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La Escondida Gold-Silver Project (Sonora, Mexico) Presented to Meus Exploracion S.A. de N.V by Michel Gauthier Gardin Inc.

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Presentation on theme: "La Escondida Gold-Silver Project (Sonora, Mexico) Presented to Meus Exploracion S.A. de N.V by Michel Gauthier Gardin Inc."— Presentation transcript:

1 La Escondida Gold-Silver Project (Sonora, Mexico) Presented to Meus Exploracion S.A. de N.V by Michel Gauthier Gardin Inc.

2 (From Groves, D.I., Goldfarb, R.J., Gebre-Mariam, H., Hagemann, S.G., and Robert, F., Orogenic gold deposits- A proposed classification in the context of their crustal distribution and relationship to other gold deposit type: Ore geology Reviews, v. 13, 7-27). La Escondida, Cumeral and Cerro Blanco: Three gold-silver projects in different tectonic settings

3 Gardin Inc. An orogenic gold-silver deposit La Escondida (Sonora, Mexico)

4 Gardin Inc. What is the difference between an orogenic (epizonal) gold- silver deposit and an epithermal deposit gold silver deposit? (From Groves, D.I., Goldfarb, R.J., Gebre-Mariam, H., Hagemann, S.G., and Robert, F., Orogenic gold deposits- A proposed classification in the context of their crustal distribution and relationship to other gold deposit type: Ore geology Reviews, v. 13, 7-27). Does’it really matter? Yes, for planning an exploration strategy!

5 Gardin Inc. Escondida: an orogenic (epizonal) Au-Ag-Sb deposit Jamesonite (Pb 4 FeSb 6 S 14 ): The lead mineral at Escondida which indicates a characteristic Au-Sb epizonal orogenic metallic association

6 Gardin Inc. Escondida: typical orogenic epizonal ore texture

7 Obviously a compressional tectonic setting

8 Saddle reef Western end of La Abundancia vein

9 Close up on reverse fault Western end of La Abundancia vein

10 Stratabound veining Western end of La Abundancia vein

11 Stratabound veining Eastern end of La Generosa vein

12

13 Another type of target: Gold-bearing quartz veinlets stockwork in competent gabbro hosted by incompetent mudslates

14 Kalgoorlie (Australia): A world-class orogenic gold deposit in such competent gabbro


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