La Escondida Gold-Silver Project

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Presentation transcript:

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

La Escondida, Cumeral and Cerro Blanco: Three gold-silver projects in different tectonic settings (From Groves, D.I., Goldfarb, R.J., Gebre-Mariam, H., Hagemann, S.G., and Robert, F., 1998. 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). Gardin Inc.

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

Does’it really matter? Yes, for planning an exploration strategy! What is the difference between an orogenic (epizonal) gold-silver deposit and an epithermal deposit gold silver deposit? Does’it really matter? Yes, for planning an exploration strategy! (From Groves, D.I., Goldfarb, R.J., Gebre-Mariam, H., Hagemann, S.G., and Robert, F., 1998. 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). Gardin Inc.

Escondida: an orogenic (epizonal) Au-Ag-Sb deposit Jamesonite (Pb4FeSb6S14 ): The lead mineral at Escondida which indicates a characteristic Au-Sb epizonal orogenic metallic association Gardin Inc.

Escondida: typical orogenic epizonal ore texture Gardin Inc.

Obviously a compressional tectonic setting

Saddle reef Western end of La Abundancia vein

Close up on reverse fault Western end of La Abundancia vein

Stratabound veining Western end of La Abundancia vein

Stratabound veining Eastern end of La Generosa vein

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

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