| | Journal (article/letter/editorial) | com/locate/precamres The Choco 10 gold deposit (El Callao, Bolivar State, Venezuela): Petrography, geochemistry and U–Pb...June 2014 Available online 7 July 2014 Keywords: El Callao Choco 10 gold deposit Petrography Hydrothermal...Shield a b s t r a c t Located in the El Callao Mining District (Bolivar State), Choco 10 is one of the...the most important gold deposits in Venezuela. The deposit occurs in the greenstone belt of the Pastora...composed of two different formations. The lower El Callao Formation is composed of a Metabasalt Unit, mostly | | | Report (issue) | -Soviet research on mineral deposits in the Noril'sk district is underway. Seventh Annual V.E. McKelvey Forum...represents an important center for the United States mining industry. Such an environment should enhance the...either completed or in progress in Canada, Mexico, Venezuela, Ecuador, Bolivia, Peru, Chile, Argentina, Saudi...North Amethyst vein system and the Creede mining district, Colorado Nora K. Foley and Robert A. Ayuso...exploration Jack Parry, Senior Vice-President, Newmont Mining Corporation and Newmont Gold Criteria for investment |
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