| Voicu, Gabriel, Bardoux, Marc, Jebrak, Michel, Crepeau, Robert (1999) Structural, mineralogical and geochemical studies of the Paleoproterozoic Omai gold deposit, Guyana. Economic Geology, 94 (8) 1277-1303 doi:10.2113/gsecongeo.94.8.1277 | Journal (article/letter/editorial) | Studies of the Paleoproterozoie OmaiGoldDeposit, Guyana GABRIELVOICU? Ddpartement desSciences dela Terre...andOmaiGoldMinesLimited, PO. Box12249,Georgetown, Guyana MARCBARDOUX, MICHELJP.BâąI<, Ddpartement desSciences...OmaiGoldMinesLimited, P.O.Box12249,Georgetown, Guyana Abstract The granitoidandgreenstone-hosted Omaigolddeposit...volcanic flows andmetasedimentary rocks (Wenot pit).Six gold-bearing undeformed subhorizontal andsubvertical...goldminingoperation in the Barama-Mazaruni Supergroup of north-central Guyana,a GuianaShieldandoneof the majorgolddeposits | | | Journal (article/letter/editorial) | www.elsevier.com/locate/precamres The Choco 10 gold deposit (El Callao, Bolivar State, Venezuela): Petrography...Choco 10 gold deposit Petrography Hydrothermal ïŹuids and alteration UâPb geochronology Guyana Shield ...(Bolivar State), Choco 10 is one of the most important gold deposits in Venezuela. The deposit occurs in the...lithostratigraphic Province of the South American Guyana Shield. The Choco 10 lithostratigraphy is composed...elements patterns typical of calc-alkaline rocks. Gold has been introduced into the rock sequence in different | | Santos, JoĂŁo Orestes Schneider, Hartmann, LĂ©o Afraneo, Gaudette, Henri Eugene, Groves, David Ian, Mcnaughton, Neal Jesse, Fletcher, Ian Robert (2000) A New Understanding of the Provinces of the Amazon Craton Based on Integration of Field Mapping and U-Pb and Sm-Nd Geochronology. Gondwana Research, 3 (4) 453-488 doi:10.1016/s1342-937x(05)70755-3 | Journal (article/letter/editorial) | ConceiqBo Mine - PA Sai-Cinza Village - PA Rosa de Maio Mine - AM Abacaxis Mine - AM Mamoal Mine - PA Sequeiro...Sequeiro Mine - AM David Mine - PA Santa Rita Mine - PA Tropas River - PA Jamaxim River - PA BR-230 Highway...Maloquinha Intrusive Suite Iriri Group Jardim Our0 Mine - PA Jamaxim River - PA Amana River - AM 32 lr...(1996); vi) French Guyana: Vanderhaeghe et al. (1998); Milesi et al. (1995); vii) Guyana: Gibbs and Olszewski...GU-Omai 5.9 0.1048 33.7 0.1054 349b qz-monzodiorite GU-Omai 4.7 27.0 351 qz-monzodiorite GU-Omai 6.0 | | Le Mignot, Elodie, Reisberg, Laurie, AndrĂ©-Mayer, Anne-Sylvie, Bourassa, Yan, Fontaine, Arnaud, Miller, John (2017) Re-Os Geochronological Evidence for Multiple Paleoproterozoic Gold Events at the Scale of the West African Craton. Economic Geology, 112 (1) 145-168 doi:10.2113/econgeo.112.1.145 | Journal (article/letter/editorial) | Geochronological Evidence for Multiple Paleoproterozoic Gold Events at the Scale of the West African Craton Elodie...Archean-Proterozoic craton of West Africa hosts numerous gold deposits, which are spatially and temporally related...multiple deformation events. The majority of these gold deposits are located along shear zones. The structural...history is relatively well established for most gold deposits, but absolute timing of the mineralization...craton, were studied to better constrain timing of gold events: Nassara and Kiaka in Burkina Faso and Wassa | | | Journal (article/letter/editorial) | West Africa: The Worldâs Premier Paleoproterozoic Gold Province* Richard J. Goldfarb,1, 2,â Anne-Sylvie...approximate 10,000-metric ton (t) gold endowment, is one of the worldâs great gold provinces and the largest...largest Paleoproterozoic gold-producing region. The gold resources are concentrated within the 2250 to 2000...major orebodies are best classified as orogenic gold deposit types, although there are paleoplacer and...belts, and perhaps local intrusionrelated gold systems. The gold-hosting, mainly greenschist metamorphic | | | Journal (article/letter/editorial) | fluids and Rb-Sr isotopic dating for the Wulong gold deposit in Liaoning, chinaâWei Junhao, Qiu Xiaoping...modelling of sulphidic waste rock dumps at the Aitik mine site, SwedenâClaire M. Linklater, Daniel J. Sinclair...40Ar/39Ar age constraints on gold mineralisation at Tarcoola, central Gawler gold province, South AustraliaâA...Mechanisms of arsenic immobilization in a biomat from mine discharge waterâToshihiko Ohnuki, Fuminori Sakamoto...space in a hard rock mine: Example of SAR interferometry application at Kiruna mineâ E. Henry, C. Mayer | | | Journal (article/letter/editorial) | early-crystallized heavy minerals such as zircon, garnet, and monazite. These minerals are very sensitive to physical...evidence from volcanic ash layers in the lower Yangtze region. Journal of Asian Earth Sciences, 127, 197â210...Cenozoic intraplate alkali basalts in the LutâSistan region, eastern Iran. Chemical Geology, 306â307, 40â53...EoceneâOligocene post-collisional magmatism in the LutâSistan region, eastern Iran: Magma genesis and tectonic implications...tropical weathering of the BaramaâMazaruni greenstone belt at Omai gold mine, Guiana Shield. Applied Geochemistry | | | Journal (article/letter/editorial) | accessory mineral phases such as apatite, allanite and monazite (Alderton et al., 1980; Sawka and Chappell, 1988;...zircon, apatite, monazite and epidote. In Rawang we found anatase, zircon, apatite and monazite. Minor kaolin...(Leybourne and Johannesson, 2008). Apatite (and monazite) is present in Cheras granite at trace levels...fractionation. As conïŹrmation that apatite (and monazite) are not dominant controls on REE fractionation...Rawang granites also contain accessory apatite and monazite, yet the granite-normalised distributions do not | | | Journal (article/letter/editorial) | architecture: tectonic foundations for East Asian orogenic gold Craig J. R. Hart1, Richard J. Goldfarb2 1 Mineral...USA Orogenic gold systems comprise the largest number of gold deposits and greatest gold endowment of...settings that do not fit current models for orogenic gold deposits. These uncertainties conspire to cause...sources regarded to be integral to the orogenic gold deposit model. The vast landmass of Eastern Asia...activity and overprinted by episodic magmatism. Gold deposits and districts formed preferentially in | | | Report (issue) | development and mineral endowment of this important region. Results are also presented from a USGS effort...cyanide and toxic metals released from the Summitville mine on downstream water supplies and crops. The distribution...undiscovered deposits of copper, zinc, lead, silver, and gold-A progress report P. B. Barton, R. A. Ayuso, D....Poster Session 3:20 Richard I. Grauch (USGS), Gold-bearing exhalativehydrothermal systems in the Venezuelan...age and origin of the S~o Bento and Morro Velho gold deposits, Minas Gerais, Brazil Willis H. White (USGS) | | | Book (edition) | Australia Cover photo: Abandoned Open Pit Copper Mine, Casa Grande, Arizona, USA Courtesy of Jim Wark...122 References 126 Chapter 05 The Anatomy of a Mine 127 5.1 It All Begins in the Earth 129 5.2 ExplorationâFrom...Project Impacts 344 10.7 Cultural Heritage Sites and Mine Development 353 10.8 The Special Nature of Community...and Social Impact Statement 446 15.2 Environmental Mine Audits 450 15.3 Sometimes Things Go Wrong 456 References...459 16.1 Changes in Landform 461 16.2 Mine Wastes 465 16.3 Mine Effluents, Acid Rock Drainage and Water |
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