 | | Journal (article/letter/editorial) | | Sulfur-Isotope Investigations of the Boquira Sediment-Hosted Sulfide Deposit, Brazil a b c Ilson G. Carvalho...Geociências , Universidade Federal da Bahia, Salvador, BA 40210-340, Brazil b Department of Physics and Astronomy...Universidade de São Paulo , SP 05422-970, São Paulo, Brazil d Programa de Pesquisa e Pós-Graduacão em Geofisica...Geociências, Universidade Federal da Bahia , Salvador, BA 40210-340, Brazil Published online: 06 Jul 2010....Sulfur-Isotope Investigations of the Boquira Sediment-Hosted Sulfide Deposit, Brazil, International Geology Review |  | | Report (volume) | | S3 Lead-Zinc Deposits of the Boquira District State of Bahia, Brazil GEOLOGICAL SURVEY BULLETIN 3...the Departamento National da Producao Mineral, Brazil, under the auspices of the International Cooperation...1110-A Lead-Zinc Deposits of the Boquira District State of Bahia, Brazil By ROBERT F. JOHNSON CONTRIBUTIONS...the Departamento Nacional da Producdo Mineral, Brazil, under the auspices of the International Cooperation...1. Geologic map and section of the Boquira district, Bahia Brazil.___________________________________________ |  | | Journal (article/letter/editorial) | | Proterozoic SedimentHosted Pb-Zn (Ag) Deposits of Brazil Aroldo Misi’, Sundaram S. Iyer2, Colombo C. G....Universidade Federal da Balzia, Salvador; BA 40210-340, Brazil, E-Mail: rnisi@ujlm.br Department of Physics arid...Universiclade de SZo Paulo, SZo Pado, Sdo Paulo, 05422-970, Brazil Department of Geological Sciences, The University...UtiiverrridadeFederal da Baftia, Salvador; Bahia, 40210-340, Brazil Curso de Po’s-Graduagdo enz Geoquiniica...Ceocidncias, Universidade Federal da Bahia, Salvador; Balzia, 40210-340, Brazil (Mciizuscriptrsceiwrl Deceinlzer |  | | Journal (article/letter/editorial) | | the northern Serra do Espinhac o (State of Bahia, Brazil) G. Morteani1 and D. Ackermand2 1 Geoexpert...Espinhac o, State of Bahia, NE Brazil) about 10 km west of the town of Boquira. Sky blue lazulite and...world-wide e.g. from the present study area in Bahia (Brazil) by Cassedanne and Franco (1966), Cassedanne...Visser et al. (1997), from Diamantina, Minas Gerais (Brazil) by Horn et al. (1996) and Morteani and Ackermand...Northern Espinhac o mountain chain, State of Bahia, Brazil, and are one of the rather rare examples of |  | | Journal (issue) | | Cook, Jr. Minerals of the Lead-Zinc Localitiesof Brazil 282 by Jacques P. and Jeannine O. Cassedanne The...i n c ■m e coLLecror Tourmaline Tourmaline Queen Mine Pala, California "EXCEPTIONAL MINERALS, GEM CRYSTALS...February 17, (Tuesday) is being planned to Mammoth Mine, Tiger, Arizona. Transportation and box lunches...been found at the Foote Mineral Com pany spodum ene mine, near Kings M ountain, Cleve 276 land County...primary, are m anganapatite (green in color) and pyrite. Foote fersmite is clearly epitaxial on columbite |  | | Journal (article/letter/editorial) | | other by iron formation (Dammberget (Sweden), Boquira (Brazil), Aggeneys (South Africa), and Gamsberg). Although...affinities 25 Deposit Foster River Menninnee Dam Boquira Green Parrott Angas Cottonbelt Age (Ga) Grade...(continued ) Deposit Foster River Menninnee Dam Boquira Green Parrott Angas Cottonbelt MetamorphicGrade...Mag magnetite, Mc marcasite, Po pyrrhotite, Py pyrite Details are not provided for the Rio Mazoe deposit...Where present, pyrite is generally secondary but there are trace amounts of primary pyrite. Silver occurs |  | | Journal (article/letter/editorial) | | large number of minerals, including magnetite, pyrite, calcite, fluorite, sphalerite, galena, pyromorphite...in the New Placers district and at the San Pedro mine, Santa Fe County. Small, well-developed hematite...skeletal plates to 7 cm from Nador, iY&rocco. ~~~ mine in the Ajo district, Pima County. The premier Arizona...the Royal Ontario Museum measures 17 x 17 x 9 cm. Brazil continues to be the source of fine hematite specimens...almost 20 cm at Sao Juliao, Our0 Preto; Itibiara, Bahia, in roselike aggregates and as plates serving as |  | | Journal (article/letter/editorial) | | of Galenas from the Bambui Group, Minas Gerais- Brazil S. S. Iyer Departamento de Processos Especiais...Nucleares, Caixa Postal 11049, Pinheiros, S~o Paulo, Brazil Abstract. Lead isotope data on galenas from the...an area of more than 400,000 Sq. Km. in central Brazil (Almeida et al., 1976). This group contains major...which includes part of the State of Minas Gerais, Bahia and Goias (Fig. 1 of Cassedanne, 1973). The group...mineralization of the Bambui group in the State of Bahia. In the State of Minas Gerais the Bambui group occupies |  | | 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 |  | | Journal (article/letter/editorial) | | Tourmaline-Bearing Gold Deposit' Passagemde Mariana (Brazil) ROlAnD FnE•SCI•I• A•D P• Abstract A facies..."Quadril/ttero Ferrlfero," State of Minas Gerais, Brazil. Exploited sincethe end of the seventeenth century...Stratigraphy Fleischer(1971) is shownin Table 1. The mine of Passagemde Mariana is situated7 The baseof the...Rocksin the Quadrilfitero Ferrlfero(MinasGerais,Brazil) Accordingto Dorr (1969)and SlightlyModifiedby... absence whichwasexploitedmainlyat the Passagem mine,is tions which producedfacies changesin the Minas |  | de Abreu Cunha, Ioná, Misi, Aroldo, Babinski, Marly, Iyer, Sundaram Sankara S. (2007) Lead isotope constraints on the genesis of Pb–Zn deposits in the Neoproterozoic Vazante Group, Minas Gerais, Brazil. Gondwana Research, 11 (3) 382-395 doi:10.1016/j.gr.2006.02.008 | Journal (article/letter/editorial) | | the Neoproterozoic Vazante Group, Minas Gerais, Brazil Ioná de Abreu Cunha a , Aroldo Misi a,⁎, Marly...Geociências, Universidade Federal da Bahia, Salvador, BA 40210-340, Brazil Centro de Pesquisas Geocronológicas...Rua do Lago, 562, São Paulo, CEP 05508-080, SP, Brazil c Department of Physics and Astronomy, University...the western border of the São Francisco Craton, Brazil, hosts the largest Zn–Pb district in South America...deposits; Vazante Group; Neoproterozoic metallogeny; Brazil 1. Introduction The Neoproterozoic Vazante Group |  | | Journal (article/letter/editorial) | | Universitesi] at 20:25 14 March 2016 Blanchard Mine, Bingham, New Mexico T here once was a time when...originating at what was then known only as the Blanchard mine, Bingham, New Mexico. Oh, for those simpler times...fine brochantite from the abovementioned Blanchard mine has been selected for this issue. Brochantite, a...with langite and posnjakite occurs in the Ecton mine, Montgomery County (Smith 1978); and brochantite...found in the shallow stopes of the Chestatee copper/pyrite deposit, Lumpkin County, Georgia (Cook and Hughes |  | | Journal (issue) | | aggregate of prismatic bismuthinite crystals from a mine at Brosso, near Turin (Italy). TESTS AND TREATMENT...with the minerals chalcopyrite, galena, magnetite, pyrite and sphalerite. The world's principal sources of...Below: A massive aggregate of blue quartz from Brazil. This typical specimen owes its distinctive coloration...quartz are found in the fol:owing locations: Boquira, Bahia (Brazil); Karnataka (lndid); Arizona, California...Beautiful white crystals this mineral are found in Brazil, of phenakite. Below: Although most topaz becomes |  | | 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 |  | | Book | | On a spectacular find of crocoite in the Adelaide mine, Dundas, Tasmania (by A. H. Chapman) 3:111-113 ADOLFSSON...AJO Famous mineral localities: the New Cornelia mine, Ajo, Arizona (by W. J. Thomas & R. B. Gibbs) 14:283-298...ALLEN, GEORGE B. --and W. Hunt: The Tonopah-Belmont mine, Maricopa County, Arizona 19:139-144 ALLGOOD, GENNE...Allgood, C. Williams: Ramsdellite from the Mistake mine [Arizona] 14:333-335 ALLGOOD, ROBERT W. -with G...the Mistake mine [Arizona] 14:333-335 ALMA Famous mineral localities: the Home Sweet Home mine, [near Alma |  | | Report (volume) | | ________ 1 1 2 2 3 3 3 5 5 6 6 6 8 8 8 8 9 9 Brazil ----------------------------------------------------------------...A., 1970, Use of iron-oxide pseudomorphs after pyrite in geochemical prospecting: U.S. ECAFE Seminar...C. K., 1968, Isotope hydrology ofthe artesian BRAZIL 9 Ref. No. aquifers of the Styrian Basin, Austria:...Bol. 3 (spec. issue), 153 p., 8 pls., 13 figs. BRAZIL 99. Aragao, G. C. de, Couto, P. A. de A., DaSilva...Brasileira Geol., Nucleo Bahia, Bol. E:sp. 1, p. 18. 100. Bodenlos, A. J., 1974, Brazil geological education |  | Cordeiro, Pedro F.O., Oliveira, Claudinei G., Paniago, Luiz N., Romagna, Glacir, Santos, Roberto V. (2018) The carbonate-hosted MVT Morro Agudo Zn-Pb deposit, central Brazil. Ore Geology Reviews, 101. 437-452 doi:10.1016/j.oregeorev.2018.08.002 | Journal (article/letter/editorial) | | carbonate-hosted MVT Morro Agudo Zn-Pb deposit, central Brazil Pedro F.O. Cordeiro, Claudinei G Oliveira, Luis...carbonatehosted MVT Morro Agudo Zn-Pb deposit, central Brazil, Ore Geology Reviews (2018), doi: https://doi.org/10...carbonate-hosted MVT Morro Agudo Zn-Pb deposit, central Brazil Pedro F. O. Cordeiro1,2, Claudinei G Oliveira3...Curitiba, Brazil 3 Universidade de Brasília, Brazil 4 Agência Nacional de Mineração, Brasília, Brazil 5 Nexa...known Mississippi-Valley Type deposit (MVT) in Brazil with original estimated reserves of 18.3 Mt @ 5 |  | | Journal (article/letter/editorial) | | by assemblages of rhodochrosite – sphalerite – pyrite and bustamite – sphalerite. The sphalerites show...of pyrite and chalcopyrite in sphalerite and minerals in microfissures (among them galena, pyrite, arsenopyrite)... Fl – fluorite, Qz – quartz, Cc – calcite, Py – pyrite, He – hematite, Rs – rhodochrosite, Rn – rhodonite...including rhodochrosite, rhodonite, calcite, hematite, pyrite, and quartz). Breccia-type ore. Various-sized fragments...bustamite rock cross-cutting white marble. Dark ore, pyrite bearing, extremely rich in sphalerite and containing |  | | Journal (article/letter/editorial) | | Southern Part of the Proterozoic Vazante Group, Brazil: Implications for Exploration of Sedimentary-Hosted...Southern Part of the Proterozoic Vazante Group, Brazil: Implications for Exploration of Sedimentary-Hosted...SOUTHERN PART OF THE PROTEROZOIC VAZANTE GROUP, BRAZIL: IMPLICATIONS FOR EXPLORATION OF SEDIMENTARY-HOSTED...throughout the evolution of the sedimentary basins. In Brazil, the main zinc deposits are hosted in the Proterozoic...sulfide deposits are the only active Pb-Zn mines in Brazil, operated by Votorantim Metais S.A. http://www |  | | 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 (article/letter/editorial) | | com/loi/tigr20 Geology and Mineral Resources of Brazil: A Review a a Inacio De Medeiros Delgado , Augusto...de Pesquisa de Recursos Minerals, Scdvador, Bahia, Brazil b US. Geological Survey, Denver, CO, 80225...Thorman (1994): Geology and Mineral Resources of Brazil: A Review, International Geology Review, 36:6,...rights reserved. Geology and Mineral Resources of Brazil: A Review INACIO DE MEDEIROS DELGADO, AUGUSTO J...de Pesquisa de Recursos Minerals, Scdvador, Bahia, Brazil AND CHARLES H. THORMAN US. Geological Survey |  | | Journal (article/letter/editorial) | | described e. g. from the Serra do Espinhaço (Bahia, Brazil, Casse- danne & Franco 1966, Cassedanne et...Visser et al. 1997), from Diamantina (Minas Gerais, Brazil, Horn et al. 1996, Morteani & Ackermand 2001),...(Mg), Fe-metal (Fe), synthetic SrCuSi4 O10 (Sr), pyrite (S) for major elements and different glass standards...minerals from Diamantina, Brazil (Morteani et al. 2001), Serra de Canas, Brazil (Morteani & Ackermand 2004)...dumortieritebearing quartzites of the Serra de Canas (Brazil) does not find an equivalent in the present studied |  | | Report (volume) | | (spec. issue), 153 p., 8 maps, 13 figs., 1962. BRAZIL 16 17 18 19 20 21 22 23 24 25 26 27 28...of Paraiba and Rio Grande do Norte, northeastern Brazil, by S. C. de Almeida, W. D. Johnston, Jr., 0. H...Layered or banded chromite at Campo Formoso, Baia, Brazil, by W. D. Johnston, Jr., and H. Capper A. de Souza:...Minerac;ao e Metalurgia, v. 7, no. 41, p. 247-260, 1943; Brazil, Div. Fomento Produc;ao Mineral Avulso 52, 37 p...Cristalina, Estado de Goias, by W. D. Johnston, Jr.: Brazil, Div. Fomento Produc;ao Mineral Avulso 57, 28 p |  | | Journal (issue) | | ...............................447 by R. Grant Pyrite crystals from Soria and La R ioja P rovin ces,...Sevillano O n right an gle b en d s in filiform pyrite .................................................& C. A. Francis P yrop h yllite from Ibitiara, Brazil .................................................emphasis or clarity, and (d) proper names, e.g., mine levels. 8. Credits. Caption data for specimen photos...the New Nevada mine in Batopilas, Chihuahua, Mexico and legrandite from the Ojuela mine in Mapimi, Durango |  | | Journal (article/letter/editorial) | | temperatures increased markedly in the vicinity of the mine dike, thereby indicating that the fluid inclusions...inclusions are present near the contact with the mine dike, which is consistent with their reequilibration...mineralization age that predates emplacement of the mine dike and the regional dike swarm, which is presumed...galena, mal = malachite, mc = microcline, py = pyrite, sph = sphalerite; - = not applicable 4 4 3A...dissolution-replacement bands of dolomite, sphalerite, pyrite, and galena. (C). Void-filling and minor replacive |
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