Search Results - "Bastos Neto, Artur C"

The Radioactive Rare Metal Mineralization in the World-Class Sn-Nb-Ta-U-Th-REE-Deposit Madeira (Pitinga, Amazonas State, Brazil): With Special Reference to the Complex Alteration of Pyrochlore-Group Minerals by Ingrid W. Hadlich, Artur C. Bastos Neto, Vitor P. Pereira, Harald G. Dill, Nilson F. Botelho

“…This study focuses on the relationship between U and pyrochlore in the world-class Sn-Nb-Ta (U, Th, REE, Li) Madeira deposit within the Pitinga mining district…”
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The world-class Sn, Nb, Ta, F (Y, REE, Li) deposit and the massive cryolite associated with the albite-enriched facies of the Madeira A-type granite, Pitinga mining district, Amazonas State, Brazil by Bastos Neto, Artur C, Pereira, Vitor P, Ronchi, Luiz H, de Lima, Evandro F, Frantz, José C

“…The Madeira deposit, in the Pitinga mining district, Amazonas State, Brazil, is associated with the A-type Madeira granite (∼1820 Ma), which is hosted by…”
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Paleoproterozoic (~1.88Ga) felsic volcanism of the Iricoumé Group in the Pitinga Mining District area, Amazonian Craton, Brazil: insights in ancient volcanic processes from field and petrologic data by Pierosan, Ronaldo, Lima, Evandro F., Nardi, Lauro V.S., Campos, Cristina P. de, Bastos Neto, Artur C., Ferron, José M.T.M., Prado, Maurício

“…The Iricoumé Group correspond to the most expressive Paleoproterozoic volcanism in the Guyana Shield, Amazonian craton. The volcanics are coeval with Mapuera…”
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Rare earth element and yttrium geochemistry applied to the genetic study of cryolite ore at the Pitinga Mine (Amazon, Brazil) by Minuzzi, Orlando R.R., Bastos Neto, Artur C., Formoso, Milton L.L., Andrade, Sandra, Janasi, Valcir A., Flores, Juan A.

“…This work aims at the geochemical study of Pitinga cryolite mineralization through REE and Y analyses in disseminated and massive cryolite ore deposits, as…”
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Ralstonite renamed hydrokenoralstonite, coulsellite renamed fluornatrocoulsellite, and their incorporation into the pyrochlore supergroup by Atencio, Daniel, Andrade, Marcelo B, Bastos Neto, Artur C, Pereira, Vitor P

“…Ralstonite is renamed hydrokenoralstonite, ideally ∎2Al2F6(H2O). "Atroarite" and the "AHF" phase (hydrated aluminum hydroxy-fluoride, a "ralstonite-like…”
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REE, Y, Nb, U, and Th contents and tetrad effect in zircon from a magmatic-hydrothermal F-rich system of Sn-rare metal–cryolite mineralized granites from the Pitinga Mine, Amazonia, Brazil by Nardi, Lauro V.S., Formoso, Milton L.L., Jarvis, Kym, Oliveira, Leondres, Bastos Neto, Artur C., Fontana, Eduardo

“…The geochemistry of zircon from the granites that host the Sn-Rare-Metal–cryolite deposit of Pitinga Mine in northern Brazil, Amazonia, is discussed based on…”
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U–Pb dating of the Madeira Suite and structural control of the albite-enriched granite at Pitinga (Amazonia, Brazil): Evolution of the A-type magmatism and implications for the genesis of the Madeira Sn–Ta–Nb (REE, cryolite) world-class deposit by Bastos Neto, Artur C., Ferron, José T.M.M., Chauvet, Alain, Chemale, Farid, de Lima, Evandro F., Barbanson, Luc, Costa, Clovis F.M.

“…•Three successive episodes of A-type magmatism and basin formation occurred.•The albite-enriched granite emplacement occurred in a different tectonic…”
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Petrology, geochemistry, and geochronology of Paleoproterozoic volcanic and granitic rocks (1.89–1.88 Ga) of the Pitinga Province, Amazonian Craton, Brazil by Ferron, J. Maximino T.M., Bastos Neto, Artur C., Lima, Evandro F., Nardi, Lauro V.S., Costi, Hilton T., Pierosan, Ronaldo, Prado, Maurício

“…This paper presents geochemical, petrographic, and geochronological data on the Uatumã magmatism in the Pitinga Province, where it is represented by volcanic…”
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Fluorine-rich xenotime from the world-class Madeira Nb-Ta-Sn deposit associated with the albite-enriched granite at Pitinga, Amazonia, Brazil by Bastos Neto, Artur C, Pereira, Vitor P, Pires, Amanda C, Barbanson, Luc, Chauvet, Alain

“…The Madeira deposit (Sn, Nb, Ta) at Pitinga, Amazonia, in Brazil, is associated with the albite-enriched facies of the A-type Madeira granite (approximately…”
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Mineralogy and geochemistry of the Morro dos Seis Lagos siderite carbonatite, Amazonas, Brazil by Giovannini, Arthur L., Mitchell, Roger H., Bastos Neto, Artur C., Moura, Candido A.V., Pereira, Vitor P., Porto, Claudio G.

“…The Morro dos Seis Lagos niobium rare earth element, Ti-bearing lateritic deposit (Amazonas, Brazil) is derived from a primary siderite carbonatite. The…”
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SHRIMP U-Pb zircon dating of Pedras Grandes Suite, southern Santa Catarina State, Brazil by Jelinek, Andréa R., Bastos-Neto, Artur C., Leite, Jayme A.D., Hartmann, Léo A., McNaughton, Neal J.

“…Two major magmatic pulses of the granitic Florianópolis Batholith in Santa Catarina State, southern Brazil, occurred between 613±5Ma and 595±5 Ma, during the…”
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Metallogenetic systems associated with granitoid magmatism in the Amazonian Craton: An overview of the present level of understanding and exploration significance by Bettencourt, Jorge Silva, Juliani, Caetano, Xavier, Roberto P., Monteiro, Lena V.S., Bastos Neto, Artur C., Klein, Evandro L., Assis, Rafael R., Leite, Washington Barbosa, Moreto, Carolina P.N., Fernandes, Carlos Marcello Dias, Pereira, Vitor Paulo

“…The Amazonian Craton hosts world-class metallogenic provinces with a wide range of styles of primary precious, rare, base metal, and placer deposits. This…”
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U-Pb zircon geochronologycal investigation on the Morro dos Seis Lagos Carbonatite Complex and associated Nb deposit (Amazonas, Brazil) by Rossoni, Marco B., Bastos Neto, Artur C., Souza, Valmir S., Marques, Juliana C., Dantas, Elton, Botelho, Nilson F., Giovannini, Arthur L., Pereira, Vitor P.

“…We present results of U-Pb dating (by MC-ICP-MS) of zircons from samples that cover all of the known lithotypes in the Seis Lagos Carbonatite Complex and…”
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Fluorine-rich xenotime from the world-class madeira Nb-Ta-Sn deposit associated with the albite-enriched granite aat Pitinga, Amazonia, Brazil by Bastos Neto, Artur C., Pires, Amanda C., Barbanson, Luc, Chauvet, Alain

“…The Madeira deposit (Sn, Nb, Ta) at Pitinga, Amazonia, in Brazil, is associated with the albite-enriched facies of the A-type Madeira granite (~1,820 Ma)…”
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SHRIMP U-Pb zircon dating of Pedras Grandes Suite, southern Santa Catarina State, Brazil by Andréa R. Jelinek, Artur C. Bastos-Neto, Jayme A.D. Leite, Léo A. Hartmann, Neal J. McNaughton

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