 | | Journal (article/letter/editorial) | | districts of Kropyvnytskyi (Ukraine), Lagoa Real (Brazil), Mount Isa (Australia) and the Central Mineral...Kropyvnytskyi in the Ukraine and Lagoa Real in Brazil (Figures 1–3; Table 1). Other important districts... The giant Itataia (Santa Quiteria) deposit in Brazil with a resource of over 80,000 tonnes U3 O8 is...(Smolino and Ingul) and at Lagoa Real in Brazil (Cachoeira, Engenho) and operated historically in the...Beaverlodge Arjeplog-Arvidsjaur Total Ukraine Brazil Australia Canada Czech Republic Canada Sweden |  | | Report (chapter) | | fluids of orogenic gold deposits of the Gurupi Belt, Brazil: a review of the physico-chemical properties, sources...fluids of orogenic gold deposits of the Gurupi Belt, Brazil: a review of the physico-chemical properties, sources...CPRM/Geological Survey of Brazil. Av. Dr. Freitas, 3645, Belém, State of Pará, Brazil, CEP: 66095-110 (e-mail:...Abstract: The Neoproterozoic Gurupi Belt in northern Brazil developed at the southwestern margin of the Palaeoproterozoic...been extracted from Chega Tudo, Serrinha, and Cachoeira. To date, more than 120 gold occurrences are reported |  | | Book | | 1982 Jules Roger Sauer ” Foreword For years Brazil has been the major producer of colored stones in...metamorphic rocks, the variety of gem deposits in Brazil is almost infinite. In addition to the mineral...assemblage one might expect from pegmatite dikes, Brazil also produces a very significant output of diamonds...written in English, and beautifully illustrated. “Brazil, Paradise of Gemstones’, by Jules Roger Sauer,...turquoise vein near the village of Casa Nova, in Bahia, later flooded by the waters of the Sobradinho dam |  | Klein, Evandro L., Harris, Chris, Giret, André, Moura, Candido A.V., Angélica, Rômulo S. (2005) Geology and stable isotope (O, H, C, S) constraints on the genesis of the Cachoeira gold deposit, Gurupi Belt, northern Brazil. Chemical Geology, 221 (3) 188-206 doi:10.1016/j.chemgeo.2005.05.003 | Journal (article/letter/editorial) | | constraints on the genesis of the Cachoeira gold deposit, Gurupi Belt, northern Brazil Evandro L. Klein a,*, Chris...CPRM/Geological Survey of Brazil, Av. Dr. Freitas, 3645, Belém-PA, CEP: 66095-110, Brazil Université Jean Monnet...Geociências, CP 1611, Belém-PA, CEP: 66075-900, Brazil b Received 3 August 2004; received in revised...April 2005; accepted 3 May 2005 Abstract The Cachoeira gold deposit is one of several large (N 20 tonnes...deposits of the Proterozoic Gurupi Belt in northern Brazil. O, H, C, and S isotope compositions of carbonate |  | Santos, João Orestes Schneider, Groves, David Ian, Hartmann, Léo Afraneo, Moura, Márcia Abrahão, McNaughton, Neal Jesse (2001) Gold deposits of the Tapajós and Alta Floresta Domains, Tapajós–Parima orogenic belt, Amazon Craton, Brazil. Mineralium Deposita, 36 (3) 278-299 doi:10.1007/s001260100172 | Journal (article/letter/editorial) | | TapajoÂs±Parima orogenic belt, Amazon Craton, Brazil Received: 16 March 2000 / Accepted: 18 February...ArauÂjo 2160, Aleixo, Manaus, Amazonas 69060-001, Brazil E-mail: orestes@conex.com.br Fax: +55-92-6635531...Bento GoncËalves 9500, 91500-000 Porto Alegre ± RS, Brazil M.A. Moura Instituto de GeocieÃncias, FundacËaÄo...UniversitaÂrio, Asa Norte, BrasõÂ lia-DF 70910-900, Brazil N.J. McNaughton Centre for Global Metallogeny,...Amazon Craton has been the main source of gold in Brazil during the last three decades. NilcËo Pinheiro |  | | Journal (article/letter/editorial) | | inside by quartz crystals, 5 cm across; Pine Creek mine, Bishop, Inyo County, California. Si and Ann Frazier...show the interior. This example, from Paraíba, Brazil, consists of several bands of chalcedony followed...colorful polyhedroid, 12.8 × 7.3 × 5 cm, from Paraíba, Brazil, consisting of multiple bands of chalcedony and...2015 Figure 5. Cluster of platy “angel-wing” calcite crystals from Rodeo, Durango, Mexico. The theory...likely is that quartz filled in open spaces between calcite crystals such as these. Midwestern Minerals specimen |  | Klein, Evandro L., Harris, Chris, Renac, Christophe, Giret, André, Moura, Candido A. V., Fuzikawa, Kazuo (2006) Fluid inclusion and stable isotope (O, H, C, and S) constraints on the genesis of the Serrinha gold deposit, Gurupi Belt, northern Brazil. Mineralium Deposita, 41 (2) 160-178 doi:10.1007/s00126-006-0050-1 | Journal (article/letter/editorial) | | the Serrinha gold deposit, Gurupi Belt, northern Brazil Received: 24 February 2005 / Accepted: 25 January...Serrinha gold deposit of the Gurupi Belt, northern Brazil, belongs to the class of orogenic gold deposits...CPRM/Geological Survey of Brazil, Av. Dr. Freitas, 3645, Belém-PA, CEP: 66095-110, Brazil e-mail: eklein@be.cprm...Federal do Pará, CP 1611, Belém-PA, CEP: 66075-900, Brazil K. Fuzikawa CDTN/CNEN, Rua Mario Werneck s/n, Cidade...Universitária, Belo Horizonte-MG, CEP: 30270-010, Brazil ciated with postentrapment modifications. The |  | | Report (issue) | | Deposits of the Cachoeira do Campo Dom Bosco, and Ouro Branco Quadrangles Minas Gerais, Brazil GEOLOGICAL...the Departamento Nacional da Producao Mineral of Brazil under the auspices of the International Cooperation...Deposits of the Cachoeira do Campo Dom Bosco, and Ouro Branco Quadrangles Minas Gerais, Brazil By ROBERT F...AND MINERAL RESOURCES OF PARTS OF MINAS GERAIS, BRAZIL GEOLOGICAL SURVEY PROFESSIONAL PAPER 341-B...the Departamento National da Producao Mineral of Brazil under the auspices of the International Cooperation |  | | Journal (article/letter/editorial) | | common. Gangue minerals include albite, carbonates (calcite and dolomite), and sodic pyroxene and amphibole...Rog district of the Ukraine and at Lagoa Real in Brazil and have operated historically in the Beaverlodge...include Itataia (Santa Quiteria) and Lagoa Real in Brazil, the Central Mineral Belt of Labrador, Canada,...gneiss Orosirian– Stratherian No Data Itataia Brazil Itataia Minerals 2013, 3 38 Table 1. Cont....Mineral Belt Mount Isa BeaverLodge Country Brazil Canada Australia Canada Endowment (kt U3O8) |  | | Report (volume) | | the Serra do Navio district, Territory of Amapd, Brazil, by John Van N. Dorr 2d, Charles F. Park, Jr.,...___________ (C) Mica deposits in Minas Gerais, Brazil, by W. T. Pecora, M. R. Klepper, and D. M. Larrabee...11. Plan and sections of the lower adits, Quindio mine, municipio of Cajamarca, Tolima, Colombia._____________________In...pocket 12. Map showing principal mica, optical calcite, and quartz crystal mines and prospects, Colom...Map and sections of the Alumbral quartz crystal mine, municipio of Muzo, Boyacd, "Colombia. ______ _____________ |  | | Journal (article/letter/editorial) | | and occurrences of the CrixaÂs Gold®eld, central Brazil Received: 14 November 1999 / Accepted: 18 February...Gold production in the state of GoiaÂs, central Brazil, began in the 18th century, when the bandeirantes...bandeirantes (Portuguese Far West pioneers of colonial Brazil) recovered gold mostly from alluvial and, locally...BrasõÂ lia, P.O. Box 04421, BrasõÂ lia 70919-970, Brazil E-mail: hjost@tba.com.br did the region became...occurrences of the northern domain of the central Brazil Archean terrain, here referred to as the CrixaÂs |  | | Journal (article/letter/editorial) | | rocks of the Quadrilatero Ferrifero, Minas Gerais, Brazil, suggest three ages of intrusion: 2400 m.y. determined...in de Geologia, 1958). The Caraga group consists Brazil are known only from the region of largely of quartzites...Quadrilatero Ferrifero of the State of Minas Gerais, Brazil, by the Brazilian Departamento Nacional da Produ...OF MINERALS FROM GRANITIC ROCKS, MINAS GERAIS, BRAZIL Group Specimen number number I II III Locality...Dam Cachoeira do Campo Belo Horizonte Belo Horizonte Itabirito — Santa Barbara Jeceaba Cachoeira do Campo |  | Klein, E. L., Ribeiro, J. W. A., Harris, C., Moura, C. A. V., Giret, A. (2008) Geology and Fluid Characteristics of the Mina Velha and Mandiocal Orebodies and Implications for the Genesis of the Orogenic Chega Tudo Gold Deposit, Gurupi Belt, Brazil. Economic Geology, 103 (5) 957-980 doi:10.2113/gsecongeo.103.5.957 | Journal (article/letter/editorial) | | Deposit, Gurupi Belt, Brazil * EVANDRO L. KLEIN, † Geological Survey of Brazil, Av. Dr. Freitas, 3645...3645, Belém-PA, Brazil, CEP: 66095-110 JOSÉ W. A. RIBEIRO, Newmont Overseas Exploration Limited, Surinam...Pará, Centro de Geociências, CP 1611, Belém-PA, Brazil, CEP: 66075-900 AND ANDRÉ GIRET Université Jean...deposit is located in the Gurupi belt of northern Brazil. Gold mineralization in the Mina Velha (upper level)...metamorphism, syn- to late tectonic, and includes quartz, calcite, chlorite, white mica, pyrite, subordinate chalcopyrite |  | | Report (issue) | | the Departmento National da Produ^ao Mineral of Brazil under the auspices of the Agency for International...Gerais, Brazil By NORMAN HERZ REGIONAL GEOLOGY OF THE QUADRILATERO FERRIFERO, MINAS GERAIS, BRAZIL GEOLOGICAL...the Departmento Nacional da Produqao Mineral of Brazil under the auspices of the Agency for International...Minas Gerais, Brazil. (Regional geology of the Quadrilatero Ferrifero, Minas Gerais, Brazil) (Geological...Petrology Brazil Quadrilatero do Ferro. 3. Geology, Stratigraphic Pre-Cambrian. I. Brazil. Departamento |  | | Journal (issue) | | NUMBER SIX APRIL 1993 Cover Picture The Hematita mine in Minas Gérais in 1987 - probably the richest alexandrite...deposits of alexandrite, cat's-eye and chrysoberyl in Brazil' pp. 333-54) ISSN: 0022-1252 F.G.A. your key...to be able to deterAlthough it is very important mine if if a gem is natural or synthetic, and treated...semi-transparent inclusion that appeared to be calcite displayed ring-like patterns of bright interference...5 x 1.0 millimetres was used, rather than the calcite-in-ruby described above. This was done because |  | | Journal (article/letter/editorial) | | Metasomatism,and Mineralization at Lagoa Real, Bahia, Brazil LYDIA M. LOBATO* Comissdo Nacionalde EnergiaNuclear--Centrode...Cx. Postal 1941, Belo Horizonte, Minas Gerais, Brazil 31271 AND WILLIAM S. FYFE Geology Department...oFranciscoeraton, at the LagoaReal region of southcentralBahia,Brazil. The gneisses havebeen subjectedto amphiboliteand...Lagoa Real region of south-centralBahia State, Brazil, granitie rocks enclosedin high-grade basementgneissesof...uranium enrichment that in places Minas Gerais, Brazil 31270. attainore grade(Fig. 1). The mineralizationis |  | | Report (issue) | | BELIZE BENIN BOLIVIA BOSNIA AND HERZEGOVINA BOTSWANA BRAZIL BRUNEI DARUSSALAM BULGARIA BURKINA FASO BURUNDI...The application of borehole seismic techniques in mine development at the Millennium uranium deposit, Northern.................. 151 C. Edwards Converting the Caetité mill process to enhance uranium recovery and expand...O. Skalskyi, V. Riazantsev, D. Bugai Uranium ISR mine closure — general concepts and model-based simulation...simulation of natural attenuation for South-Australian mine sites ......................................... |  | | Journal (article/letter/editorial) | | BATATEIRAS, BAHIA Wall rock is sandstone. Note sandstone inclusion in vein. FIGURE 3. GARGAS MINE, NEAR COKINTO...FIGURE 2. BATATEIRAS, BAHIA Wall rock is sandstone. FIGURE 4. SAO PEDRO MINE, CRISTALINA, GOIAZ Wall...sandstone. Photo by E. II. Payne. Fir.uHi-: 5. Juiz MINE, FAZHNDA CAPAO, MINAS GERAIS Pile of well-formed...COMB QUARTZ In sandstone at edge of pipe. ALF.GKK MINE, BAIIIA Outcrop Map of Onca-Pacu Crystal...where p^^KJgtj accurately located . Open cuta and mine facet. M,n* dumps. Contour interval IS m»t»r« A»»um»d |  | | Journal (issue) | | by the A 7cm crocoite specimen from the Red Lead Mine, specific programs. Dundas, Tasmania; one of many...ratherhefty 13 x 10 x 8 cm @ 85.00. COPPERandCALCITE-Emke Mine,Onganja,Namibia An appealingcabinetspecimenfroma...dthtir LOCALITIES 5---- I Governador V aladares (Brazil) Revisited By John Sulzbach, sulzbach-ja@comcast...9 - Vivianite with minor muscovite, from Cigana Mine. Arriving at the Vlcek home, I separated the tools...Her local knowledge, and reliable reputation with mine owners had enabled me to have digging opportunities |  | | Report (issue) | | of the Pico de Itabirito District Minas Gerais, Brazil GEOLOGICAL SURVEY PROFESSIONAL Prepared in cooperation...the Departamento Nacional da Producao Mineral of Brazil under the auspices of the Agency for International...Gerais, Brazil By ROBERTS M. WALLACE GEOLOGY AND MINERAL RESOURCES OF PARTS OF MINAS GERAIS, BRAZIL GEOLOGICAL...the Departamento Nacional da Producao Mineral of Brazil under the au-spices of the Agency for International...Manganese mines.___-___-.__---_--------------Sapecado mine _________________--------Reserves ____-____._--------------Lagoa |  | | 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 |  | | Journal (issue) | | typically abraded specimens you’ve found in the old mine dumps. And you’ve probably looked long and hard...Everyone has heard repeated warnings about entering old mine workings. But, face it, those deep, open shafts...commonality: They can be very dangerous. Each year mine rescue specialists and conventional search and rescue...Statistically, shafts are the most dangerous part of any mine; 90 percent of all accidents and entrapments in...disturbed. In the narrow confines of an underground mine, shattering timbers can be as deadly as the rock |  | | Journal (article/letter/editorial) | | Una and Bambuí Groups of northeastern and central Brazil are remnants of a vast intracratonic carbonate...Southern Irecê paleobasin (near Iraquara, MG, Brazil). Scale is the same as (c). (e) Januária area...area (near Cavernas do Peruaçu National Park, MG, Brazil). (f) Sete Lagoas area. Maps are modified after...after those published by the Geologic Survey of Brazil or CPRM (Dalton de Souza et al., 2003; Fonseca et al...Una and Bambuí groups of Northeastern and Central Brazil preserve some record of the formation and diagenesis |  | | Journal (issue) | | During Mill Tailings Backfill Operations in a Uranium Mine D. Kauffman, E. J. C. Kong, and J. P. H. Lin Toxic...Mill Tailings Backfill Operations in a Uranium Mine DAVID KAUFFMAN, EMERY J. C. KONG! and JOKOB P. H...concentrations in a part of an underground uranium mine in the Ambrosia Lake, New Mexico, area were used...Thompkins 1970). In practice, continuous monitoring of mine work areas and frequent adjustment of ventilation...developed to simulate radon release in this same mine area. Calculated estimates were high by a factor |  | | Report (volume) | | workshop held December 1-10,1986, in Belo Horizonte, Brazil, was hosted by the Institute Brasileiro de Mineragao...Quintas, Mineragao Morro Velho Club, Nova Lima, Brazil December 4,1986 1. 2. 3. 4. 5. Sergio C. Guedes...Quadrilatero Ferrffero, Minas Gerais, Brazil Workshop: Belo Horizonte, Brazil, December 1-10,1986 Sponsors:...Data Gold deposits related to greenstone belts in Brazil Deposit modeling workshop; Part A Excursions /...deposits related to greenstone belts in Brazil, Belo Horizonte, Brazil, 1986, by Charles H. Thorman and Eduardo |
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