Mining

Mexico’s Best Drilling Intercepts, Second Week of April 2026

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Two companies announced results from drilling campaigns in Mexico during the week. Included in the table below are also the intervals from drilling at Cosalá by Americas Gold Silver, same that were published the previous week and omitted in the respective compilation.

Heliostar Metals presented results from six holes on the Expansion Zone below the High Grade Panel at its Ana Paula project in Guerrero, where the company has completed 28,318 m in 84 holes during its 2025-2026 drill campaign. Ana Paula is within the Guerrero Gold Belt, which is characterized by gold bearing skarns. At the project mineralization has been described to be mainly in a sulfide rich breccia, replacement bodies and minor skarn bodies, with a late epithermal overprint. The present press release states “We interpret Ana Paula to be higher in the same geological setting as its large neighbours in the Guerrero Gold Belt… Mineralization at Ana Paula occurs as disseminations or vein stockworks with variable controls including rock porosity, lithology and fault networks”.

Mithril Silver and Gold presented results from drilling on Targets 3 and 5 at its Copalquín project in Durango. High-grade gold-silver mineralization is hosted by low sulfidation epithermal mineralization in volcanic rocks of the Sierra Madre, although in narrow veins in the present release.

Americas Gold and Silver released results from resource definition and exploration drilling at its Cosalá mine in Sinaloa. The program is focusing on upgrading resource classifications on the UZ and Zone 120 deposits and exploration of the El Alacrán discovery zone.

Mina Santa Fe en Sinaloa: Lo que se sabe del rescate de los cuatro mineros atrapados tras el derrumbe

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María Fernanda Sosa Santiago

Publicado: 08.04.2026

A 13 días del derrumbe en la mina Santa Fe, en el municipio de El Rosario, Sinaloa, las labores de rescate continúan en medio de condiciones extremas. Este miércoles 8 de abril, autoridades reportaron el rescate con vida del segundo minero localizado y confirmaron el hallazgo sin vida de un tercer trabajador, mientras persiste la búsqueda del último minero que permanece atrapado.

El accidente ocurrió el pasado 25 de marzo, cuando colapsó una presa de jales al interior del yacimiento, lo que provocó la irrupción de agua y lodo en las galerías subterráneas. De los 25 trabajadores que se encontraban en la mina, 21 lograron salir, pero cuatro quedaron atrapados.

Desde entonces, el operativo se convirtió en una carrera contra el tiempo y las condiciones adversas: inundaciones, visibilidad nula y túneles convertidos en ríos subterráneos.

Más de 300 rescatistas y un operativo contra el tiempo


El rescate ha movilizado a más de 300 elementos, entre personal de las Fuerzas Armadas, buzos especializados y brigadas de Protección Civil. Las labores han requerido bombeo constante de agua,así como el reforzamiento de estructuras para avanzar en las galerías.

Cuatro días después del derrumbe, los equipos habían logrado avanzar cerca de 1.5 kilómetros dentro de la mina, aunque las condiciones complicaron el acceso a las zonas más profundas, donde se estimaba la ubicación de los trabajadores.

El trabajador logró resguardarse en un punto elevado dentro de la mina tras detectar el ingreso de lodo. Fue trasladado al Hospital General de Mazatlán, donde fue dado de alta horas después, con un cuadro de deshidratación leve.

Segundo minero localizado con vida


El segundo sobreviviente, Francisco Zapata Nájera, de 42 años, fue localizado el 7 de abril a unos 300 metros de profundidad, tras más de 300 horas de labores ininterrumpidas.

Nájera fue finalmente rescatado la mañana de este miércoles 8 de abril y recibió atención médica inmediata por parte de paramédicos en la zona de operaciones. Posteriormente, fue trasladado en un helicóptero de la Fuerza Aérea Mexicana al Hospital General de Mazatlán, donde será atendido por especialistas.

Puede leer el artículo completo en la fuente: https://www.eleconomista.com.mx/politica/mina-santa-fe-sinaloa-rescate-cuatro-mineros-atrapados-derrumbe-20260408-807818.html

Mexico’s Best Copper Drilling Intercepts, First Quarter 2026

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Eight companies released copper results from drilling programs in Mexico during the first quarter of 2026. The best copper intercept is from Luca Mining’s drilling at Campo Morado in Guerrero, with 135.7 m averaging 0.88% Cu. The underground diamond drilling results are from the Largo Norte Zone, near current mining operations in this volcanogenic massive sulfides deposit (VMS).

For a short table like this one it is striking the diversity of mineralization styles present. The most common deposit type is intermediate sulfidation epithermal, of which there are three examples at the lower end: Tahuehueto, La Colorada (Zacatecas) and Alamos Silver. Mineralization at La Huerta is described as of iron-oxide-copper-gold (IOCG) affinity, Cerro Las Minitas presents skarn and carbonate replacement mineralization, whereas Adelita can be defined as a skarn distal to a porphyry copper system, and Dios Padre as a strongly zoned Au-Cu-Ag breccia related to a porphyry copper system.  

#Mexico #Mining #Exploration #Drilling Copper

Mexico’s Best Silver Drilling Intercepts, First Quarter 2026

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Nineteen companies released silver results from twenty drilling programs in Mexico during the first quarter of 2026. The highest silver intercept is from Luca Mining’s Campo Morado project in Guerrero, with 135.7 m averaging 77 gpt Ag. 1,833 gpt Ag, including a 0.55 m subinterval just over 7,500 gpt Ag. The underground diamond drilling campaign results are from the Largo Norte Zone, near current mining operations in this volcanogenic massive sulfides deposit (VMS).

Eighty percent of the projects in this table correspond either to intermediate or low sulfidation epithermal mineralization systems. The more numerous are those of intermediate sulfidation affinity, including La Colorada (Zacatecas), Alamos Silver, Cusi, Columba, La Preciosa, San Acacio, Las Coloradas, San Agustín and Tahuehueto. Intermediate sulfidation but probably distal to a porphyry copper system is Gran Pilar, in Sonora. Cruz de Plata presents both intermediate sulfidation and low sulfidation discrete zones of mineralization. Low sulfidation epithermal systems in the list comprise Yoquivo, La Virginia, Claudia and Copalquín, while Panuco present mainly low sulfidation mineralization with some zones of intermediate sulfidation affinity.

The remaining entries are lone examples of their mineralization styles: Campo Morado, at the top of the table, is a volcanogenic massive sulfides (VMS) deposit, Cerro Las Minitas presents skarn and carbonate replacement (CRD) mineralization, Adelita is a skarn distal to a porphyry copper system and Dios Padre a strongly zoned Au-Cu-Ag breccia related to a porphyry copper system.

Mexico’s Best Gold Drilling Intercepts, First Quarter 2026

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Twenty one companies released results from drilling programs in Mexico during the first quarter of 2026. The highest gold intercept was at Heliostar’s Ana Paula project in Guerrero, with more than 55 m averaging 9.71 gpt Au, including a 10.9 m subinterval over 38 gpt Au. Ana Paula, which is part of the Guerrero Gold Belt, presents skarn and replacement mineralization with significant gold in sulfide rich breccias, with an uncommon late epithermal overprint. Other projects displaying skarn mineralization include Adelita in Sonora and Cerro Las Minitas in Durango. The only volcanogenic massive sulfides (VMS) deposit in the list is Campo Morado, in Guerrero, which attained a well-deserved second place with its long multigram gold intervals.

Epithermal systems represent 70 percent of the entries in the table below. High sulfidation deposits are the least numerous within the epithermal cohort in Mexico, but when economic, tend to be reasonably big and present in clusters. The three deposits here: Halcón, Cerro Pelón and Puerto del Aire (PDA) are in the Mulatos District in Sonora, and within the six top positions in the table. Intermediate sulfidation epithermal deposits are the most numerous, although more common in the lower part of the table, and include Tahuehueto, La Colorada (Zacatecas), Cusi, La Preciosa, San Acacio, Alamos Silver and Las Coloradas. Low sulfidation epithermal deposits include La Virginia, Yoquivo, Copalquín and Claudia. Cruz de Plata presents discrete intermediate and low sulfidation mineralization, while Panuco is dominated by low sulfidation mineralization but presents locally intermediate sulfidation characteristics.

Orogenic gold deposits are represented by EP (El Plomo) and La Unión, (proposed here) in Sonora. Finally, Dios Padre, also in Sonora, is a strongly zoned breccia distal to a porphyry copper system.

Summarizing, seventeen of the twenty-four projects on the list are epithermal systems, three present some type of skarn mineralization, two show orogenic gold style characteristics, one is a breccia related to a porphyry copper system and one, the top of the list, is a volcanogenic massive sulfides deposit.