 | | Report (issue) | | SURVEY MINERAL OCCURRENCES OF THE GUIANA SHIELD, VENEZUELA by Gary B. Sidder1 Open-File Report 90-16 1990...Principal mining districts, mines, and mineral occurrences in the Guiana Shield, Venezuela.............27 Mineral occurrences of the Guiana Shield, Venezuela.... in pocket INTRODUCTION The U.S. Geological...of Venezuela. This text accompanies the map "Mineral Occurrences of the Guiana Shield, Venezuela" (Plate...resource assessment and exploration program. Venezuela currently produces three metallic minerals (gold |  | | Report (volume) | | labyrinth on summit platform of Cerro Roraima, Venezuela. The pervasively cross stratified quartzose of...Docs. no. : 119.3:2124 1. Geology Venezuela. 2. Minerals Venezuela. 3. Guayana Shield. I. Sidder, Gary...Guayana Shield, Estado Bolivar and Estado Amazonas, Venezuela By Jeffrey C. Wynn, Gary B. Sidder, Floyd Gray...Geologic Maps of the Bochinche Mining District, Estado Bolivar, Venezuela By Jeffrey C. Wynn, Anne E. McCafferty...Exploration Geofisica en el Area de Bochinchito, Estado Bolivar, Venezuela (Geophysical Exploration in |  | Voute, F., Hagemann, S. G., Evans, N. J., Villanes, C. (2019) Sulfur isotopes, trace element, and textural analyses of pyrite, arsenopyrite and base metal sulfides associated with gold mineralization in the Pataz-Parcoy district, Peru: implication for paragenesis, fluid source, and gold deposition mechanisms. Mineralium Deposita, 54 (7) 1077-1100 doi:10.1007/s00126-018-0857-6 | Journal (article/letter/editorial) | | associated with gold mineralization in the Pataz-Parcoy district, Peru: implication for paragenesis, fluid source...Nature 2019 Abstract In the Pataz-Parcoy district, current mining activity is focused on the mesothermal...mineralization processes occurring in the Pataz-Parcoy district. Contrasting with the classical two-stage ore...sequence previously proposed for the Pataz-Parcoy district, we suggest a revised paragenetic sequence, i...Batholith-hosted gold mineralization in the Pataz-Parcoy district exhibits spectacular sulfide-rich veins up to |  | | 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 |  | | Report (issue) | | n ic s te on ne s r ra k L i ne am bh t el rr f grb sh rm 0.706 d la n er sr lini a...exaggeration 0 Staurolite-kyanite isograd S2 lt el rc u P hr us t fa ul t EXOTIC TO NORTH AMERICA...slab f ail u re p lu to n s lit volcanic cover el dg LEWIS sh fe l ce ur ba BM-W OR OFI NO SZ...r e ek of a Columbia Triangle rz o sh ne el el l Canadian Segment e BM alt ea ay sh en...5 M a Cl ar n Y s Ab or aka P a c C nt Ti el n wy o r m r a scad e v olca N A e i c n |
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