La Colorada Skarn es un amplio depósito polimetálico que contiene plata descubierto en 2018 por Pan American mediante exploración brownfield. La zona mineralizada se ubica entre 800 y 2,000 metros debajo de la superficie de la propiedad La Colorada.

La Evaluación Económica Preliminar (“PEA”) actualmente prevé un método de minería en cuevas subterráneas a subnivel de 50.000 toneladas por día, un plan de procesamiento de flotación selectiva convencional de zinc y plomo y una instalación de relaves de pila seca.*

*Por favor consulte el Informe técnico NI 43 101 de La Colorada con fecha de vigencia del 18 de diciembre de 2023 para obtener más detalles. Las cifras se basan en el promedio de los primeros 10 años.

  • Propiedad
    100%
  • Productos
    Zinc, Plata, Plomo
  • Tipo de mina
    Subterránea

Proyecto de exploración avanzada

265.4
Mt
Estimación de recursos minerales indicados*

61.7
Mt
Estimación de recursos minerales inferidos*

17.2
Moz
Producción potencial anual de plata*

50,000
TPD
Promedio de producción de la planta

Información técnica y rescursos

Nombre y cantidad Grado Contenido de metal
Nombre Toneladas
(Tm)
Ag
(g/t)
Pb
(%)
Zn
(%)
Ag
(Moz)
Pb
(Mt)
Zn
(Mt)
Recursos indicados265.4361.372.853093.67.6
Recursos inferidos61.7300.952.55590.61.6

Por favor consulte las notas de la estimación de recursos minerales para obtener información y supuestos importantes sobre la estimación de recursos minerales.

Resultados del Estudio Técnico

El 18 de diciembre de 2023, Pan American anunció la Evaluación Económica Preliminar del proyecto La Colorada Skarn. A continuación, se proporcionan el vídeo y la presentación que acompañaron la conferencia telefónica para el anuncio. Por favor consulte el Informe técnico NI 43 101 de La Colorada con fecha de vigencia del 18 de diciembre de 2023 para obtener más detalles.

* Notas:

  1. The effective date of the mineral resources estimate is June 30, 2024.
  2. Estimation and reporting of mineral resources were carried out in accordance with Canadian Institute of Mining, Metallurgy and Petroleum (“CIM”) guidelines.
  3. Mineral resources have been classified into indicated and inferred confidence categories.
  4. Mineral resources have reasonable prospects for eventual economic extraction demonstrating sufficient spatial continuity of mineralization constrained within a potentially mineable shape. Mineral resources that are not mineral reserves do not have demonstrated economic viability. No mineral reserves are reported at this time for the La Colorada Skarn project.
  5. Prices used to report mineral resources were: $22 per ounce of silver, $2,800 per tonne of zinc and $2,200 per tonne of lead.
  6. An estimated NSR (in US$/t) was calculated using metallurgical recoveries of 84.9% Ag, 84.3% Pb and 93.7% Zn with mineral concentrate qualities of 61% Pb in lead concentrate and 59% Zn in zinc concentrate, obtained from metallurgical testing. Estimates for transport, payability and refining/selling costs, based on experience and long-term views of the marketing, treatment and refining of these types of mineral concentrates, were included.
  7. Reasonable prospects for eventual economic extraction were assessed by determining the total in-situ tonnes and metal grades constrained inside volumes that are based on a SLC mining method considering operating and sustaining capital cost estimates of $45/t. To determine the constraining SLC shapes an initial elevated cutoff value of $50/t NSR was applied.  Then geotechnical, geometry and caving rules were applied to ensure practical mining shapes and sequences were achieved. The resulting constraining shapes were then considered to be practical mining outlines. The tonnes and grades are inclusive of the must-take low grade material within the volume. No other mining recovery, ring recovery, dilution or mineral losses have been applied.
  8. This mineral resource estimate was prepared under the supervision of, or was reviewed by, Christopher Emerson, FAusIMM, Vice President Exploration and Geology, who is a Qualified Person as that term is defined in NI 43-101.
  9. Grades are shown as contained metal before mill recoveries are applied. The Company has undertaken a verification process with respect to the data disclosed in this news release.
  10. A total of 376 diamond drill holes with a total length of 314,930 metres were used in the geological interpretation and resource estimate. Several old historic drill holes were included in the modeling. Drilling of the La Colorada Skarn deposit has been completed from both surface and underground drill platforms.
  11. All drill hole samples used in the mineral resource estimate have been previously reported  in news releases dated October 23, 2018, February 21, 2019, May 8, 2019, August 1, 2019, October 30, 2019,  February 13, 2020, August 4, 2020, May 12, 2021, November 10, 2021, February 24, 2022, May 9, 2022, November 1, 2022, May 2, 2023, December 5, 2023, and April 7, 2024.