La Escondida Gold-Silver Project (Sonora, Mexico) Presented to Meus Exploracion S.A. de N.V by...
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Transcript of La Escondida Gold-Silver Project (Sonora, Mexico) Presented to Meus Exploracion S.A. de N.V by...
![Page 1: La Escondida Gold-Silver Project (Sonora, Mexico) Presented to Meus Exploracion S.A. de N.V by Michel Gauthier Gardin Inc.](https://reader035.fdocuments.us/reader035/viewer/2022062511/551ad0d45503466b6a8b5437/html5/thumbnails/1.jpg)
La Escondida Gold-Silver Project(Sonora, Mexico)
Presented to Meus Exploracion S.A. de N.V by Michel Gauthier
Gardin Inc.
Gardin Inc.
![Page 2: La Escondida Gold-Silver Project (Sonora, Mexico) Presented to Meus Exploracion S.A. de N.V by Michel Gauthier Gardin Inc.](https://reader035.fdocuments.us/reader035/viewer/2022062511/551ad0d45503466b6a8b5437/html5/thumbnails/2.jpg)
Gardin Inc.
(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).
La Escondida, Cumeral and Cerro Blanco:Three gold-silver projects in different tectonic settings
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Gardin Inc.
An orogenic gold-silver deposit
La Escondida(Sonora, Mexico)
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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., 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).
Does’it really matter? Does’it really matter? Yes, for planning an exploration strategy!Yes, for planning an exploration strategy!
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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
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Gardin Inc.
Escondida: typical orogenic epizonal ore texture
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Obviously a compressional tectonic
setting
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Saddle reef Western end of
La Abundancia vein
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Close up on reverse faultWestern end of
La Abundancia vein
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Stratabound veiningWestern end of
La Abundancia vein
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Stratabound veiningEastern end of
La Generosa vein
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Another type of target:Gold-bearing quartz veinlets stockwork in competent gabbro hosted by incompetent
mudslates
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Kalgoorlie(Australia):
A world-class orogenic gold
deposit in such competent gabbro