 | Giovannini, Arthur L., Mitchell, Roger H., Bastos Neto, Artur C., Moura, Candido A.V., Pereira, Vitor P., Porto, Claudio G. (2020) Mineralogy and geochemistry of the Morro dos Seis Lagos siderite carbonatite, Amazonas, Brazil. Lithos, 360. 105433 doi:10.1016/j.lithos.2020.105433 | Journal (article/letter/editorial) | | geochemistry of the Morro dos Seis Lagos siderite carbonatite, Amazonas, Brazil Arthur L. Giovannini...Bento Gonçalves 9500, Porto Alegre 91501-970, RS, Brazil Department of Geology, Lakehead University, 955...Avenida Victor Barreto 2288, Canoas 92010-000, RS, Brazil d Instituto de Geociências, Universidade Federal...Federal do Pará, Rua Augusto Corrêa 1, Belém, PA, Brazil e Instituto de Geociências, Universidade Federal...Bento Gonçalves 9500, Porto Alegre 91501-970, RS, Brazil f Companhia de Pesquisa de Recursos Minerais CPRM |  | Giovannini, Arthur L., Bastos Neto, Artur C., Porto, Claudio G., Pereira, Vitor P., Takehara, Lucy, Barbanson, Luc, Bastos, Pedro H.S. (2017) Mineralogy and geochemistry of laterites from the Morro dos Seis Lagos Nb (Ti, REE) deposit (Amazonas, Brazil) Ore Geology Reviews, 88. 461-480 doi:10.1016/j.oregeorev.2017.05.008 | Journal (article/letter/editorial) | | of Laterites from the Morro dos Seis Lagos Nb (Ti, REE) Deposit (Amazonas, Brazil). Arthur L. Giovannini...of Laterites from the Morro dos Seis Lagos Nb (Ti, REE) Deposit (Amazonas, Brazil)., Ore Geology Reviews...of Laterites from the Morro dos Seis Lagos Nb (Ti, REE) Deposit (Amazonas, Brazil). Arthur L. GIOVANNINI1...Cidade Universitária, Ilha do Fundão, Avenida Athos da Silveira Ramos s/n, 21949-900, Rio de Janeiro, RJ...Pesquisa de Recursos Minerais CPRM. SUREG/PA. Rua Banco da Província, 105, Porto Alegre, RS, Brasil. lucytakehara@gmail |  | | Report (issue) | | chart showing niobium resources and reserves in Brazil, Canada, and the United States...................giga- (G-) mega- (M-) kilo- (k-) hecto- (h-) deka- (da-) deci- (d-) centi- (c-) milli- (m-) micro- (µ-)...lithium-cesium-tantalum (LCT)type pegmatites). Brazil and Canada are the leading nations that produce...produce niobium mineral concentrates, but Brazil is by far the leading producer, accounting for about 90 percent...from weathered material derived from carbonatites. Brazil and Canada also have the largest identified niobium |  | | Journal (article/letter/editorial) | | The evolution of the Morro dos Seis Lagos Nb (Ti, REE) deposit (Amazonas, Brazil) deserves particular...in the HFSE concentration process in the Morro dos Seis Lagos. However, laterites in this complex formed...were originally rich in Ti and Nb [25]. In the Seis Lagos, like in many other complexes, Nb-bearing oxides...highest concentrations iron, localized in the ankerite component of dolomite The contents vary since...highest concentrations of iron, localized in the ankerite component of dolomite and in Fe oxides-hydroxides |  | | Journal (article/letter/editorial) | | Weathered crusts overlying carbonatite complexes in Brazil and one hard rock carbonatite deposit in Canada...currently Mibra Mine, Volta Grande (Brazil), the Pitinga Mine (Brazil) and Marropinno (Mozambique). The...Papp (2009a, 2011a, 2013a) 1200 1000 Australia Brazil Canada 800 Rwanda Mozambique 600 Other World...Russia and India. Production comes primarily from Brazil. Production from Canada and other 500 400 300...and Papp (2009a, 2011b, 2013b) 70000 60000 50000 Brazil 40000 Canada 30000 Other World Total 20000 |  | Chakhmouradian, Anton R., Reguir, Ekaterina P., Kressall, Ryan D., Crozier, Jeremy, Pisiak, Laura K., Sidhu, Ravinder, Yang, Panseok (2015) Carbonatite-hosted niobium deposit at Aley, northern British Columbia (Canada): Mineralogy, geochemistry and petrogenesis. Ore Geology Reviews, 64. 642-666 doi:10.1016/j.oregeorev.2014.04.020 | Journal (article/letter/editorial) | | the supply market is essentially controlled by Brazil (N90% since 2000: IBRAM, 2012; Moreno, 2011), it...their own sources of this element independent of Brazil (e.g., Dzhumaylo and Skorobogat'ko, 2013; Pistilli...Ta)2O6] from granites and pegmatites of Africa and Brazil (Bastos Neto et al., 2009; Melcher et al., in this... Minas Gerais, Brazil Boa Vista and other projects, Catalão I and II, Goiás, Brazil Neoprot.? Upper...separating the Paraná accounts for 65–70% of global and São Francisco basins (plume-related?) Nb production 83–85 |  | Kozlov, Evgeniy, Fomina, Ekaterina, Sidorov, Mikhail, Shilovskikh, Vladimir, Bocharov, Vladimir, Chernyavsky, Alexey, Huber, Miłosz (2020) The Petyayan-Vara Carbonatite-Hosted Rare Earth Deposit (Vuoriyarvi, NW Russia): Mineralogy and Geochemistry. Minerals, 10 (1) 73 doi:10.3390/min10010073 | Journal (article/letter/editorial) | | (RE carbonatites) Angola [5,6], Australia [7–9], Brazil Mongolia [52,53], [54–56], New Zealand [57], Norwayin[58]...(4) (5) Calcite, CaCO3 Dolomite, CaMg(CO3 )2 Ankerite, Fe2+ Mg(CO3 )2 Kutnohorite, Mn2+ Mg(CO3 )2 Norsethite...(Figure 3d). This dolomite has low contents of the ankerite (Ank; 6 ± 2 mol. %) and kutnohorite (Kut; 3 ±...REVIEW 6 of 36 dolomite has low contents of the ankerite (Ank; 6 ± 2 mol. %) and kutnohorite (Kut; 3 ±...contents of Fe and Mn, including the occurrences of ankerite (Ank91Dol8Kut1) and kutnohorite elevated of Fe |  | | Report (volume) | | including Venezuela, Guyana, Suriname, and Northern Brazil.............. 1 3 9 17 29 55 55 58 58 61 63 69...anomaly south of Puerto Ayacucho, Territorio Federal Amazonas.................................................anomaly south of Puerto Ayacucho, Territorio Federal Amazonas................................ 7. Highly magnetic...diabase) south of Cerro Autana, Territorio Federal Amazonas.................................................and south of Puerto Ayacucho, Territorio Federal Amazonas.............................................. |  | | Report (issue) | | PLURINATIONAL STATE OF BOSNIA AND HERZEGOVINA BOTSWANA BRAZIL BRUNEI DARUSSALAM BULGARIA BURKINA FASO BURUNDI...particular the contributions of the late R. Villas-Boas (Brazil). The IAEA officers responsible for this publication.............................................. 39 BRAZIL .................................................Gondwana supercontinent and which are now found in the Brazil Shield, southern and eastern Africa, Madagascar...primary carbonate minerals (dolomite, calcite and/or ankerite). Genetically linked to alkaline syenitic plutons |  | | Book | | MINERALS & PRECIOUS STONES OF BRAZIL Sponsored by: VALE MINISTER.IO DA CULTURA © 2009 - CARLOS CORNEJO...BARTORELLI EDITORIAL AND GRAPHIC COORDINATION Silvia Rita dos Santos TRANSLATION BTS - Business Translation Services...photographs: "Parafba" tourmaline (25 x 6 mm), Sao Jose da Batalha, Parafba. Courtesy of Bruno and Rolando Gioia...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 |  | | Report (issue) | | rare-earth elements, and antimony in China; niobium in Brazil; and platinum-group elements in South Africa and...chart showing niobium resources and reserves in Brazil, Canada, and the United States...................giga- (G-) mega- (M-) kilo- (k-) hecto- (h-) deka- (da-) deci- (d-) centi- (c-) milli- (m-) micro- (µ-)...industrialization in large developing countries, such as Brazil, China, and India. In addition, the development...cobalt (Democratic Republic of the Congo), niobium (Brazil), and platinum (South Africa), are also considered |
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