine and the Bermejal Underground deposits in Guerrero. ON DEALS AND CORPORATE ISSUES, Sonoro Metals acted on the LOI to option a group of properties adjacent to its Cerro Caliche property in Sonora. Autlan is to acquire all shares from Metallorum (it already controls an undisclosed percentage), which owns the Lluvia de Oro mine in Sonora.

ON MEXICO ISSUES

  • Mexico stays about the same on the investment attractiveness index published yearly by the Fraser Institute. Mexico fell to the 50 (of 91 jurisdictions surveyed) position from the 44 (of 104) on the 2016 survey, affected mainly by low rankings in security, taxation regime and labor regulations/work disruptions. In 2014 Mexico was on the 24 position of 122 surveyed. Chile ranked 8 and Peru 19 on the 2017 survey. Below is the table for the perception of the taxation regime (which presents the effect of the recently imposed royalties as a hard fact). The security perception ranking, along the other rankings can be seen at the following link: (https://www.fraserinstitute.org/sites/default/files/survey-of-mining-companies-2017.pdf).Taxation Regime Index, Fraser Institute 20171
  • The Sonora government is supporting the development of the mining industry in the state with the signature of a collaboration agreement with the Economy Bureau (Secretaría de Economía). The agreement looks to promote investment, better technical assessments, training and cut red tape. The mining industry represents 17% of the state’s GDP, with the state providing 31% of Mexico’s mining production. Sonora’s Governor Claudia Pavlovich has been pushing a proposal on the Deputies Chamber to install a 100% deduction of exploration expenses on the year these are incurred.
  • The governors of Chihuahua and Oaxaca attended the PDAC in Toronto Canada to promote mining investment on their states. Both Javier Corral (Chihuahua) and Alejandro Murat (Oaxaca) attended the Mexico Mining Day 2018 and had personal interviews with companies doing business in their states or trying to set a foothold there. Other delegations present were from Durango and Zacatecas.

ON EXPLORATION

  • VVC Minerals Corp. received the permit for drilling at its Samalayuca property in Chihuahua. The SEMARNAT permit approved 22 new drilling sites, in addition to 13 already approved. The drilling is to focus on La Gloria Extension area, La Concha pit area, La Zorra zone and the Julianna, Suerte and Trinidad areas. The completed and proposed drilling cover 7 Km of strike length on the property.
  • Vangold Mining Corp. concludes phase 1 drilling, starts phase 2 drilling at El Pinguico property in Guanajuato. Vangold completed five of 15 drill holes targeting the underground stockpiles (backfill) on the El Pinguico vein, with poor recoveries and grades. While a better method of assessing these stockpiles is researched, the company has initiated the phase 2 drilling campaign targeting the lower El Pinguico vein extension below the old workings, 300 m below the surface.
  • Riverside Resources Inc. announced that it has been granted the mineral rights to the Cecilia 1 concession, increasing the ground held on the Cecilia project in Sonora to almost 6,000 hectares. Epithermal Au-Ag mineralization is associated to a rhyolite flow-dome setting.
  • Oceanus Resources Corp. updated on its exploration efforts on El Tigre property in Sonora. The El Tigre Formation is the rock package that host the historic El Tigre mine, which operated from 1903 to 1938, producing 353 K Oz Au and 67.4 M Oz Ag; the favorable El Tigre Formation has been now traced for 5 km.
  • Mexus Gold US. presented an update on exploration of its 8 Hermanos and Scorpio_370 claims in Sonora. Mexus controls 2,800 hectares in an area with sedimentary rocks intruded by granodiorite, dioritic dikes and a diorite porphyry, all covered in turn by Tertiary volcanic tuffs and flows. Three samples from the 370 concession returned 9 g/t Au, 41 g/t Ag; 47 g/t Au, 33 g/t Ag; 10 g/t Au, 8 g/t Ag. Porphyry copper potential is highlighted on a report (no alteration is described).
  • Radius Gold Inc. provided an update on exploration at the Amalia project in Chihuahua. The 10,380 ha project has Au-Ag mineralization defined over 2 km of strike length in high level chalcedonic veins, stockworks and breccias and deeper level structurally controlled higher grade mineralization. “Radius continues to advance the Amalia project and is currently permitting drilling and bulldozer trenching.” Recent channel sampling returned 4.5 m @ 10.3 g/t Au, 202 g/t Ag, extending the total strike length of the high-level epithermal mineralization of the Campamento zone to 500 m.
  • Millrock Resources Inc. reported on first phase core drilling at its La Navidad project in Sonora, funded by earn-in partner Centerra Gold. In total, 2,130 m were drilled in 12 holes, with several anomalous intersections, like: 17.2 m @ 0.75 g/t Au (including 1 m @ 9.05 g/t Au); 15.65 m @ 0.60 g/t Au; 18.30 m @ 0.33 g/t Au; 18.0 m @ 0.12 g/t Au; 6.00 m @ 0.26 g/t Au; 5.90 m @ 0.45 g/t Au; 57.0 m @ 0.29 g/t Au; 16.6 m @ 0.35 g/t Au.
  • Azure Minerals Ltd. announced the start of the second drilling campaign on its Sara Alicia project in Sonora. “The Sara Alicia mineralised zone consists of carbonate rocks intruded by a porphyry. This intrusive event caused strong alteration and mineralising reactions in the limestones to form a skarn body which hosts massive and semi-massive sulphides containing the cobalt and gold mineralisation”. The first phase of this drilling campaign is to comprise 1,000 m in 10-12 holes, targeting along-strike and down-dip extensions. The second phase is planned to complete a 50 x 50 m drill pattern over the mineralized body.

ON MINING

  • Americas Silver Corp. reported 4Q and year-end financial results for 2017, including some figures from its operations in Mexico. The San Rafael mine in Sinaloa declared commercial production on December 19, 2017, and was constructed for $16.3 M, 32% lower than the initial project guidance. For 2018 the company plans to produce 1.6 to 2.0 M Oz Ag and 7.2 to 8.0 M Oz AgEq. Cash balance at the end of December was $9.3 M, with net working capital of $11.8 M.
  • Santacruz Silver Mining Ltd. reported operating results for the fourth quarter and full year 2017. Santacruz produced 865.4 K Oz AgEq during the year, including 139.7 K Oz AgEq during the fourth quarter. At Veta Grande in Zacatecas 102.1 K tonnes were milled @ 100 g/t Ag (127 g/t AgEq) and Ag recovery of 61% to produce 201.3 K Oz Ag, 424 Oz Au, 466 tonnes Pb, 803 tonnes Zn during the year. At Rosario in San Luis Potosi, 78.9 K tonnes were milled @ 52 g/t Ag (205 g/t AgEq) and a recovery of 85% Ag to produce 112.6 K Oz Ag, 1,007 Oz Au, 157 tonnes Pb, 1,489 tonnes Zn during the same period.
  • Magellan Gold Corp. announced it has rehired employees and is restarting its 100% owned SDA mill in Nayarit. Operations are initially to reprocess tailing located at the site, with recovery of precious metals expected to defray holding costs of the mill while new ore sources are acquired. The mill last operated in November 2017 and processed third-party ore on a toll basis.

ON FINANCING

  • Canuc Resources Corp. closed a non-brokered private placement financing with gross proceeds of $1.1 M (San Javier, Sonora).
  • Colibri Resource Corp. has closed an over-subscribed first tranche on its previously announced $1 M financing, raising gross proceeds of $1.077 M. Total gross proceeds to be raised between the two tranches is expected to be $1.2 M (Pilar, Sonora).
  • Vangold Mining Corp. announced a non-brokered private placement financing to raise up to $2 M, and fund the phase 2 drill program targeting the lower El Pinguico vein extension, and general working capital.
  • Santacruz Silver Mining Ltd. has arranged a loan from a private Bolivian mining company, for US$2.3 M. The loan bears interest at 9% per annum, is repayable July 1st, 2018, and is unsecured (Veta Grande, Zacatecas; Rosario, San Luis Potosi).
  • Starcore International Mines Ltd. announced the closing of its non-brokered private placement to an insider, for gross proceeds of $125 K (San Martin, Queretaro).

ON RESOURCES AND DEVELOPMENT

  • Levon Resources Ltd. announced an updated NI-43-101 mineral resource estimate and a 2018 preliminary economic assessment (PEA) for the Cordero project in Chihuahua. The new estimate includes 990 M tonnes of ore @ 12.8 g/t Ag, 0.37% Zn, 0.17% Pb, 0.04 g/t Au as indicated resources and 282.2 M tonnes @ 20.7 g/t Ag, 0.75% Zn, 0.30% Pb, 0.04 g/t Au as inferred resources. The said resource contains 595 M Oz Ag, 1.63 M Oz Au, 12.7 B Lb Zn, 5.6 B Lb Pb in the indicated and inferred categories. The PEA includes an open pit mining rate of 40 K tpd (tonnes per day) to produce mineral concentrate, an annual production of 8 M Oz Ag, 44.8 K tonnes Zn, 31.1 K tonnes Pb, 11,900 Oz Au. Over the 29 year mine life on the PEA, 231 M Oz Ag, 2,863 M Lb Zn, 1,992 M Lb Pb would be produced.” Metallurgy is simple (side by side lead and zinc conventional flotation mills) with 88% overall recoveries after three rounds of bench-scale testing”.
  • Alio Gold Inc. provided an update on exploration of its Ana Paula project in Guerrero. To date 1,300 m of the planned 3,800 m of surface drilling have been completed (two of six diamond drill holes), intersecting breccia mineralization as expected and awaiting assay results. Two new breccia targets were discovered by mapping within 1.5 km of the limit of the proposed pit, showing magmatic and hydrothermal breccia mineralization with traces of pyrite and arsenopyrite.
  • Leagold Mining Corp. has filed a NI-43-101 technical report for the Los Filos mine in Guerrero. For Los Filos and Bermejal Underground deposits, measured and indicated resources amount to 13.53 M Oz Au, while inferred resources stand at 6.28 M Oz Au (Almost 20 million ounces of gold!).  Los Filos Resources1Los Filos Resources1 - copia

ON DEALS AND CORPORATE ISSUES

  • Sonoro Metals Corp. has executed on the letter of intent (LOI) of an option agreement on the Rosario group of properties in Sonora. The Rosario concessions are adjacent to Sonoro’s Cerro Caliche property, covering 403.5 hectares, thereby increasing Sonoro’s land holdings in the area to 1,455 hectares. Sonoro is to acquire 100% interest on the property by paying the vendor (a Tucson resident) US$1.6 M payable in escalating cash installments over 72 months, with the initial installment of US$60 K payable on execution. The vendor is to retain 2% NSR, same that can be bought by Sonoro by US1 M for each one percent.
  • Compañía Minera Autlán SAB de CV. is to acquire all the shares of Metallorum Holding, which owns the Lluvia de Oro mine in Sonora. The company is to invest US$25 M in the next three years to increase its manganese and ferroalloys production capacity.

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 below, beautiful quartz vein with bladed calcite pseudomorphs at the museum of El Oro mining district in Estado de Mexico.

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