 | | Report (volume) | | Quadrangle, Eastern Guayana Shield, Bolfvar State, Venezuela U.S. GEOLOGICAL SURVEY BULLETIN 1960 Mineral...Quadrangle, Eastern Guayana Shield, Bolfvar State, Venezuela By JEFFREY C. WYNN and GARY B. SIDDER U.S. GEOLOGICAL...Quadrangle, Eastern Guayana Shield, Bolivar State, Venezuela I by Jeffrey C. Wynn and Gary B. Sidder. p. em...Mines and mineral resources-Venezuela-Bolivar (State) 2. Geology-Venezuela-Bolfvar (State) I. Sidder,...Title. Ill. Title: Guayana Shield, Bolivar State, Venezuela. IV. Series. QE75.B9 no. 1960 [TN54] 557.3 s-dc20 |  | 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 (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 |  | | 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 |  | Pokrovski, Gleb S., Kokh, Maria A., Proux, Olivier, Hazemann, Jean-Louis, Bazarkina, Elena F., Testemale, Denis, Escoda, Céline, Boiron, Marie-Christine, Blanchard, Marc, Aigouy, Thierry, Gouy, Sophie, de Parseval, Philippe, Thibaut, Michel (2019) The nature and partitioning of invisible gold in the pyrite-fluid system. Ore Geology Reviews, 109. 545-563 doi:10.1016/j.oregeorev.2019.04.024 | Journal (article/letter/editorial) | | in aqueous solution were recently reported in siderite-to-pyrite replacement experiments at 200°C with...Gold-bearing As-rich pyrite and arsenopyrite from the El Valle gold deposit, Asturias, northwestern Spain...hydrothermal fluid and pyrite during experimental siderite replacement. Chem. Geol. 500, 136-147. Large,...Chemistry of Gold Extraction. 2nd edition, Society for Mining, Metallurgy, and Exploration, Inc. Mikhlin, Y....implications for gold mineralization at the El Callao mining district, Venezuela. Econ. Geol. 109, 457–486. Widler |
|
