 | | Report (issue) | | Depositsof the Western Serra doCurral,MinasGerais,BrazilGEOLOGICAL SURVEY PROFESSIONAL PAPER 341-G...the DepartamentoNacional da Producao Mineral ofBrazil underthe auspices of the Agency for International...Curral,MinasGerais,BrazilBy GEORGE C. SIMMONSGEOLOGY AND MINERAL RESOURCES OF PARTS OFMINAS GERAIS...GERAIS,BRAZILGEOLOGICALSURVEY PROFESSIONAL PAPER341-GPrepared in cooperation with the Departamento...DepartamentoNacional da Producao Mineral ofBrazil underthe auspices of the Agency for InternationalDevelopment |  | | Report (volume) | | workshop held December 1-10,1986, in Belo Horizonte,Brazil, was hosted by theInstitute Brasileiro de Mineragao...Quintas, Mineragao Morro Velho Club, Nova Lima,BrazilDecember 4,19861. Sergio C. Guedes2. Antonio...Quadrilatero Ferrffero,MinasGerais,BrazilWorkshop:Belo Horizonte,Brazil, December 1-10,1986Sponsors:...DataGold deposits related to greenstone belts inBrazil Deposit modelingworkshop; Part A Excursions /...deposits related to greenstone belts inBrazil, Belo Horizonte,Brazil, 1986, by Charles H. Thorman and Eduardo |  | | Report (issue) | | Resources ofthe Pico de Itabirito DistrictMinasGerais,BrazilGEOLOGICALSURVEYPROFESSIONALPrepared...the DepartamentoNacional da Producao Mineral ofBrazil underthe auspices of the Agency for International...DistrictMinasGerais,BrazilBy ROBERTS M. WALLACEGEOLOGY AND MINERAL RESOURCES OF PARTS OFMINAS GERAIS...GERAIS,BRAZILGEOLOGICALSURVEYPROFESSIONALPAPER341-FPrepared in cooperation with the Departamento...DepartamentoNacional da Producao Mineral ofBrazil underthe au-spices of the Agency for InternationalDevelopment |  | Mendes, Julio Cezar, Ávila, Ciro Alexandre, Pereira, Ronaldo Mello, Heilbron, Mônica P.L., Moura, Candido A.V. (2006) 207Pb/206Pb-ages of zircons from syn-collisional I-type porphyritic granites of the central Ribeira belt, SE Brazil.Gondwana Research, 9 (3) 326-336doi:10.1016/j.gr.2005.11.004 | Journal (article/letter/editorial) | | porphyriticgranites of the central Ribeira belt, SEBrazilJulio Cezar Mendes a,*,1, Ciro Alexandre Ávila...central segment of the Ribeira belt, southeastBrazil, several foliated porphyritic granitic bodies intrude...theMaromba, Pedra Selada, Serra do Lagarto andFunil porphyritic I-type granites provide profound similarities...except for the distinct geochemicalbehavior of theFunil Granite, perhaps related to a different crustal...more than 1000 km along the southeastern coast ofBrazil (Fig.1). It developed as the result of the amalgamation |  | | Report (issue) | | and Ore Depositsof the Alegria District,MinasGerais,BrazilGEOLOGICAL SURVEY PROFESSIONAL PAPER 341-J...the DepartamentoNational da Producao Mineral ofBrazil underthe auspices of the Agency for International...District,MinasGerais,BrazilBy CHARLES H. MAXWELLGEOLOGY AND MINERAL RESOURCES OF PARTS OFMINAS GERAIS...GERAIS,BRAZILGEOLOGICALSURVEYPROFESSIONALPAPER341-JPrepared in cooperation with the Departamento...DepartamentoNational da Producao Mineral ofBrazil underthe auspices of the Agency for InternationalDevelopment |  | | Report (issue) | | Developmentof the Quadrilatero FerriferoMinasGerais,BrazilGEOLOGICAL SURVEY PROFESSIONAL PAPER 641-A...the DepartamentoNacional da Producao Mineral ofBrazilunder the auspices of theAgency for International...Developmentof the Quadrilatero FerriferoMinasGerais,BrazilBy JOHN VAN N. DORR 2dREGIONAL GEOLOGY...GEOLOGY OF THE QUADRILATERO FERRIFERO,MINASGERAIS,BRAZILGEOLOGICALSURVEYPROFESSIONALPAPER641-A...the DepartamentoNacional da Producao Mineral ofBrazilunder the auspices of theAgency for International |  | | Report (issue) | | the DepartmentoNational da Produ^ao Mineral ofBrazilunder the auspices of theAgency for International...Ferrifero,MinasGerais,BrazilBy NORMAN HERZREGIONAL GEOLOGY OF THE QUADRILATERO FERRIFERO,MINAS GERAIS...GERAIS,BRAZILGEOLOGICAL SURVEY PROFESSIONALPrepared in cooperation with the DepartmentoNacional da Produqao...Produqao Mineral ofBrazilunder the auspices of theAgency for International Development of theUnited...Ferrifero,MinasGerais,Brazil.(Regional geology of the Quadrilatero Ferrifero,MinasGerais,Brazil) (Geological |  | Maheshwari, Anil, Sial, Alcides N., Gaucher, Claudio, Bossi, Jorge, Bekker, Andrey, Ferreira, Valderez P., Romano, Antonio W. (2010) Global nature of the Paleoproterozoic Lomagundi carbon isotope excursion: A review of occurrences in Brazil, India, and Uruguay.Precambrian Research, 182 (4) 274-299doi:10.1016/j.precamres.2010.06.017 | Journal (article/letter/editorial) | | carbon isotope excursion:A review of occurrences inBrazil, India, and UruguayAnil Maheshwari a,∗ , Alcides...Department of Geology, UFPE, Recife, PE 50740-530,BrazilDepartamento de Geología, Facultad de Ciencias...Geosciences, UFMG, Belo Horizonte, MG 30430-120,Brazilbca r t i c l ei n f oArticle history:Received...Keywords:Lomagundi excursionCarbon isotopesBrazilUruguayIndiaa b s t r a c tPositive carbon...Aravalli Supergroup(northwestern India), theMinas Supergroup (Brazil), and new sections of the Paso Severino |  | | Journal (article/letter/editorial) | | hematite ore at the Quadrilátero Ferrífero,MinasGerais,Brazil and its possible genetic significanceF...deposits of high-grade, compact hematite ofQF,MinasGerais,Brazil, averaging 68%Fe and< 1%SiO2,totalling...Fernandinho, Galinheiro, Mina do Pico e Sapecado(MBRmine properties). Apart from the initially estimated...Janeiro), Ilha do Fundão, Rio de JaneiroRJ 21949-900,Brazil (frpires@geologia.ufrj.br). Based on acontribution...hematite ore at the Quadrilátero Ferrífero,MinasGerais,Brazil and its possible genetic significance1 |  | | Journal (article/letter/editorial) | | Tourmaline-BearingGoldDeposit' Passagemde Mariana (Brazil)ROlAnDFnE•SCI•I•A•D P•AbstractA facies...State ofMinasGerais, Lindgren, 1933; and Emmons,1937).of the ore was considereddue toBrazil. Exploited...StratigraphyFleischer(1971) is shownin Table 1.Themine of Passagemde Mariana is situated7The baseof the...Rocksin the QuadrilfiteroFerrlfero(MinasGerais,Brazil)Accordingto Dorr (1969)and SlightlyModifiedby...J. V. N. et al. (1969)FmLithologyItacolomiMinasOrthoquartzite, protoquartzite, conglomerate, grit |  | | Report (issue) | | Horizonte, Ibirite, andMacacos QuadranglesMinasGerais,BrazilGEOLOGICAL SURVEY PROFESSIONAL PAPER 341-D...the DepartamentoNacional da Producao Mineral ofBrazil underthe auspices of the International Cooperation...QuadranglesMinasGerais,BrazilBy JOEL B. POMERENEGEOLOGY AND MINERAL RESOURCES OF PARTS OFMINAS GERAIS...GERAIS,BRAZILGEOLOGICAL SURVEY PROFESSIONAL PAPER 341-DPrepared in cooperation with the Departamento...DepartamentoNacional da Producao Mineral ofBrazil underthe auspices of the International CooperationAdministration |  | | Journal (issue) | | managerFamous mineral localities: the Broken Hillmine,Zam bia..............................................351Famous mineral localities: the Cruzeiromine,past and present ................................WarrenA new find of crystallized rose quartz inMinas G e ra is ........................................B-2120 SchotenCOVER: ELBAITE onquartz fromMinasGerais,Brazil. Thecrystal is 8.5 mm inwidth. Photo by...Kitwe, ZambiaHISTORYThe Broken Hill lead-zincmine is located near the town ofKabwe, 140 km north |  | De Oliveira, Ester Figueiredo, Castañeda, Cristiane, Eeckhout, Sigrid Griet, Gilmar, Messias Menezes, Kwitko, Rogério Ribeiro, De Grave, Eddy, Botelho, Nilson Francisquini (2002) Infrared and Mössbauer study of Brazilian tourmalines from different geological environments.American Mineralogist, 87 (8) 1154-1163doi:10.2138/am-2002-8-914 | Journal (article/letter/editorial) | | N. CP 941 CEP 30123-970, Belo Horizonte,MinasGerais,Brazil2Instituto de Geociências, Universidade...3173 CEP 30140-970, Brasília, Distrito Federal,Brazil3Department of Subatomic and Radiation Physics...de Ouro Preto, CEP 35400-000 Ouro Preto,MinasGerais,Brazil5Companhia Vale do Rio Doce, CVRD, BR 262-Km...P.O. Box 09 CEP 33010-970, Santa Luzia,MinasGerais,BrazilABSTRACTInfrared (IR) spectra in the OH...and hydrothermal deposits in the state ofMinasGerais,Brazil. In the magmatic environment, samples of |  | Chauvet, A., Faure, M., Dossin, I., Charvet, J. (1994) A three-stage structural evolution of the Quadrilátero Ferriífero: consequences for the Neoproterozoic age and the formation of gold concentrations of the Ouro Preto area, Minas Gerais, Brazil.Precambrian Research, 68 (1) 139-167doi:10.1016/0301-9268(94)90069-8 | Journal (article/letter/editorial) | | goldconcentrations of the Ouro Preto area,MinasGerais,BrazilA. C h a u v e t , M . F a u r e , I. D...Craton (Brazil), where three majorProterozoic supracrustal units (the "Rio das Velhas", "Minas" and "Itacolomi"...characterize this event. Occurrence of muscovite,biotite and more scarcely sillimaniteindicate that deformation...Main Mineralized Contact (located between the "Minas" and "Riodas Velhas" Supergroups), is found within...IntroductionThe Quadril~itero Ferrifero (MinasGerais,Brazil), like most of the Archaean greenstonebelts |  | Coelho, Mariana Barroso, Trouw, Rudolph Allard Johannes, Ganade, Carlos E., Vinagre, Rodrigo, Mendes, Júlio Cezar, Sato, Kei (2017) Constraining timing and P-T conditions of continental collision and late overprinting in the Southern Brasília Orogen (SE-Brazil): U-Pb zircon ages and geothermobarometry of the Andrelândia Nappe System.Precambrian Research, 292. 194-215doi:10.1016/j.precamres.2017.02.001 | Journal (article/letter/editorial) | | overprinting in the Southern Brasília Orogen (SE-Brazil): U-Pb zircon ages andgeothermobarometry of the...overprinting in the Southern Brasília Orogen(SE-Brazil): U-Pb zircon ages and geothermobarometry of the...overprinting in theSouthern Brasília Orogen (SE-Brazil): U-Pb zircon ages and geothermobarometry of the...Rio de Janeiro,Brazil2. Serviço Geológico do Brasil – SBG/CPRM, Rio de Janeiro,Brazil3. Universidade...Universidade de São Paulo – USP, São Paulo,BrazilABSTRACTThe Andrelândia Nappe System (ANS) is an important |  | | Report (issue) | | Monlevadeand Rio PiracicabaQuadrangles,MinasGeraisBrazilGEOLOGICALSURVEY PROFESSIONAL PAPER 341-E...the DepartamentoNacional da Producao Mineral ofBrazil underthe auspices of the Agency for International...Quadrangles,MinasGeraisBrazilBy ROBERT G. REEVESGEOLOGY AND MINERAL RESOURCES OF PARTS OFMINASGERAIS, BRAZIL...the DepartamentoNacional da Producao Mineral ofBrazil underthe auspices of the Agency for International...____________Itabirite. - _______________________Minas Series_-_--_____--_______--___-__-_Caraga Grou |  | | Report (issue) | | the Nova Lima andRio Acima QuadranglesMinasGerais,BrazilGEOLOGICAL SURVEY PROFESSIONAL PAPER 341-A...the DepartamentoN acional da Producao Mineral ofBrazil underthe auspices of the International Cooperation...QuadranglesMinasGerais,BrazilBy JACOB E. GAIRGEOLOGY AND MINERAL RESOURCES OF PARTS OFMINASGERAIS, BRAZIL...the DepartamentoNacional da Producao Mineral ofBrazil underthe auspices of the International Cooperation...rock (lapa53Gold623seca) 6536Morro Velhomine26Sericitic quartzite and schistose conglomerate6 |  | | Report (issue) | | MineralResources of theBarao de Cocais AreaMinasGerais,BrazilGEOLOGICAL SURVEY PROFESSIONAL PAPER 341-H...the DepartamentoNacional da Producao Mineral ofBrazil underthe auspices of the Agency for International...AreaMinasGerais,BrazilBy GEORGE C. SIMMONSGEOLOGY AND MINERAL RESOURCES OF PARTS OFMINAS GERAIS...GERAIS,BRAZILGEOLOGICAL SURVEY PROFESSIONAL PAPER 341-HPrepared in cooperation with the Departamento...DepartamentoNacional da Producao Mineral ofBrazil underthe auspices of the Agency for InternationalDevelopment |  | | Journal (issue) | | and Anthony R. KampfGem Pegmatites ofMinasGerais,Brazil: Exploration,Occurrence, and Aquamarine...the northeastern section of the state ofMinas Gemis,Brazil. The history ofgem exploration and m i n...from the Pioneermine in the Te6filo Otoni-Marambaia pegmatite district ofMinasGerais. As is common with...gem pegmatite regions of the 20th century:MinasGerais,Brazil.With these articles, we hope to take you...what pegmatite gems have meanthistorically inBrazil and the production of one very important pegmatite |  | | Report (issue) | | Igneous Rocksof the Quadrilatero Ferrifero,MinasGerais,BrazilGEOLOGICALSURVEY PROFESSIONAL PAPER 641-B...the DepartmentoNacional da Producao Mineral ofBrazilunder the auspices oj theAgency for International...Ferrifero,MinasGerais,BrazilBy NORMAN HERZREGIONAL GEOLOGY OF THE QUADRILATERO FERRlFERO,MINAS GERAIS...GERAIS,BRAZILGEOLOGICALSURVEY PROFESSIONAL PAPER641-BPrepared in cooperation with the Departmento...DepartmentoNacional da Producao Mineral ofBrazilunder the auspices of theAgency for International Development |  | | Report (issue) | | and Ore Depositsof the Itabira DistrictMinasGerais,BrazilGEOLOGICALSURVEYPROFESSIONALPrepared...and Ore Depositsof the Itabira DistrictMinasGerais,BrazilBy JOHN VAN N. DORR 20 and ALUIZIO LICINIO...GEOLOGY AND MINERAL RESOURCES OF PARTS OFMINASGERAIS,BRAZILGEOLOGICAL SURVEY PROFESSIONAL PAPER 341-C...the DepartamentoNacional da Producao Mineral ofBrazil underthe auspices of the International Cooperation..._____Thickness and contacts..________________Minas series ________________________________Cara§a group |  | | Report (issue) | | Cover: Topaz, 3.5 cm tallCapaoMine, Ouro Preto,MinasGerais,BrazilMax and Jon Sigerman collection...OccurrenceMIKE MENZIES22. Topaz from Utah's MaynardMineRYAN BOWLING26. Volodarsk-VolynskiPETER LYCKBERG...58. Zimbabwe Blue Topaz: St. Anne'sMineJAN KANIS60.Brazil: The Land of TopazDIETMAR SCHWARZ68...locality inBrazil (Sinkankas, 1981). Twogemmy crystals from the Te6filo Ot6ni region inMinasGerais, Brazil...three huge specimens from Te6filo Ot6ni,MinasGerais,Brazil, that are housed at the Smithsonian Institution |  | | Report (issue) | | CampoDom Bosco, and OuroBranco QuadranglesMinasGerais,BrazilGEOLOGICALSURVEY PROFESSIONAL PAPER 341-B...the DepartamentoNacional da Producao Mineral ofBrazil underthe auspices of the International Cooperation...QuadranglesMinasGerais,BrazilBy ROBERT F. JOHNSONGEOLOGY AND MINERAL RESOURCES OF PARTS OFMINAS GERAIS...GERAIS,BRAZILGEOLOGICALSURVEYPROFESSIONALPAPER341-BPrepared in cooperation with the Departamento...DepartamentoNational da Producao Mineral ofBrazil underthe auspices of the International Cooperation Administration |  | Caxito, Fabrício de Andrade, Halverson, Galen P., Uhlein, Alexandre, Stevenson, Ross, Gonçalves Dias, Tatiana, Uhlein, Gabriel J. (2012) Marinoan glaciation in east central Brazil.Precambrian Research, 200. 38-58doi:10.1016/j.precamres.2012.01.005 | Journal (article/letter/editorial) | | com/locate/precamresReviewMarinoan glaciation in east centralBrazilFabrício de Andrade Caxito a,b,∗ , Galen P. Halverson...Federal deMinasGerais, Av. Antônio Carlos 6627, CEP 31270-901, Belo Horizonte, MG,BrazilDépartement...of a Neoproterozoic glaciation in east centralBrazil are represented by thin diamictite layers (Jequitaí...deposited afterthe Marinoan glaciation in east centralBrazil.© 2012 Elsevier B.V. All rights reserved.Contents...of the Neoproterozoic glaciation in east centralBrazil . . . . . . . . . . . . . . . . . . . . . . . |  | | Report (issue) | | Mineral Resourcesof the Congonhas DistrictMinasGerais,BrazilGEOLOGICALSURVEY PROFESSIONAL PAPER 290...the Departamento N acionalda Produfao Mineral ofBrazil under the auspices of theInternational Cooperation...Mineral Resourcesof the Congonhas DistrictMinasGerais,BrazilBy PHILIP W. GUILDGEOLOGICALSURVEY...Departamento N acional da Produ~ao M,ineralofBrazil under the auspices of the InternationalCooperation...__________________ _Iron region of centralMinasGerais _______________ _Congonhas district_ ________________________ |
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