 | | 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...it being the best-studied Precambrian region in Brazil. The banded iron-formations, locally known as itabirites...including dolomites, all are part of the Proterozoic Minas Supergroup with a minimum Pb/Pb age determined on |  | 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...itabirite. Unlike other mines in the QF, the Águas Claras Mine contained mainly high-grade ores hosted within...distinct types of high-grade ore occurred at the mine: soft and hard. The soft ore was the Editorial |  | | 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...Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais 31270-901, Brazil and/or the infiltration...jaspilite-hosted iron ore of Carajás in the north of Brazil, the ore bodies of the Transvaal in South Africa |  | | Journal (article/letter/editorial) | | hematite ore at the Quadrilátero Ferrífero, Minas Gerais, Brazil and its possible genetic significance F...deposits of high-grade, compact hematite of QF, Minas Gerais, Brazil, averaging 68%Fe and < 1%SiO2, totalling...QF. At least half of that tonnage is in the Águas Claras, Mutuca, Tamanduá, Capitão do Mato, Gama, Abóboras...Fernandinho, Galinheiro, Mina do Pico e Sapecado (MBR mine properties). Apart from the initially estimated...Janeiro), Ilha do Fundão, Rio de Janeiro RJ 21949-900, Brazil (frpires@geologia.ufrj.br). Based on a contribution |  | | 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...part of the Quadrilátero Ferrífero. The open-pit mine started in 1981 and has an annual production of |  | | Journal (article/letter/editorial) | | comparison with the Quadrilátero Ferrífero of Minas Gerais, Brazil Alexandre Raphael Cabral & Carlos Alberto...deposits in the Quadrilátero Ferrífero of Minas Gerais, Brazil. The first generation of specular hematite...tectonic hematitisation of dolomitic itabirite at Águas Claras and occurs as fine-grained crystals. Reconnaissance...Reconnaissance data indicate that the Águas Claras hematite is poorer in Ti and V, relative to the Tilkerode...Antônio Carlos 6627, 31270-901 Belo Horizonte, MG, Brazil B-bearing fluids that were capable of mobilising |  | 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...and near the eastern edge of the Amazon craton in Brazil. The Itacaiúnas belt comprises an Archean granitegneiss |  | 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 |  | 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: |  | 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) |  | 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 |  | 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...alteration zones. Fluid inclusions hosted by quartz and dolomite crystals from distal alteration zones and silicified |  | | 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 |  | 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) | | with soft hematite ore, Gongo Soco deposit, Minas Gerais, Brazil: petrography, mineral chemistry and boron-isotope...at Gongo Soco, Quadrilátero Ferrífero of Minas Gerais, Brazil. The hematite–talc schist and soft hematite...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...30150-311, Belo Horizonte-MG, Brazil R. D. Jones 1636 East Skyline Drive, Tucson, AZ 85178, USA Present |  | | Journal (article/letter/editorial) | | 201-C, Salvador, 40170-290, Bahia, Brazil b Geological Survey of Brazil (CPRM)-Av. Pasteur, 404, Urca, Rio...Rio de Janeiro, 22290-240, Rio de Janeiro, Brazil Received 2 May 2004; accepted 1 May 2006 Available...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 deposit |  | 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...Universidade Federal de Minas Gerais, Av. Antônio Carlos, Belo Horizonte 6627, Brazil 4 Colossus Minerals... near the eastern edge of the Amazon craton in Brazil. The deposit is hosted by a late Archean to Paleoproterozoic...Paleoproterozoic folded metasedimentary sequence named Águas Claras Formation (Nogueira et al. 1995), which consists |  | | 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... 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...in Brazil are the so called Iron Ore Quadrangle located in the southeastern state of Minas Gerais and |  | Orberger, Beate, Wagner, Christiane, Tudryn, Alina, Baptiste, Benoît, Wirth, Richard, Morgan, Rachael, Miska, Serge (2017) Iron (oxy)hydroxide and hematite micro- to nano-inclusions in diagenetic dolomite from a 2.4 Ga banded iron formation (Minas Gerais, Brazil) European Journal of Mineralogy, 29 (6) 971-983 doi:10.1127/ejm/2017/0029-2679 | Journal (article/letter/editorial) | | nano-inclusions in diagenetic dolomite from a 2.4 Ga banded iron formation (Minas Gerais, Brazil) BEATE ORBERGER1...carbonate banded iron formation of the Aguas Claras mine, from the transition of the Caûe to the Gandarela...4 Ga, Itabira Group, Brazil), is composed of porous and microsparitic dolomite, quartz, iron oxides and...occur as bands, veins and as inclusions in the dolomite crystals, whereas iron (oxy)hydroxides only occur...porous dolomite as hematite and minor goethite and/or ferrihydrite, whereas microsparitic dolomite only |  | | Journal (article/letter/editorial) | | hematite ore in the Quadrilátero Ferrífero of Minas Gerais, Brazil: petrographic evidence from the Gongo Soco...high-grade soft hematite ore from Gongo Soco, Minas Gerais, Brazil, consists of laminae of platy hematite that...in terms of hydrothermal leaching of quartz and dolomite from precursor itabirite, with goethitic alteration...Coelho Neto 32/apt 704, 22231-110 Rio de Janeiro–RJ, Brazil. Orlando Garcia Rocha Filho (orlando.rocha@cvrd...caixa postal 22, 35970-000 Barão de Cocais–MG, Brazil. Richard David Jones (rocknocker@juno.com) is at |  | 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...Archean example of this deposit group. Introduction Claras), which contain quartz veins and may or may not |  | Mendes, Mônica, Lobato, Lydia M., Kunzmann, Marcus, Halverson, Galen P., Rosière, Carlos A. (2017) Iron isotope and REE+Y composition of the Cauê banded iron formation and related iron ores of the Quadrilátero Ferrífero, Brazil. Mineralium Deposita, 52 (2) 159-180 doi:10.1007/s00126-016-0649-9 | Journal (article/letter/editorial) | | related iron ores of the Quadrilátero Ferrífero, Brazil Mônica Mendes 1,2 & Lydia M. Lobato 1 & Marcus...Springer-Verlag Berlin Heidelberg 2016 Abstract The Minas Supergroup banded iron formations (BIFs) of the...indicate hydrothermal iron contribution to the Minas basin. Iron isotope data and Ce anomalies suggest...Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais 31270-901, Brazil 2 Present address:...Desenvolvimento Mineral, Vale S.A., Santa Luzia, Minas Gerais 33.040-900, Brazil 3 Department of Earth and Planetary |  | | Journal (article/letter/editorial) | | deposits in the Quadrilátero Ferrífero, Minas Gerais, Brazil Carlos Alberto Spiera ⁎, Paulo M. Vasconcelos...Reunidas-MBR, Av. de Ligação 3580, Nova Lima, MG, 34000-000, Brazil Received 4 January 2005; received...ore deposits, Quadrilátero Ferrífero (QF), Minas Gerais, Brazil, reach depths of 150–400 m and host world-class...on banded iron-formations in the Carajás Region (Brazil) and the Hamersley Province, Western Australia...Ferrífero (QF) (literally, the Iron Quadrangle), Minas Gerais (Fig. 1), hosts one of the largest concentrations |  | Figueiredo e Silva, Rosaline C., Lobato, Lydia M., Zucchetti, Marcia, Hagemann, Steffen, Vennemann, Torsten (2020) Geotectonic signature and hydrothermal alteration of metabasalts under- and overlying the giant Serra Norte iron deposits, Carajás mineral Province. Ore Geology Reviews, 120. 103407 doi:10.1016/j.oregeorev.2020.103407 | Journal (article/letter/editorial) | | Torsten Venemann4 1 Universidade Federal de Minas Gerais, Centro de Pesquisas Prof. Manoel Teixeira da...Campus Pampulha, Belo Horizonte, MG, 31270.901, Brazil 2 Geologist, Rua Santa Clara, 175/303, Copacabana...Copacabana, Rio de Janeiro, RJ, 30140.002, Brazil 3 Centre for Exploration Targeting, School of Earth and...iron deposits in the Carajás Mineral Province, Brazil. They experienced seafloor hydrothermal alteration;...covered by clastic sedimentary rocks of the Águas Claras Formation (Araújo and Maia, 1991), which formed |  | Teixeira, N.L., Caxito, F.A., Rosière, C.A., Pecoits, E., Vieira, L., Frei, R., Sial, A.N., Poitrasson, F. (2017) Trace elements and isotope geochemistry (C, O, Fe, Cr) of the Cauê iron formation, Quadrilátero Ferrífero, Brazil: Evidence for widespread microbial dissimilatory iron reduction at the Archean/Paleoproterozoic transition. Precambrian Research, 298. 39-55 doi:10.1016/j.precamres.2017.05.009 | Journal (article/letter/editorial) | | THE CAUÊ IRON FORMATION, QUADRILÁTERO FERRÍFERO, BRAZIL: EVIDENCE FOR WIDESPREAD MICROBIAL DISSIMILATORY...THE CAUÊ IRON FORMATION, QUADRILÁTERO FERRÍFERO, BRAZIL: EVIDENCE FOR WIDESPREAD MICROBIAL DISSIMILATORY...CAUÊ IRON 2 FORMATION, QUADRILÁTERO FERRÍFERO, BRAZIL: EVIDENCE FOR WIDESPREAD 3 MICROBIAL DISSIMILATORY...de Geociências, Universidade Federal 9 de Minas Gerais (CPMTC-IGC-UFMG), Campus Pampulha, Av. Antônio...Carlos 6627, CEP 10 31270-901, Belo Horizonte, MG, Brazil 11 2 - Instituto de Geociências, Universidade |
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