 | Cordeiro, Pedro Filipe de Oliveira, Brod, José Affonso, Palmieri, Matheus, de Oliveira, Claudinei Gouveia, Barbosa, Elisa Soares Rocha, Santos, Roberto Ventura, Gaspar, José Carlos, Assis, Luis Carlos (2011) The Catalão I niobium deposit, central Brazil: Resources, geology and pyrochlore chemistry. Ore Geology Reviews, 41 (1) 112-121 doi:10.1016/j.oregeorev.2011.06.013 | Journal (article/letter/editorial) | | a t e / o r e g e o r ev The Catalão I niobium deposit, central Brazil: Resources, geology and pyrochlore...Geociências, Brasília-DF, 70910-900 Brazil Universidade Federal de Goiás, Campus Samambaia, Instituto de...Universidade Federal de Goiás, Goiânia-GO, 74001-970 Brazil Anglo American Brazil LTDA, Avenida Interlândia...502, Setor Santa Genoveva, Goiânia-GO, 74672-360 Brazil a r t i c l e i n f o Article history: Received...Keywords: Catalão I Carbonatite Phoscorite Nelsonite Pyrochlore a b s t r a c t The Catalão I alkali |  | Oliveira, Ítalo L., Brod, José A., Cordeiro, Pedro F.O., Dantas, Elton L., Mancini, Luis H. (2017) Insights into the late-stage differentiation processes of the Catalão I carbonatite complex in Brazil: New Sr–Nd and C–O isotopic data in minerals from niobium ores. Lithos, 274. 214-224 doi:10.1016/j.lithos.2016.12.034 | Journal (article/letter/editorial) | | Processes of the Catalão I Carbonatite Complex in Brazil: New Sr-Nd and C-O Isotopic Data in Minerals from...Processes of the Catalão I Carbonatite Complex in Brazil: New Sr-Nd and C-O Isotopic Data in Minerals from...Differentiation Processes of the Catalão I Carbonatite T Complex in Brazil: New Sr-Nd and C-O Isotopic Data...Universidade Federal de Goiás, Campus Aparecida de MA b NU Brasília, DF 70.910-900, Brazil Goiânia, Aparecida...Aparecida de Goiânia, GO 74.968-755, Brazil TE D *Corresponding author: Ítalo L. de Oliveira Telephone: |  | Pereira, Lucas, Birtel, Sandra, Möckel, Robert, Michaux, Bruno, Silva, Andre C., Gutzmer, Jens (2019) Constraining the Economic Potential of By-Product Recovery by Using a Geometallurgical Approach: The Example of Rare Earth Element Recovery at Catalão I, Brazil. Economic Geology, 114 (8) 1555-1568 doi:10.5382/econgeo.4637 | Journal (article/letter/editorial) | | Example of Rare Earth Element Recovery at Catalão I, Brazil Lucas Pereira,1,† Sandra Birtel,1 Robert Möckel...University of Goiás, Mine Engineering Department, Capes Scholarship POS-DOC-88881.119296/2016–01, Catalão, Brazil...production at the Chapadão mine in the Catalão I carbonatite complex is used. Catalão I is part of the Alto...Paranaíba igneous province in the Goias Province of Brazil. Currently, niobium is produced in the complex...complex as a by-product of the Chapadão phosphates mine. This production is performed in the Tailings plant |  | e Silva, Jonas Mota, Ferreira Filho, Cesar Fonseca, Bühn, Bernhard, Dantas, Elton Luiz (2011) Geology, petrology and geochemistry of the “Americano do Brasil” layered intrusion, central Brazil, and its Ni–Cu sulfide deposits. Mineralium Deposita, 46 (1) 57-90 doi:10.1007/s00126-010-0312-9 | Journal (article/letter/editorial) | | “Americano do Brasil” layered intrusion, central Brazil, and its Ni–Cu sulfide deposits Jonas Mota e Silva...during the Brasiliano/Pan-African Orogenic Cycle in Brazil. The medium-sized ABC consists of interlayered...Universidade de Brasília, Brasília, DF 70910-900, Brazil e-mail: cesarf@unb.br J. M. e Silva e-mail: jonas...Synorogenic layered intrusion . Mafic–ultramafic . Brazil . Americano do Brasil Introduction Magmatic Ni–Cu...“Americano do Brasil” Complex (ABC) in central Brazil is hosted by a Neoproterozoic synorogenic mafic– |  | Thompson, R. N., Gibson, S. A., Mitchell, J. G., Dickin, A. P., Leonardos, O. H., Brod, J. A., Greenwood, J. C. (1998) Migrating Cretaceous-Eocene Magmatismin the Serra do Mar Alkaline Province,SE Brazil: Melts from the Deflected Trindade Mantle Plume?. Journal of Petrology, 39 (8) 1493-1526 doi:10.1093/petroj/39.8.1493 | Journal (article/letter/editorial) | | Magmatism in the Serra do Mar Alkaline Province, SE Brazil: Melts from the Deflected Trindade Mantle Plume...UNIVERSIDADE DE BRASÍLIA, 70910 BRASÍLIA DF, BRAZIL RECEIVED JULY 30, 1997; REVISED TYPESCRIPT ACCEPTED...volcanic remnants, and dyke swarms along coastal SE Brazil. The igneous rocks are emplaced into metamorphics...mantle plume impacted at ~85 Ma beneath interior SE Brazil where the lithosphere was too thick (>150 km),...strongly alkaline magmatism at Lages, southern Brazil, a site of localized rifting. After ~80 Ma, as |  | 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) | | of Nb in these rocks is contained in rutile, phlogopite and, to a much lesser extent, amphibole. When...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...Niocan Inc.; mined in 1961– 1976 by St. Lawrence mine, Oka complex, Deux-Montagnes, Qué- Columbium and |  | | Report (volume) | | Deposits in the Serra das Eguas, Brumado Bahia, Brazil By ALFRED J. BODENLOS GEOLOGIC INVESTIGATIONS...da Produ~ao Mineral, Ministerio da Agricultura, Brazil, under the auspices of the Interdepartmental Committee...___________________________________ Bate-Pe and Boa Vista_________________________________________ C...of the central Serra das Eguas, Brumado, Bahia, Brazil. · 13. Geologic map of the Pedra Preta magnesite...connecting with Salvador__ 9. Index map of eastern Brazil, showing location of Brumado, Bahia, and lguatU |  | | Journal (article/letter/editorial) | | the writer calls the high plateau of south-east Brazil. This would indicate that the diamonds now found...by denudation. If the assumed pipes of Sopa, Boa Vista, and elsewhere are of late Paraguassu age there...wealth over such great areas of sedimentary rock in Brazil, would certainly warrant a closer investigation...amphibole of the edenite-pargasite group. Rarely phlogopite and diopside may be seen. Dealing with these...good exposures are met with in the gorge of the Mine creek. Serpentinous marbles outcrop in the north-eastern |  | Gerlach, David C, Cliff, Robert A, Davies, Gareth R, Norry, Michael, Hodgson, Neal (1988) Magma sources of the Cape Verdes archipelago: Isotopic and trace element constraints. Geochimica et Cosmochimica Acta, 52 (12) 2979-2992 doi:10.1016/0016-7037(88)90162-7 | Journal (article/letter/editorial) | | lithosphere over the hotspot. The eastern (Sal, Boa Vista) aud southern (Maio, Sgo Tiago, Fogo, Brava) islands...post-Miocene volcanism is absent on Maio, and Sal and Boa Vista am much older and arc planed by erosion. We have...especially on tbe more eroded islands of Sal and Boa Vii. Historical volcanic activity is reported on...consistent with residual phlogopite or phiogopite melting in upper mantle sources. Phlogopite is characterized...may also indicate a role for phlogopite, assuming &.aL > Dt,,,for phlogopite. A group of samples Born the |  | | Journal (issue) | | typically abraded specimens you’ve found in the old mine dumps. And you’ve probably looked long and hard...Everyone has heard repeated warnings about entering old mine workings. But, face it, those deep, open shafts...commonality: They can be very dangerous. Each year mine rescue specialists and conventional search and rescue...Statistically, shafts are the most dangerous part of any mine; 90 percent of all accidents and entrapments in...disturbed. In the narrow confines of an underground mine, shattering timbers can be as deadly as the rock |  | | Journal (article/letter/editorial) | | de Minas Gerais, 31270-901 Belo Horizonte, MG, Brazil ˆ b Enrico Fermi Institute and Departments of Chemistry...UniÕersidade de Brasılia, ˆ ´ 70910-900 Brasılia, ´ DF, Brazil Received 7 June 1996; accepted 2 October 1997 ...alkaline volcanic rocks of kamafugitic affinities from Brazil. These rocks are part of the Alto do Paranaıba...leucite and kalsilite, and may contain olivine, phlogopite, melilite and apatite ŽLloyd et al., 1991; Sgarbi...and Santo Antonio ˆ da Barra volcanic rocks of Brazil, in order to determine the degree of crustal contamination |  | | Catalog/List | | .... . Utah Toelle County, Gold Hill, Gold Hill mine --=.rransparent micro crystals on limonite gossen...silicate' Arizona Pima County, Ajo, New Cornelia mine Sky blue micro xls and coatings on monzonite . ...silicate CLEAVELANDITE Virginia Amelia, Rutherford mine #2 Lustrous white twin xl groups, minor muscovite...Lead telluride • Colorado Saguache County, Klondike mine Brilliant metallic tin white cleavable mass in quartz...magnesium silicate Canada Heath Lake, Smallwood mine ~e, light brown prismatic crystalline aggregate |  | Doucelance, Régis, Escrig, Stéphane, Moreira, Manuel, Gariépy, Clément, Kurz, Mark D. (2003) Pb-Sr-He isotope and trace element geochemistry of the Cape Verde Archipelago. Geochimica et Cosmochimica Acta, 67 (19) 3717-3733 doi:10.1016/s0016-7037(03)00161-3 | Journal (article/letter/editorial) | | São Nicolau, extending to the east with Sal and Boa Vista (Fig. 1). In the two groups, the alignment of...calcareous deposits are also present on Sal, Boa Vista and Maio (Matos Alves et al., 1979; Gerlach et...melting of a harzburgite containing amphibole, phlogopite and ilmenite (Fig. 3; Table 2). Mineral Pb-Sr-He...Goldstein (1997) for a harzburgite with amphibole, phlogopite and ilmenite. The overall agreement of factors...two distinct sources containing amphibole and phlogopite. This is comparable with the results of Gerlach |  | | Book | | BARTORELLI ::• . . .. MINERALS & PRECIOUS STONES OF BRAZIL Sponsored by: VALE MINISTER.IO DA CULTURA ©...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...Precious stones - Brazil I. Bartorelli, Andrea. II. Title. 09-10025 Cover photograph: Crystal of brazilianite...Landmann. CDD-549 Indexes for systematic catalog: 1. Brazil: Minerals and precious stones: Mineralogy and gemology |  | de Souza, Zorano Sérgio, Wang, Chao, Jin, Zhen-Min, Li, Jian-Wei, Yang, Junlong, Botelho, Nilson Francisquini, Viana, Rúbia Ribeiro, dos Santos, Larissa, Liu, Peng-Lei, Li, Wei (2019) Pyrometamorphic aureoles of Cretaceous sandstones and shales by Cenozoic basic intrusions, NE Brazil: Petrograhic, textural, chemical and experimental approaches. Lithos, 326. 90-109 doi:10.1016/j.lithos.2018.11.033 | Journal (article/letter/editorial) | | sandstones and shales by Cenozoic basic intrusions, NE Brazil: Petrograhic, textural, chemical and experimental...sandstones and shales by Cenozoic basic intrusions, NE Brazil: Petrograhic, textural, chemical and experimental...sandstones and shales by Cenozoic basic intrusions, NE Brazil: Petrograhic, textural, chemical and experimental...3000, Campus Universitário, 59078-970 Natal/RN, Brazil 2State Key Laboratory of Geological Processes and...Universitário Darcy Ribeiro, 70910-900 Brasília/DF, Brazil 5Instituto de Ciência e Tecnologia, Universidade |  | | Journal (article/letter/editorial) | | presently no published isotopic analyses of lava from Boa Vista. c Map of Santiago showing the location of samples...Sal 17oN 17oN Sao Vicente Sao Nicolau 16oN Boa Vista Fogo 15oN Brava 24oW N TARRAFAL 15oN Santiago...and Sr/Nd, Ba/La ratios (Fig. 7). Amphibole and phlogopite are stable at pressures and temperatures corresponding...and Goldstein 1997). If residual amphibole or phlogopite were involved in the melting processes then the...are characteristic of residual amphibole and phlogopite due to their compatible behaviour (Class et al |  | | Journal (article/letter/editorial) | | = Sao Vicente; 3 = Sao Nicolau; 4 = Sal; 5 = Boa Vista; 6 = Maio; 7 = Sao Tiago; 8 = Fogo; 9 = Brava...shallow seas of the submarine ridge joining Maio to Boa Vista (5 in Fig. 1). In addition to the clasts at the...nepheline. Minor apatite, perovskite and Ti-rich phlogopite. 20 TS 699833 Monte Coruja-Monte Penoso (80ZMlI3) |  | | Journal (article/letter/editorial) | | Paleoproterozoic crust of the São Francisco Craton, Bahia, Brazil: geodynamic features J.S.F. Barbosa a,∗ , P. Sabaté...Bahia, Brazil b IRD—Representation in Brazil CP7091, Lago Sul, 71619-970 Brasilia, DF, Brazil Received...Geocronological; Geotectonic models; Mineral deposits; Bahia; Brazil 1. Introduction The essential features of the...1991; Marinho, 1991; Nutman and Cordani, 1993)) Boa Vista/Mata Verde TTG (Martin et al., 1991; Marinho,...Petrogenética. In: Congr. Bras. Geol. 37, São Paulo, Brazil Ext. Abstr. SBG.1 pp. 449–450. Alibert, C., Barbosa |  | | Journal (issue) | | . • • • • • • • • • • I 5.00 Rutilated Quarts, Brazil. 3 x 2 ½ x I . Polished curved face. Plus tax •.... . . . . . . . . . . . 2.00 Quarts w Phantom, Brazil. Fine green phantom in xi. 3 x 2 ¼ . . . . . ....Evelyn Waite ..................116 QUAR1Z CRYSTAL IN BRAZIL .....................................................................118 SEMIPRECIOUS STONES IN BRAZIL .................................................MAGNETIC PROSPECTING ...............•124 MICA IN BRAZIL .............................................. |  | | Book | | 1982 Jules Roger Sauer ” Foreword For years Brazil has been the major producer of colored stones in...metamorphic rocks, the variety of gem deposits in Brazil is almost infinite. In addition to the mineral...assemblage one might expect from pegmatite dikes, Brazil also produces a very significant output of diamonds...written in English, and beautifully illustrated. “Brazil, Paradise of Gemstones’, by Jules Roger Sauer,...the Cruzeiro tourmaline and mica mine and the Jacobina amethyst mine. He owns several other mines as well |  | | Report (issue) | | Deposits of the Alegria District, Minas Gerais, Brazil GEOLOGICAL SURVEY PROFESSIONAL PAPER 341-J Prepared...the Departamento National da Producao Mineral of Brazil under the auspices of the Agency for International...Gerais, Brazil By CHARLES H. MAXWELL GEOLOGY AND MINERAL RESOURCES OF PARTS OF MINAS GERAIS, BRAZIL GEOLOGICAL...the Departamento National da Producao Mineral of Brazil under the auspices of the Agency for International...---------------37. Geologic map of the Pitangui mine area__-____-________-___----_-__--_----_---_-___-_---------38 |  | | Journal (issue) | | at the International Gemmological Conference in Brazil in 1987 entitled 'Imitation pearls and their coatings'...quantities of rough and faceted alexandrites from Brazil (Bank et al, 1987a; Bank et al, 1987b; Gübelin...purchased it personally in the rough at the mine in Brazil and had also cut it himself (which, however...Alexandrite Alexandrite from from aa Gübelin, in Brazil. Brazil. Schweizerische Schweizerische Newly Discovered...colour zoning as well as mineral inclusions (phlogopite), feathers consisting of two- and most probably |  | | Catalog/List | | ...... Utah Toelle County, Gold Hill, Gold Hill mine ~ransparent micro crystals on gossen with minor...silicate Arizona Pima County, Ajo, New Cornelia mine Sky blue micro xls and coatings on monzonite .....Derby mine White xlline lamellar mass with minor lepidolite . Virginia Amelia, Rutherford mine !r2 Lustrous...Lead telluride Colorado Saguache County, Klondike mine Cleavage plates in quartz with pyrite ............ AMBLYGONITE Sodium lithium aluminum phosphate Brazil Minas Gerais, Governador Valaderas Single pale |  | de Campos, Roberto Sacks, Philipp, Ruy Paulo, Massonne, Hans-Joachim, Chemale, Farid, Theye, Thomas (2012) Petrology and isotope geology of mafic to ultramafic metavolcanic rocks of the Brusque Metamorphic Complex, southern Brazil. International Geology Review, 54 (6) 686-713 doi:10.1080/00206814.2011.569393 | Journal (article/letter/editorial) | | rocks of the Brusque Metamorphic Complex, southern Brazil Roberto Sacks de Camposa∗ , Ruy Paulo Philippb...Universidade Federal do Espírito Santo (CCA-UFES), Alegre, Brazil; b Centro de Estudos em Petrologia e Geoquímica...Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil; c Institut für Mineralogie und Kristallchemie...Universidade de Brasília (UnB), Distrito Federal, Brazil (Accepted 25 February 2011) The Brusque Metamorphic...located in the state of Santa Catarina in southern Brazil. In the Itapema region, the BMC is composed chiefly |  | | Journal (article/letter/editorial) | | clinopyroxene inclusions in 23 diamonds from Premier mine and 16 diamonds from Finsch were analysed for their... (2000); g) and placer deposits in Namibia and Brazil see Stachel et al. (2004) and Tappert et al. (2006)...clinopyroxenes in 23 eclogitic diamonds from the Premier mine and 15 garnets and 4 clinopyroxene inclusions in...in 16 eclogitic diamonds from the Finsch diamond mine, were analysed for their major and trace element...world-wide sources. For example, at the Jagersfontein mine in South Africa, Tappert et al. (2005a,b) showed |
|
