 | 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 UniversitĂĄria, Ilha do FundĂŁo, Avenida Athos da Silveira Ramos s/n, 21949-900, Rio de Janeiro, RJ...Pesquisa de Recursos Minerais CPRM. SUREG/PA. Rua Banco da ProvĂncia, 105, Porto Alegre, RS, Brasil. lucytakehara@gmail |  | | 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...level, and K2 O (2.0â5.9 [Me 3.5](mainly wt %),pyrite) which notwidespread typical ofincarbonatites....greatest Interestingly, sulfides (mainlytitaniferous pyrite) are only widespread titaniferous carbonatites |  | | 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- (”-)...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) | | interaction in K-feldspar alteration zoneâa model for pyrite in gold deposits from the 545 Downloaded from...Feierstein, and Ryan J. McAleer 1158 GEOLOGY Pyrite Re-Os and muscovite 40Ar/39Ar dating of the Beizhan...investigation on the Morro dos Seis Lagos Carbonatite Complex and associated Nb deposit (Amazonas, Brazil)âMarco B...rock-hosted Pedra Verde copper mine, Borborema Province, Brazil: Stable isotope constraints, structural controls...evolutionâJosĂ© Henrique da Silva Nogueira de Matos, Ticiano JosĂ© Saraiva dos Santos, and Lena VirgĂnia |  | | Journal (article/letter/editorial) | | our database, with Australia, Russia, Canada, and Brazil having 64.5, 62.3, 48.3, and 47.1 Mt of contained...Other India Australia Notes: 1) âOtherâ includes Brazil, Malaysia, USSR/Russia and various minor producing...undersaturated Carbonatite Bayan Obo, China; AraxĂĄ, Brazil; Karonge, Burundi; â Mountain Pass, USA; Nolans...Country to 2013 (in Mt REO) Country USA Australia Brazil China India Malaysia Russia and Commonwealth of...by-product of phosphate mineral production (e.g., AraxĂĄ, Brazil), U mining (Mary Kathleen, Australia), and deep-sea |  | 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, CatalĂŁo I and II, GoiĂĄs, Brazil Neoprot.? Upper...separating the ParanĂĄ accounts for 65â70% of global and SĂŁo Francisco basins (plume-related?) Nb production 83â85 |  | Kozlov, Evgeniy, Fomina, Ekaterina, Sidorov, Mikhail, Shilovskikh, Vladimir, Bocharov, Vladimir, Chernyavsky, Alexey, Huber, MiĆosz (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 [7â9], Brazil Mongolia [52,53], [54â56], New Zealand [57], Norwayin[58]...Hollandite, Ba(Mn4+ 6 Mn3+ 2 )O16 Fe oxides/hydroxides Pyrite ****, FeS2 Cal Dol Ank Kut Nor Str Anc Brb Cbc...replaced, see Section 4.1.1; *** Mostly brookite; **** Pyrite is the main sulfide mineral; âvacancy. 3.2. Scanning...PLC, Reading, UK). Quartz (Si), corundum (Al), pyrite (Fe, S), apatite (Ca, P), periclase (Mg), rhodochrosite...accessory phases. Feldspars and sulfides (mainly pyrite) are widespread amounts, orhigh-Ti absent.carbonatites |  | | 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.............................................. |  | DĂaz-Acha, Yael, Campeny, Marc, Tauler, Esperança, Bosch, Josep, Melgarejo, Joan Carles, CamprubĂ, Antoni, Villanova-de-Benavent, Cristina, Jorge-Villar, Susana E., DĂaz-Ontiveros, Iria, FernĂĄndez-Lluch, David, Proenza, JoaquĂn A., Andreazini, Aleu, Pastor, MĂriam (2019) Critical Elements in Supergene Phosphates: The Example of the Weathering Profile at the GavĂ Neolithic Mines, Catalonia, Spain. Minerals, 10 (1) 3 doi:10.3390/min10010003 | Journal (article/letter/editorial) | | occurs in these shales replacing primary framboidal pyrite (Figure 6aâc). Jarosite crystals in these framboids...Jarosite in these shales replacing primary framboidal pyrite Chert bedsJarosite are mainly comprised cryptocrystalline...(lessscattered than 5 ”m) and have a with minor pyrite framboids, andQuartz crystals of monazite-(Ce)...(SEM)-backscattering electrons (BSE) (BSE) images. (a) Pyrite mineralisation;Scanning ScanningElectron Electron...finally variscite Note the Note rhombohedral shape of Pyrite framboid replaced by (Jrs), jarosite andbyfinally |  | | 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 |  | | Book | | Other magmatic events are reported from the Central Brazil and Guiana shields, for example the Mata-MatĂĄ (1...(1.22 Ga) maïŹc sills and the viii Preface Cachoeira Seca troctolite dykes and laccoliths (1.19 Ga)...Venusian coronae. Dykes of ParanĂĄ-Etendeka LIP, Brazil and Namibia (135â120 Ma): Radiating dykes of the...4, brings the proposed circumferential dykes of Brazil and Namibia into alignment. In this reconstruction...reconstructed ca. 135â120 Ma ParanĂĄ-Etendeka LIP of Brazil and Namibia. The radiating swarm is dense in some |  | | Report (issue) | | PLURINATIONAL STATE OF BOSNIA AND HERZEGOVINA BOTSWANA BRAZIL BRUNEI DARUSSALAM BULGARIA BURKINA FASO BURUNDI....................................... 38 6.4.3. Brazil..................................................Cu, Fe, Zr, Ti, U and others. Examples: Araxa in Brazil, Bayan Obo in China, Fen in Norway, Sokli in Finland...Lovozero in Russian Federation, Poços de Caldas in Brazil. 4.1.3. Vein type Vein-type mineralisation is...ï ï ï ï 4.1.5. Coastal placersïKerala, India, Brazil; Dune placersïQueensland, Australia; Offshore placersïNeendakarai |  | La Cruz, Nikita L., Ovalle, J. TomĂĄs, Simon, Adam C., Konecke, Brian A., Barra, Fernando, Reich, Martin, Leisen, Mathieu, Childress, Tristan M. (2020) The Geochemistry of Magnetite and Apatite from the El Laco Iron Oxide-Apatite Deposit, Chile: Implications for Ore Genesis. Economic Geology, 115 (7). 1461-1491 doi:10.5382/econgeo.4753 | Journal (article/letter/editorial) | | kaolinite, gypsum, cristobalite, smectite, bassanite, pyrite, pyrophyllite), and the formation of fumarolic...te veins and late veinlets of gypsum-magnetite-pyrite that crosscut the main breccia bodies at depth...of laterites from the Morro dos Seis Lagos Nb (Ti, REE) deposit (Amazonas, Brazil): Ore Geology Reviews |  | | 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- (”-)...ppt part per trillion xxv QSP quartz-sericite-pyrite RDA recommended daily allowance REE rare-earth...industrialization in large developing countries, such as Brazil, China, and India. In addition, the development |
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