 | | Journal (article/letter/editorial) | | Iron-Formations of the Quadrilátero Ferrífero, Minas Gerais, Brazil C. KLEIN† Department of Earth and Planetary...Universidade Federal de Minas Gerais, Belo Horizonte, CEP 31270-901, Brazil Abstract This study presents...different iron-formations in the Early Proterozoic Minas Supergroup of the Quadrilátero Ferrífero. These...altered iron-formation precursors to the major hematite-rich ore deposits of the region. Since the 17th...it being the best-studied Precambrian region in Brazil. The banded iron-formations, locally known as itabirites |  | Spier, Carlos Alberto, de Oliveira, Sonia Maria Barros, Rosière, Carlos Alberto, Ardisson, José Domingos (2008) Mineralogy and trace-element geochemistry of the high-grade iron ores of the Águas Claras Mine and comparison with the Capão Xavier and Tamanduá iron ore deposits, Quadrilátero Ferrífero, Brazil. Mineralium Deposita, 43 (2) 229-254 doi:10.1007/s00126-007-0157-z | Journal (article/letter/editorial) | | geochemistry of the high-grade iron ores of the Águas Claras Mine and comparison with the Capão Xavier and Tamanduá...Tamanduá iron ore deposits, Quadrilátero Ferrífero, Brazil Carlos Alberto Spier & Sonia Maria Barros de Oliveira...Quadrilátero Ferrífero (QF), southeastern region of Brazil, where metamorphosed and heterogeneously deformed...into high- (Fe >64%) and lowgrade (30%hematite ores. Based on their mineralogical composition...itabirite. Unlike other mines in the QF, the Águas Claras Mine contained mainly high-grade ores hosted within |  | | Journal (article/letter/editorial) | | iron ore in the Quadrilátero Ferrífero, Minas Gerais, Brazil C. A. Spier 1 & A. Levett 1 & C. A. Rosière...Antônio Carlos 6627, Belo Horizonte, Minas Gerais 31270-901, Brazil defined the ferruginous duricrust...of itabirite in the Quadrilátero Ferrífero (QF), Minas GeraisBrazil, as canga (derived from the indigenous...across the globe (e.g. QF and Carajás regions, Brazil; Nimba and Simandou ranges; Guinea; and the Hamersley...and reduce mine waste (e.g. Hamersley Province, Australia; Quadrilátero Ferrífero, Brazil). In some mining |  | Hensler, Ana-Sophie, Hagemann, Steffen G., Brown, Philip E., Rosière, Carlos A. (2014) Using oxygen isotope chemistry to track hydrothermal processes and fluid sources in itabirite-hosted iron ore deposits in the Quadrilátero Ferrífero, Minas Gerais, Brazil. Mineralium Deposita, 49 (3) 293-311 doi:10.1007/s00126-013-0486-z | Journal (article/letter/editorial) | | deposits in the Quadrilátero Ferrífero, Minas Gerais, Brazil Ana-Sophie Hensler & Steffen G. Hagemann...Heidelberg 2013 Abstract The Quadrilátero Ferrífero, Brazil, is presently the largest accumulation of single...hypogene highgrade iron ore bodies at, e.g. the Águas Claras, Conceição, Pau Branco and Pico deposits revealed...from oldest to youngest: magnetite → martite (hematite pseudomorph after magnetite) → granoblastic (recrystallised)...<100 μm) → specular (coarse-grained, >100 μm) hematite. Laserfluorination oxygen isotope analyses of |  | | Journal (article/letter/editorial) | | specular hematite from Tilkerode, Harz, Germany: implications for the genesis of hydrothermal hematite and...comparison with the Quadrilátero Ferrífero of Minas Gerais, Brazil Alexandre Raphael Cabral & Carlos Alberto...Germany, has specular hematite enclosed in clausthalite (PbSe). The specular hematite has Ti and V in amounts...68 ppm). The Tilkerode hematite serves as a reference for hydrothermal hematite formed at relatively low...of the Tilkerode hematite is compared with that of two generations of specular hematite from itabirite-hosted |  | | Journal (article/letter/editorial) | | Distribution of hard hematite ore at the Quadrilátero Ferrífero, Minas Gerais, Brazil and its possible genetic...genetic significance F. R . M . Pires The hematite deposits of Quadrilátero Ferrífero (QF) are hosted...widely distributed at QF and include the hard hematite ore bodies. However, considerable variations in...banding and lamination in the thin bedded, compact hematite ore, apparently reflects the original layering...completely replaced itabirite. The structure of the hematite ore deposits varies from almond shaped, rootless |  | | Journal (article/letter/editorial) | | the Pau Branco Deposit, Quadrilátero Ferrífero, Brazil— Implications for Fluid-Rock Interaction During...70910-900, Brazil de Geociências, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais 31270-901...31270-901, Brazil for Exploration Targeting, School of Earth Sciences, University of Western Australia,...Branco iron ore deposit, Quadrilátero Ferrífero, Brazil. The phyllite and iron ore of Pau Branco extend...microplaty hematite replaces chlorite and carbonate in the phyllite; (3) granoblastic hematite is a rec |  | | Journal (article/letter/editorial) | | IRON-FORMATION OF THE ARCHEAN CARAJÁS FORMATION, NORTHERN BRAZIL CORNELIS KLEIN † Department of Earth and Planetary...Universidade Federal de Minas Gerais, Belo Horizonte, CEP 31270-901, Brazil Abstract The Carajás area...in the southeastern part of the state of Pará, Brazil, and includes one of the largest iron ore deposits...“jaspilite pods” (protore for the deposit) in the hematite open pit mines and is also intersected in places...Isua, Greenland, and the Nova Lima Group of Quadrilátero Ferrífero, Brazil. However, these background |  | Berni, G. V., Heinrich, C. A., Lobato, L. M., Wall, V. J., Rosiere, C. A., Freitas, M. A. (2014) The Serra Pelada Au-Pd-Pt Deposit, Carajas, Brazil: Geochemistry, Mineralogy, and Zoning of Hydrothermal Alteration. Economic Geology, 109 (7) 1883-1899 doi:10.2113/econgeo.109.7.1883 | Journal (article/letter/editorial) | | 1883–1899 The Serra Pelada Au-Pd-Pt Deposit, Carajás, Brazil: Geochemistry, Mineralogy, and Zoning of Hydrothermal...Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, Belo Horizonte, Brazil 4 Colossus Minerals...oxide-hosted copper-gold deposits of the Amazon craton in Brazil. The unusual low-temperature hydrothermal mineralization...epigenetic, hosted by metasedimentary rocks of the Águas Claras Formation and structurally localized in the...is associated with intense argillic alteration, hematite breccias, and silicification, with the highest |  | | Journal (article/letter/editorial) | | ENRICHMENT IN THE SERRA PELADA Au-Pd-Pt DEPOSIT, PARÁ, BRAZIL ALEXANDRE RAPHAEL CABRAL,1,2,† RAY BURGESS,3 AND...triggered the gold rush to Serra Pelada in northern Brazil. The mineralization occurs in goethite-rich tectonic...which tabular hematite is spatially associated on a micrometric scale. The tabular hematite is coarsely... The presence of coarsely crystalline tabular hematite constrains the metalliferous overprint to temperatures...spectacular gold rush in the Amazonia region of Brazil (Fig. 1). In the early 1980s, up to one hundred |  | Grainger, Christian J., Groves, David I., Tallarico, Fernando H.B., Fletcher, Ian R. (2008) Metallogenesis of the Carajás Mineral Province, Southern Amazon Craton, Brazil: Varying styles of Archean through Paleoproterozoic to Neoproterozoic base- and precious-metal mineralisation. Ore Geology Reviews, 33 (3) 451-489 doi:10.1016/j.oregeorev.2006.10.010 | Journal (article/letter/editorial) | | Carajás Mineral Province, Southern Amazon Craton, Brazil: Varying styles of Archean through Paleoproterozoic...124, Bairro Beira Rio, Parauapebas, PA 68515-000, Brazil Centre for Global Metallogeny and Centre for Exploration...Universidade Estadual de Campinas, Campinas, SP, Brazil Received 31 January 2006; accepted 8 October 2006...Fe-oxide Cu–Au deposits. These include the Breves, Águas Claras, Gameleira and Estrela deposits which are largely...southeastern margin of the Southern Amazon Craton in Brazil (Fig. 1). Two Archean tectonic blocks comprise |  | Cabral, A.R., Creaser, R.A., Nägler, T., Lehmann, B., Voegelin, A.R., Belyatsky, B., Pašava, J., Seabra Gomes, A.A., Galbiatti, H., Böttcher, M.E., Escher, P. (2013) Trace-element and multi-isotope geochemistry of Late-Archean black shales in the Carajás iron-ore district, Brazil. Chemical Geology, 362. 91-104 doi:10.1016/j.chemgeo.2013.08.041 | Journal (article/letter/editorial) | | black shales in the Carajás iron-ore district, Brazil A.R. Cabral, R.A. Creaser, T. Nägler, B. Lehmann...black shales in the Carajás iron-ore district, Brazil, Chemical Geology (2013), doi: 10.1016/j.chemgeo...black T shales in the Carajás iron-ore district, Brazil IP Cabral, A.R.1, Creaser, R.A.2, Nägler, T.3...34000-000 Nova Lima-MG, Brazil; AC 5 Present address: Geo-T, 34000-000 Nova Lima-MG, Brazil 8 Iron...Iron Ore Exploration, VALE, 34000-000 Nova Lima-MG, Brazil 9 Geochemistry & Stable Isotope Geochemistry |  | Melo, Gustavo H.C. de, Monteiro, Lena V.S., Xavier, Roberto P., Moreto, Carolina P.N., Arquaz, Raul M., Silva, Marco Antonio Delinardo (2019) Evolution of the Igarapé Bahia Cu-Au deposit, Carajás Province (Brazil): Early syngenetic chalcopyrite overprinted by IOCG mineralization. Ore Geology Reviews, 111. 102993 doi:10.1016/j.oregeorev.2019.102993 | Journal (article/letter/editorial) | | Igarapé Bahia Cu-Au deposit, Carajás Province (Brazil): early syngenetic chalcopyrite overprinted by...Igarapé Bahia Cu-Au deposit, Carajás Province (Brazil): early syngenetic chalcopyrite overprinted by...Igarapé Bahia Cu-Au deposit, Carajás Province (Brazil): early syngenetic chalcopyrite overprinted by...Pandiá Calógeras, 51, 13083-870 Campinas (SP), Brazil 2 Institute of Geosciences, University of São...(USP), Rua do Lago, 562, 05508-080 São Paulo (SP), Brazil *corresponding author Abstract The Igarapé Bahia |  | Cabral, Alexandre Raphael, Lehmann, Bernd, Gomes, Antônio Augusto Seabra, Pašava, Jan (2016) Episodic negative anomalies of cerium at the depositional onset of the 2.65-Ga Itabira iron formation, Quadrilátero Ferrífero of Minas Gerais, Brazil. Precambrian Research, 276. 101-109 doi:10.1016/j.precamres.2016.01.031 | Journal (article/letter/editorial) | | iron formation, Quadrilátero Ferrı́fero of Minas Gerais, Brazil Author: Alexandre Raphael Cabral Bernd Lehmann...iron formation, Quadrilátero Ferrífero of Minas Gerais, Brazil, Precambrian Research (2016), http://dx...formation, Quadrilátero 12 Ferrífero of Minas Gerais, Brazil ip t 10 cr 13 Alexandre Raphael Cabral...Clausthal-Zellerfeld, Germany b Geo-T, 34000-000 Nova Lima-MG, Brazil c Czech Geological Survey, 152 00 Praha...Itabirite, in the Quadrilátero Ferrífero 26 of Minas Gerais, Brazil. The magnetite bands have low (non-crustal) |  | Ribeiro, Diniz, Moraes, Israel, Kwitko-Ribeiro, Rogerio, Braga, Deivid, Spier, Carlos, Santos, Pedro (2020) From Fresh Itabirites and Carbonates to Weathered Iron Ore: Mineral Composition, Density and Porosity of Different Fresh and Altered Rocks from the Quadrilátero Ferrífero, Brazil. Minerals, 11 (1) 29 doi:10.3390/min11010029 | Journal (article/letter/editorial) | | Altered Rocks from the Quadrilátero Ferrífero, Brazil Diniz Ribeiro 1, *, Israel Moraes 1 , Rogerio Kwitko-Ribeiro...Altered Rocks from the Quadrilátero Ferrífero, Brazil. Minerals 2021, 11, 29. https://doi.org/10.3390/...Resource Management, Escritório de Águas Claras, Nova Lima, MG 34.006-200, Brazil; israel.moraes@vale.com (I...Desenvolvimento Mineral, Santa Luzia, MG 33.040-900, Brazil; rogerio.kwitko@vale.com School of Earth and Environmental...Independent Consultant, Itabira, MG 35.900-360, Brazil; pedroapoloniodossantos@gmail.com Correspondence: |  | Berni, Gabriel V., Heinrich, Christoph A., Lobato, Lydia M., Wall, Vic (2016) Ore mineralogy of the Serra Pelada Au-Pd-Pt deposit, Carajás, Brazil and implications for ore-forming processes. Mineralium Deposita, 51 (6) 781-795 doi:10.1007/s00126-015-0635-7 | Journal (article/letter/editorial) | | of the Serra Pelada Au-Pd-Pt deposit, Carajás, Brazil and implications for ore-forming processes Gabriel...the eastern border of the Amazon craton, northern Brazil. The rocks at Serra Pelada have experienced intense...zone of a recumbent syncline, comprising zones of hematite, chlorite-carbon, argillic, and siliceous alteration...minerals are quartz, kaolinite, sericite, amesite, hematite, monazite, florencite and variable amounts of...Universidade Federal de Minas Gerais, Av. Antônio Carlos, Belo Horizonte 6627, Brazil 4 Colossus Minerals |  | Dreher, Ana M., Xavier, Roberto P., Taylor, Bruce E., Martini, Sérgio L. (2008) New geologic, fluid inclusion and stable isotope studies on the controversial Igarapé Bahia Cu–Au deposit, Carajás Province, Brazil. Mineralium Deposita, 43 (2) 161-184 doi:10.1007/s00126-007-0150-6 | Journal (article/letter/editorial) | | Igarapé Bahia Cu–Au deposit, Carajás Province, Brazil Ana M. Dreher & Roberto P. Xavier & Bruce E. Taylor...Igarapé Bahia Cu–Au deposit in the Carajás Province, Brazil, is hosted by steeply dipping metavolcanosedimentary...Geological Survey of Brazil, Av. Pasteur 404, 22290-240 Rio de Janeiro, RJ, Brazil e-mail: amdreher@rj...UNICAMP, Caixa Postal 6152, 13083-970 Campinas, SP, Brazil e-mail: xavier@ige.unicmap.br B. E. Taylor Geological...de Almeida 15/201, 22291-000 Rio de Janeiro, RJ, Brazil e-mail: martini.s@uol.com.br Mineralization is |  | | Journal (article/letter/editorial) | | now operating in the production of iron ore in Brazil currently employ or are planning to employ some...concentration operations currently employed in Brazil and shows how ore mineralogy plays a fundamental...present only in the form of crystal relicts within hematite grains, it may lead to the selection of either... MBR SA, Avenue de Ligação, 3580, Nova Lima, 34000-000 MG, Brazil; A. C. Araujo (armando@demin.ufmg.br)...Espírito Santo, 35, Belo Horizonte, 30160-039 MG, Brazil. Based on a contribution to the conference on Iron |  | | Journal (article/letter/editorial) | | iron ore from the Quadrilátero Ferrífero, Minas Gerais, Brazil C.A. Spier, A. Kumar, A.P.L. Nunes PII:...iron ore from the Quadrilátero Ferrífero, Minas Gerais, Brazil, Ore Geology Reviews (2020), doi: https://doi...iron ore from the Quadrilátero Ferrífero, Minas Gerais, Brazil Spier, C. A.1, Kumar, A.1 and Nunes, A...Tomé de Souza 1065, Belo Horizonte, Minas Gerais, 30140-131, Brazil * Corresponding author, e-mail: c...waters. The Quadrilátero Ferrífero (QF) of Minas Gerais, Brazil, is worldly known for its tier 1 iron ore |  | Berni, Gabriel V., Heinrich, Christoph A., Wälle, Markus, Wall, Victor J. (2019) Fluid geochemistry of the Serra Pelada Au-Pd-Pt deposit, Carajás, Brazil: Exceptional metal enrichment caused by deep reaching hydrothermal oxidation. Ore Geology Reviews, 111. 102991 doi:10.1016/j.oregeorev.2019.102991 | Journal (article/letter/editorial) | | of the Serra Pelada Au-Pd-Pt Deposit, Carajás, Brazil: Exceptional Metal Enrichment Caused by Deep Reaching...of the Serra Pelada Au-Pd-Pt Deposit, Carajás, Brazil: Exceptional Metal Enrichment Caused by Deep Reaching...OF THE SERRA PELADA Au-Pd-Pt DEPOSIT, CARAJÁS, BRAZIL: EXCEPTIONAL METAL ENRICHMENT CAUSED BY DEEP REACHING...Jequitinhonha, Campus JK, 39100-000, Diamantina, Brazil † - Deceased on 26/09/2017, Colossus Mineral Inc...spatially separated chlorite – carbon (reduced) and hematite (oxidized) alteration zones. The mineralized zones |  | Cabral, Alexandre Raphael, Wiedenbeck, Michael, Rios, Francisco Javier, Seabra Gomes, Antônio Augusto, Rocha Filho, Orlando Garcia, Jones, Richard David (2012) Talc mineralisation associated with soft hematite ore, Gongo Soco deposit, Minas Gerais, Brazil: petrography, mineral chemistry and boron-isotope composition of tourmaline. Mineralium Deposita, 47 (4) 411-424 doi:10.1007/s00126-011-0374-3 | Journal (article/letter/editorial) | | mineralisation associated with soft hematite ore, Gongo Soco deposit, Minas Gerais, Brazil: petrography, mineral chemistry...Talc mineralisation occurs as hematite–talc schist between soft hematite ore and dolomitic itabirite at...Quadrilátero Ferrífero of Minas Gerais, Brazil. The hematite–talc schist and soft hematite have a prominent Editorial...Nuclear (CDTN/CNEN), 30123-970, Belo Horizonte-MG, Brazil A. A. Seabra Gomes Jr Gerência de Exploração Mineral...Peixe, Galpão de Testemunhos, 34000-000, Nova Lima-MG, Brazil O. G. Rocha Filho Rua Ceará, 1338/701, 30150-311 |  | Lacasse, Christian Michel, Ganade, Carlos Eduardo, Mathieu, Lucie, Teixeira, Noevaldo Araújo, Lopes, Leonardo Brenguere Leão, Monteiro, Cimara Francisca (2020) Restoring original composition of hydrothermally altered Archean metavolcanic rocks of the Carajás Mineral Province (Brazil): Geodynamic implications for the transition from lid to mobile tectonics. Lithos, 372. 105647pp. doi:10.1016/j.lithos.2020.105647 | Journal (article/letter/editorial) | | metavolcanic rocks of the Carajás Mineral Province (Brazil): Geodynamic implications for the transition from...metavolcanic rocks of the Carajás Mineral Province (Brazil): Geodynamic implications for the transition from...metavolcanic rocks of the Carajás Mineral Province (Brazil): geodynamic implications for the transition from...Cimara Francisca Monteiro1 1 Geological Survey of Brazil (CPRM), Center for Technological Development (CEDES)...Survey of Brazil (CPRM), Center for Technological Development (CEDES), Avenida pr 2 f DF, Brazil. 3 |  | de Melo, Gustavo H.C., Monteiro, Lena V.S., Xavier, Roberto P., Moreto, Carolina P.N., Santiago, Erika (2019) Tracing Fluid Sources for the Salobo and Igarapé Bahia Deposits: Implications for the Genesis of the Iron Oxide Copper-Gold Deposits in the Carajás Province, Brazil. Economic Geology, 114 (4) 697-718 doi:10.5382/econgeo.4659 | Journal (article/letter/editorial) | | Oxide Copper-Gold Deposits in the Carajás Province, Brazil Gustavo H.C. de Melo,1,† Lena V.S. Monteiro,2 Roberto...Cruzeiro, s/n - Bauxita, 35400-000 Ouro Preto, Minas Gerais, Brazil of Geosciences, University of São Paulo...Rua do Lago, 562, 05508-080 São Paulo, São Paulo, Brazil of Geosciences, University of Campinas (UNICAMP)...Pandiá Calógeras, 51, 13083-870 Campinas, São Paulo, Brazil Abstract The Salobo and Igarapé Bahia iron oxide...deposits in the Carajás Province, Amazon craton, Brazil, represent hybrid examples that formed from different |  | Tallarico, F. H. B., Figueiredo, B. R., Groves, D. I., Kositcin, N., McNaughton, N. J., Fletcher, I. R., Rego, J. L. (2005) Geology and SHRIMP U-Pb Geochronology of the Igarape Bahia Deposit, Carajas Copper-Gold Belt, Brazil: An Archean (2.57 Ga) Example of Iron-Oxide Cu-Au-(U-REE) Mineralization. Economic Geology, 100 (1) 7-28 doi:10.2113/100.1.0007 | Journal (article/letter/editorial) | | Igarapé Bahia Deposit, Carajás Copper-Gold Belt, Brazil: An Archean (2.57 Ga) Example of Iron-Oxide Cu-Au-(U-REE)...Campinas, Caixa Postal 6152, 13.083-970, Campinas, SP, Brazil, and Centre for Global Metallogeny, School of Earth...Campinas, Caixa Postal 6152, 13.083-970, Campinas, SP, Brazil DAVID I. GROVES,† NATALIE KOSITCIN, NEAL J. MCNAUGHTON...Parauapebas, PA, Brazil Abstract A striking feature of the Carajás region, Brazil, is the clustering... fayalite, and/or Fe oxides (magnetite and/or hematite); (2) intense carbonate alteration (mainly siderite); |  | Moreto, Carolina Penteado Natividade, Monteiro, Lena V. S., Xavier, Roberto P., Amaral, Wagner S., dos Santos, Ticiano José S., Juliani, Caetano, de Souza Filho, Carlos Roberto (2011) Mesoarchean (3.0 and 2.86 Ga) host rocks of the iron oxide–Cu–Au Bacaba deposit, Carajás Mineral Province: U–Pb geochronology and metallogenetic implications. Mineralium Deposita, 46 (7) 789-811 doi:10.1007/s00126-011-0352-9 | Journal (article/letter/editorial) | | Calógeras, 51, CEP 13083-970 Campinas, São Paulo, Brazil e-mail: carolina.moreto@ige.unicamp.br C. Juliani...Lago, 562, CEP 05508-080 São Paulo, São Paulo, Brazil W. S. Amaral Geology Department, Federal University...of Ceará, UFC, CEP 60455-760 Fortaleza, Ceará, Brazil Introduction The Carajás Mineral Province (CMP)...located in the southern part of the Amazonian Craton (Brazil), represents one of the most well-endowed mineral...deposit is located 7 km to east of the Sossego copper mine, which was the first Carajás IOCG deposit to go |
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Águas Claras mine, Nova Lima, Minas Gerais, Brazil