 | Mello, Edson F., Xavier, Roberto P., McNaughton, Neal J., Hagemann, Steffen G., Fletcher, Ian, Snee, Larry (2006) Age constraints on felsic intrusions, metamorphism and gold mineralisation in the Palaeoproterozoic Rio Itapicuru greenstone belt, NE Bahia State, Brazil. Mineralium Deposita, 40 (8) 849-866 doi:10.1007/s00126-005-0037-3 | Journal (article/letter/editorial) | | Palaeoproterozoic Rio Itapicuru greenstone belt, NE Bahia State, Brazil Received: 24 February 2004 / Accepted: 22...Universitária, Ilha do Fundão, Rio de Janeiro, 21949-900, Brazil e-mail: mello@geologia.ufrj.br Tel.: +55-021-25989464...Universidade Estadual de Campinas (Unicamp), Campinas, SP, Brazil N. J. McNaughton . S. G. Hagemann . I. Fletcher...on hydrothermal muscovite samples from the Fazenda Brasileiro gold deposit are interpreted as minimum ages...Itapicuru greenstone belt . São Francisco Craton . Brazil Introduction The Rio Itapicuru greenstone belt |  | Teixeira, J. B. G., Kishida, A., Marimon, M. P. C., Xavier, R. P., McReath, I. (1990) The Fazenda Brasileiro gold deposit, Bahia; geology, hydrothermal alteration, and fluid inclusion studies. Economic Geology, 85 (5) 990-1009 doi:10.2113/gsecongeo.85.5.990 | Journal (article/letter/editorial) | | EconomicGeology Vol. 85, 1990, pp. 990-1009 The Fazenda BrasileiroGold Deposit, Bahia:Geology,Hydrothermal... 20 Rua Guadalajara, Barra, Salvador, Bahia Cep 40.160, Brazil R. P. XAVIER, Institutode Geocidncias...Cidade Universitdria,Campinas,SaoPauloCep 13.100, Brazil AND I. MCREATH Departamentode GeologiaGeral, Institutode... Cidade Universitdria,Cep 01498, Sc7o Paulo,SP,Brazil Abstract The high-gradegold mineralizationat ...npattern. Introduction Regional Geology THE Fazenda Brasileirogold deposit,discoveredin 1976 by Rio |  | Geraldes, M. C., De Abreu, G. C., Pires, P. R., Mello, E. F., Iyer, S. S. (2006) Sulfur Isotope Characteristics of Mesothermal Gold Deposits: Results of an Investigation of the Rio Itapicuru Region, Bahia, Brazil. International Geology Review, 48 (5) 410-419 doi:10.2747/0020-6814.48.5.410 | Journal (article/letter/editorial) | | Investigation of the Rio Itapicuru Region, Bahia, Brazil a b c d M. C. Geraldes , G. C. De Abreu...Investigation of the Rio Itapicuru Region, Bahia, Brazil, International Geology Review, 48:5, 410-419...Investigation of the Rio Itapicuru Region, Bahia, Brazil M. C. GERALDES, Tektos–Grupo de Pesquisa em...Xavier 524, Maracanã, 20550-013 Rio de Janeiro (RJ), Brazil G. C. DE ABREU, Instituto de Geociências, USP...Cidade Universitária, 05508-900 São Paulo (SP), Brazil Downloaded by [Nipissing University] at 15:15 |  | | Journal (article/letter/editorial) | | the Rio Itapicuru Greenstone Belt, Northeastern Brazil a Gllberto De Llma Pereira Silva & Roberto Perez...(UNICAMP) , P.O. Box 6152, Campinas SP, 13.081-970, Brazil Published online: 06 Jul 2010. To cite this article:...the Rio Itapicuru Greenstone Belt, Northeastern Brazil, International Geology Review, 39:8, 688-702, DOI:...Campinas P.O. Box 6152, 13.081-970 Campinas SP, Brazil (UNICAMP), Downloaded by [York University Libraries]...mineralization in the mesothermal Fazenda Maria Preta (FMP) and Fazenda Canto (FC) deposits of the Paleoproterozoic |  | | Journal (article/letter/editorial) | | Federal da Bahia, Campus Universitário de Ondina, Sala 201-C, Salvador, 40170-290, Bahia, Brazil b Geological...Survey of Brazil (CPRM)-Av. Pasteur, 404, Urca, Rio de Janeiro, 22290-240, Rio de Janeiro, Brazil Received...from Venezuela (Imataca Complex), and others from Brazil (Quadrilátero Ferrífero, Itabira, and Guanhães)...mentioning that the Serra dos Carajás Basin in northern Brazil is older. It contains the worlds' largest iron...metamorphosed Caraíba deposit, Curaçá Valley, Bahia, Brazil. This is an unusual, strongly deformed copper |  | | Journal (article/letter/editorial) | | in the Fazenda Maria Preta žFMP / gold deposit, Rio Itapicuru Greenstone Belt, Bahia, Brazil Roberto...Southampton, Southampton SO9 5NH, UK Abstract The Fazenda Maria Preta ŽFMP. gold deposit is confined to two...lower Proterozic Rio Itapicuru greenstone belt, NE Brazil. Alteration is pervasive throughout the shear zones...related to arsenopyrite, pyrite, pyrrhotite, sphalerite, and Fe-chlorite in the carbonaceous wallrocks...´ Estadual de Campinas, 13.083-970—Campinas-SP, Brazil. Fax: q55-19-239-1562; E-mail: xavier@ige.unicamp |  | | Journal (article/letter/editorial) | | quartz veins, contain, ing pyrrhotite-pyrite + sphalerite and native gold; the same sulphides are commonly...pyrrhotite-pentlandite - pyrite - chalcopyrite - sphalerite - native gold - bands of quartz - pyrite + chalcopyritenative...gold (L1) rare quartz veinlets with pyrite :1: sphalerite-tou rmaline - molybdenite bodies in altered...carbonate - quartz stockwork with pyrite + pyrrhotite sphalerite - gold DANGO - dissemination of pyrite in non-chloritized...analogous to the Jacobina manganiferous deposits in Brazil). Finally, the thrusting of the Ogoou6 and Etrk6 |  | Bourges, F., Debat, P., Tollon, F., Munoz, M., Ingles, J. (1998) The geology of the Taparko gold deposit, Birimian greenstone belt, Burkina Faso, West Africa. Mineralium Deposita, 33 (6) 591-605 doi:10.1007/s001260050175 | Journal (article/letter/editorial) | | metavolcanic or granitoid) (Poura Mine in Burkina Faso, Sabodala Mine in Senegal). From the relationships...western greenstone belts of Hounde and Boromo (Poura Mine) and in the northern greenstone belt of Bouroum-Yalogo...inclusions and are associated with chalcopyrite and sphalerite containing chalcopyrite inclusions and (b) aggregates...accompanied by small amounts of chalcopyrite, sphalerite, galena and pyrite. The pyrite deformation results...associated, in some cases, with chalcopyrite and sphalerite which present the same relationships as gold |  | | Journal (article/letter/editorial) | | inclusions related to gold mineralisation in the Ashanti mine at Obuasi, Ghana (Schwartz et al. 1992; Oberthür...samples from the Ashanti mine. Fluid inclusions in samples from the Prestea mine were investigated by Manu...et al. 1994). For the mineralisation at Ashanti mine Pb/ Pb model ages between 2122 and 1940 Ma were...structural elements in the vicinity of the Ashanti mine. Bedding plots on a well defined circle, only interrupted...dipping bedding, S1 and shear planes in the Ashanti mine show a distinct grouping. The regional plunge of |  | Bogossian, Jessica, Hagemann, Steffen G., Rodrigues, Vinicius G., Lobato, Lydia Maria, Roberts, Malcolm (2020) Hydrothermal alteration and mineralization in the Faina greenstone belt: evidence from the Cascavel and Sertão orogenic gold deposits. Ore Geology Reviews, 119. 103293 doi:10.1016/j.oregeorev.2019.103293 | Journal (article/letter/editorial) | | Belo Horizonte, Minas Gerais, CEP 31270-901, Brazil 4 Centre for Microscopy, Characterisation and...The Faina greenstone belt is located in central Brazil and contains the Cascavel and Sertão gold deposits...comparable with other orogenic gold systems in Brazil and worldwide. Keywords: Faina greenstone belt...Sertão deposits, hydrothermal alteration, central Brazil 1. Introduction Archean and Paleoproterozoic greenstone...have been the focus of research for decades. In Brazil, gold mineralization in greenstone belts is mostly |  | Ibrahim, W.S., Watanabe, K., Yonezu, K. (2016) Structural and litho-tectonic controls on Neoproterozoic base metal sulfide and gold mineralization in North Hamisana shear zone, South Eastern Desert, Egypt: The integrated field, structural, Landsat 7 ETM + and ASTER data approach. Ore Geology Reviews, 79. 62-77 doi:10.1016/j.oregeorev.2016.05.012 | Journal (article/letter/editorial) | | the late phase, dominated by pyrite-II, galena, sphalerite, chalcopyrite, and covellite (Fig. 6f–i), is...dispersed anhedral grains in quartzites (Fig. 4g–i). Sphalerite, is usually not observed as individual grains...phase pyrite; qz, quartz; cpy, chalcopyrite; sph, sphalerite; ga, galena. a) Sharp contact between quartzites...pyrite (py-I) grains with fractures filled by sphalerite and disseminated pyrite (py-II). e) Deformed...grain indicating right-lateral shear sense. f) Sphalerite and galena intergrown and inclusions with pyrite |  | Milesi, J.P, Ledru, P, Marcoux, E, Mougeot, R, Johan, V, Lerouge, C, Sabaté, P, Bailly, L, Respaut, J.P, Skipwith, P (2002) The Jacobina Paleoproterozoic gold-bearing conglomerates, Bahia, Brazil: a “hydrothermal shear-reservoir” model. Ore Geology Reviews, 19 (1) 95-136 doi:10.1016/s0169-1368(01)00038-5 | Journal (article/letter/editorial) | | Paleoproterozoic gold-bearing conglomerates, Bahia, Brazil: a ‘‘hydrothermal shear-reservoir’’ model J...Jacobina basin in the São Francisco province of Bahia, Brazil are of special interest relative to this debate...located 370 km northwest of Salvador in Bahia State, Brazil. It is 200 km long by 15 –25 km wide, culminates...1993; Mascarenhas et al., 1998). The Canavieiras mine, between 1950 and 1966, produced 115 653 t of ore...resources of the main mineralized level in the Itapicuru mine (which closed in 1999) at 35 t of gold (6.5 Mt grading |  | CHAUVET, A., PIANTONE, P., BARBANSON, L., NEHLIG, P., PEDROLETTI, I. (2001) Gold Deposit Formation during Collapse Tectonics:Structural, Mineralogical, Geochronological, and Fluid InclusionConstraints in the Ouro Preto Gold Mines, Quadril ateroFerrifero,Brazil. Economic Geology, 96 (1) 25-48 doi:10.2113/gsecongeo.96.1.25 | Journal (article/letter/editorial) | | Ouro Preto Gold Mines, Quadrilátero Ferrífero, Brazil A. CHAUVET,† Institut des Sciences de la Terre...deposits of the Ouro Preto area (Minas Gerais, Brazil) occur along the main tectonic contact responsible...deposits of the Ouro Preto area (Minas Gerais, Brazil) are currently interpreted as mesothermal greenstonehosted...FORMATION DURING COLLAPSE TECTONICS: OURO PRETO, BRAZIL BRAZIL an ce At lan t ic O São Francisco Craton..."Antõnio Pereira" Mine 2 "Morro Santana" Mine Gold mines concerned 3 "Mata Cavalo" Mine by this work 4 "Passagem |  | | Book | | BARTORELLI ::• . . .. MINERALS & PRECIOUS STONES OF BRAZIL Sponsored by: VALE MINISTER.IO DA CULTURA ©...Brasileira do Livro, SP, Brazil) Cornejo, Carlos .Minerals & precious stones of Brazil. Carlos Cornejo, Andrea...3. Minerals - Brazil 4. Minerals- Classification 5. Mineralogy 6. Mineralogy - Brazil - History 7. Precious...Precious stones - Brazil I. Bartorelli, Andrea. II. Title. 09-10025 Cover photograph: Crystal of brazilianite...Landmann. CDD-549 Indexes for systematic catalog: 1. Brazil: Minerals and precious stones: Mineralogy and gemology |  | | Book | | Manchester in 1973 (Ph.D.) and was then employed as a mine and exploration geologist by Falcon Mines Ltd in...palaeoplacer research, both in southern Africa and Brazil. He is best known for his publications on sedimentological...Market setting 13.3 Gold-mine production 13.3.1 World-wide trends 13.3.2 Brazil 13.3.3 United States 13...(USA), the Deccan (India), and the Parana Basin (Brazil), average 3.5 ppb gold with little variation in...Additional deposits include the Jacobina Series, Brazil, and the Tarkwa Goldfields, Ghana, with average |  | | Book | | processing, placer mining, heap leaching, small mine development, etc. This is the first major conference...Rock Mechanics, Chairman of the CACRM Committee on Mine Waste Embankments, Specialist Consultant to the...Mines for the development of the ‘“‘Design Guide for Mine Waste Embankments in Canada,” Specialist Technical...Potisat.......... 3 13 34 48 59 Gold Mining in Brazil: Past, Present and Future A.C. de Araujo, R.Z.L...Stability Analysis of the VCR Stope at the Homestake Mine W:G. Pariseau, F. Duan, C:S: SChAMUCK 3.2.72 ee |  | | Report (issue) | | Victori a Australia, Western Australia Bolivia Brazil Colombi a Canada, British Columbi a Canada Manitoba...Exhibition Lead Fairplav Fales Hill Mine Fall Creek Fa:enda Brasileiro Fifield Lead IPt placer) Folsoa Foots...Hydraulic Mine Lady Hacquarie Dredge Lake Creek Lake Creek Lake Creek Laib Creek Landstrut Drift Mine Last...approximately 2.5 miles of creek were dredged; drift mine ground was valued at $17/sq ft (1976 prices, Au...pyrite, zircon, chalcopyrite, monazite, galena, sphalerite, and scheelite; gravels are very coarse and subangular |
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