 | Souza Neto, João Adauto, Legrand, Jean Michel, Volfinger, Marcel, Pascal, Marie-Lola, Sonnet, Philippe (2008) W–Au skarns in the Neo-Proterozoic Seridó Mobile Belt, Borborema Province in northeastern Brazil: an overview with emphasis on the Bonfim deposit. Mineralium Deposita, 43 (2) 185-205 doi:10.1007/s00126-007-0155-1 | Journal (article/letter/editorial) | | Borborema Province in northeastern Brazil: an overview with emphasis on the Bonfim deposit João Adauto Souza Neto...located in the Borborema Province in northeastern Brazil and consists of a gneiss basement (Archean to Paleo-Proterozoic)...locally gold. Recently, the discovery of gold in the Bonfim tungsten skarn has resulted in a better understanding...Recife, Brazil e-mail: adauto@ufpe.br J. M. Legrand Departamento de Geologia, Universidade Federal do Rio...Rio Grande do Norte, Campus Universitário, Lagoa Nova, CEP 59.072-970 Natal, Brazil M. Volfinger : M.-L |  | | Journal (article/letter/editorial) | | ore fluids in the Bonfim and Itajubatiba gold skarn deposits, Northeastern Brazil: a PIXE method study...Legrand Federal University of Rio Grande do Norte State, 59.072-970, Natal, Brazil CRSCM - CNRS, 45.071, Orl6ans...skarn deposits, in Northeastern Brazil: Itajubatiba (Au) and Bonfim (W-Au). The principal objective is...rocks. The Bonfim W-Au deposit is situated 27 km southeast of the town of Lajes in the state of Rio Grande...Grande do Norte. The deposit has a proven total reserve of 70 tons of scheelite. In the early 1990's gold |  | | Journal (article/letter/editorial) | | mineralization at the Bonfim polymetallic skarn deposit, Seridó Mobile Belt, Borborema Province, Brazil Nayara Moreira...mineralization at the Bonfim polymetallic skarn deposit, Seridó Mobile Belt, Borborema Province, Brazil, Ore Geology...mineralization at the Bonfim polymetallic skarn deposit, Seridó Mobile Belt, Borborema Province, Brazil Nayara Moreira... da Arquitetura, s/n, 50740-550, Recife (PE), Brazil Corresponding author: Nayara Moreira de Mesquista...skarns in the Borborema Province, northeastern Brazil. The Bonfim W-Mo-Au-Bi-Te skarn occurs within a Neoproterozoic |  | Vial, D.S., Abreu, G.C., Schubert, G., Ribeiro-Rodrigues, L.C. (2007) Smaller gold deposits in the Archean Rio das Velhas greenstone belt, Quadrilátero Ferrífero, Brazil. Ore Geology Reviews, 32 (3) 651-673 doi:10.1016/j.oregeorev.2005.01.004 | Journal (article/letter/editorial) | | deposits in the Archean Rio das Velhas greenstone belt, Quadrilátero Ferrífero, Brazil D.S. Vial a,⁎, G.C...c a CVRD—Companhia Vale do Rio Doce, BR 381, km 450, Santa Luzia, MG, Brazil Instituto de Geociências...Amparo à Pesquisa do Estado de São Paulo, Rua Major Solbiat, 226, Torrinha, SP, Brazil Fundação Educacional...BR-116, Km 526, Bairro das Graças, Caratinga, MG, Brazil b c Received 26 June 2003; accepted 2 January...occurrences in the Archean greenstone belt comprising the Rio das Velhas Supergroup. There are numerous small gold |  | | Journal (article/letter/editorial) | | Min., Bol. 209, Rio de Janeiro 1964. DE MORAES, L.J.: Dep6sitos diamantlferos no norte do Estado de Minas...Bol. 8, Rio de Janeiro 1934. - - : Geologia Geral. - - Serv. Fore. Prod, Min., Bol. 19, Rio de ]aneiro...142, Rio de Janeiro 1968. PFLU~, R., SCHOBnENaAUS, C., & RENGES, F.: Contribuig~o ~ geotect6nica do Brasil...Bahia. - - Min. e Met,, 15, Rio de Janeiro 1951. SCHOgZENHAUS, C.: Sure,rio da geologia da Quadrieula Ibitiara...Ibitiara, Bahia, Sure,rio da geologia da Quadrieula de Paramirim, Bahia. - - SUDENE, Div. Geol., Bol |  | | Book | | AV. PRESIDENTE WILSON, 231 - RIO DE JANEIRO MINES AND MINERALS IN BRAZIL --= ··--· ··- ·-·=- MINES... MINES AND MINERALS IN BRAZIL J OSIAS LEAO (ECONOMIC DIVISION - MINISTRY OF FOREIGN AFFAIRS) CENTRO DE...DE ESTUDOS ECONOMICOS RIO DE JANEIRO PREFACE This book was planned by Dr. Arno Kondei· - head of the...regarding water power and industry of electr·icity in Brazil were specially prepared at the Division of Waters........ 189 SUMMARY OF THE MINERAL RESERVES OF BRAZIL..... . ... ....... . .. 199 STATISTICAL TABLES |  | | Journal (article/letter/editorial) | | deposit, Quadrilátero Ferrífero, Minas Gerais, Brazil Luiz Cláudio Ribeiro-Rodrigues a,⁎, Claudinei Gouveia...35 300-970, Brazil b Instituto de Geociências, Universidade de Brasília, Campus Asa Norte, Brasília-DF...Brasília-DF, 31270-901, Brazil c Institute of Mineralogy and Economic Geology, Aachen University of Technology...the Quadrilátero Ferrífero, Minas Gerais State, Brazil. The region constitutes an Archean granite–greenstone...composed of a basement complex (ca. 3.2 Ga), the Rio das Velhas Supergroup greenstone sequence, and related |  | Giuliani, Gaston, Groat, Lee A., Marshall, Dan, Fallick, Anthony E., Branquet, Yannick (2019) Emerald Deposits: A Review and Enhanced Classification. Minerals, 9 (2) 105 doi:10.3390/min9020105 | Journal (article/letter/editorial) | | sub-types hosted in: (IA) Mafic-ultramafic rocks (Brazil, Zambia, Russia, and others); (IB) Sedimentary...sub-types hosted in: (IIA) Mafic-ultramafic rocks (Brazil, Austria); (IIB) Sedimentary rocks-black shale...ct. Insufu rough emerald extracted from the Kagem mine in 2015. Lastly, on the 2th of October, the remarkable...(“the lion elephant”) was extracted from the same mine [3]. Other giant crystals have been discovered in...emerald crystals was discovered in the Carnaíba mine, Brazil; the specimen weighed 341 kg with 1.7 million |  | | Journal (article/letter/editorial) | | information for emeralds examined in this study. Region Brazil Madagascar Madagascar South Africa Zambia ...L2017.27.5 Bonfim farm, Caiçara do Rio do Vento, Borborema mineral province, Rio Grande do Norte Pegmatitic...2017-14.1, 2017-14.2, 2017-14.3 Ankadilalana emerald mine, Ambalahosy Nord Commune, Mananjary District, Vatovavy...9.3-1, 2017.9.3-2, 2017.9.3-3, 2017.9.4 Irondro mine, Andonabe Commune, Mananjary District, Vatovavy...5.2, RSA1, RSA2, RSA3, RSA4 Gravelotte Emerald Mine, Gravelotte, Murchison Range, Limpopo Province |  | | Journal (article/letter/editorial) | | the octahedral and tetrahedral substitution, and do not substitute for Be or Al (Auriscchio et al., 1988)...of emerald occur in Colombia, Zambia, Pakistan, Brazil, Russia, Afghanistan, Zimbabwe and Madagascar....while less prevalent mineral associations include scheelite, tourmaline and bismuth (Figure 4). The Leydsdorp...1986). Although the earlier Somerset mine and the later Cobra mine have been the main source of the emeralds...the 1960s, the Gravelotte Project was the largest mine of its type in the world, employing over 400 sorters |  | | Book | | BARTORELLI ::• . . .. MINERALS & PRECIOUS STONES OF BRAZIL Sponsored by: VALE MINISTER.IO DA CULTURA ©...Crystal of multicolored tourmaline (84 x 26 mm), Lavra do Sapo, Ferruginha, Conselheiro Pena, Minas Gerais...(Camara Brasileira do Livro, SP, Brazil) Cornejo, Carlos .Minerals & precious stones of Brazil. Carlos Cornejo...pedras preciosas do Brasil Bibliography 1. Gemology 2. Geology 3. Minerals - Brazil 4. Minerals- Classification... Mineralogy 6. Mineralogy - Brazil - History 7. Precious stones - Brazil I. Bartorelli, Andrea. II. Title |  | | Journal (article/letter/editorial) | | com/loi/tigr20 Geology and Mineral Resources of Brazil: A Review a a Inacio De Medeiros Delgado , Augusto...Pesquisa de Recursos Minerals, Scdvador, Bahia, Brazil b US. Geological Survey, Denver, CO, 80225 Version...Thorman (1994): Geology and Mineral Resources of Brazil: A Review, International Geology Review, 36:6,...rights reserved. Geology and Mineral Resources of Brazil: A Review INACIO DE MEDEIROS DELGADO, AUGUSTO J...Pesquisa de Recursos Minerals, Scdvador, Bahia, Brazil AND CHARLES H. THORMAN US. Geological Survey, Denver |  | | Journal (article/letter/editorial) | | e r a l i z a t i o n in Central E a s t e r n Brazil: a review A. Bernasconi Terraconsult AG, Steinwiesstrasse24...the major Archaean terranes of central eastern Brazil is given in the first section of this paper. Integration...Jequie and Goias mobile belts of central eastern Brazil. This mineralization associated with greenstone...Weber" within the mafic metavolcanic unit of the Rio Itapicuru belt and other small gold occurrences such...of the most important Archaean gold districts of Brazil, the Iron Quadrangle of Minas Gerais (Fig. 1), |  | Vial, Diogenes Scipioni, DeWitt, Ed, Lobato, Lydia Maria, Thorman, Charles H. (2007) The geology of the Morro Velho gold deposit in the Archean Rio das Velhas greenstone belt, Quadrilátero Ferrífero, Brazil. Ore Geology Reviews, 32 (3) 511-542 doi:10.1016/j.oregeorev.2004.12.008 | Journal (article/letter/editorial) | | deposit in the Archean Rio das Velhas greenstone belt, Quadrilátero Ferrífero, Brazil Diogenes Scipioni Vial...a Companhia Vale do Rio Doce-CVRD, BR 381, Km 459, Santa Luzia, MG, 33010-970, Brazil United States Geological...6627, Pampulha, Belo Horizonte, MG, 31270-901, Brazil d CTGS Intl., Inc., 12464 W. 2nd Drive, Lakewood...region, Minas Gerais, Brazil, is hosted by rocks at the base of the Archean Rio das Velhas greenstone...and spatial association of the deposit with the Rio das Velhas orogeny, and location in close proximity |  | | Journal (article/letter/editorial) | | (5–10%), tourmaline (2–10%), beryl (0–8%), and scheelite (2–5%). These veins also contain minor amounts...minor minerals in quartz veins are chlorite, scheelite, calcite, fluorite, tourmaline, and Cr-bearing...The was classified as tectonic magmatic-related scheelite, tourmaline in pegmatite veins indicate a supply... Nevertheless, pegmatites in the Dayakou deposit do not show a direct relationship with a granitic source...W, Sn, and As in emeralds and the presence of scheelite, tourmaline in pegmatite veins indicate a supply |  | Brando Soares, Mariana, Corrêa Neto, Atlas Vasconcelos, Bertolino, Luiz Carlos, Alves, Felipe Emerson André, de Almeida, Antônio Modesto, Montenegro da Silva, Pedro Henrique, Mabub, Ricardo Oliveira de Araújo, Manduca, Luedson Guimarães, Araújo, Ivan Mendes Caixeta de Pamplona (2018) Multistage mineralization at the hypozonal São Sebastião gold deposit, Pitangui greenstone belt, Minas Gerais, Brazil. Ore Geology Reviews, 102. 618-638 doi:10.1016/j.oregeorev.2018.09.028 | Journal (article/letter/editorial) | | Deposit, Pitangui Greenstone Belt, Minas Gerais, Brazil Mariana Brando Soares, Atlas Vasconcelos Corrêa...Deposit, Pitangui Greenstone Belt, Minas Gerais, Brazil, Ore Geology Reviews (2018), doi: https://doi.org/10...Deposit, Pitangui Greenstone Belt, Minas Gerais, Brazil Mariana Brando Soares1, Atlas Vasconcelos Corrêa...de Geociências, Universidade Federal do Rio de Janeiro, Brazil. 2 – Departamento de Geologia, Instituto...Federal do Rio de Janeiro, Rio de Janeiro, Brazil. 3- Centro de Tecnologia Mineral (CETEM), Rio de Janeiro |  | | Journal (article/letter/editorial) | | number of journals as an information service. Please do not write to us to obtain copies of the journals...1989 Ma gold-only deposit (Pará State, northern Brazil), based on sulfur, oxygen, hydrogen, and carbon...103191 Cathodoluminescence and trace elements of scheelite: Constraints on ore-forming processes of the Dabaoshan...mineralization at the Bonfim polymetallic skarn deposit, Seridó mobile belt, Borborema Province, Brazil— Nayara Moreira...in mineralised rocks at the Salobo IOCG deposit, Brazil—A. Henne, D. Craw, E.J. Gagen, and G. Southam article |  | | Journal (article/letter/editorial) | | archaeologists, historians, and others [1]. Colombia, Brazil, and Zambia remain at the top of the list of major...of high-quality production are the deposits of Brazil, Russia, and Zambia, but smaller deposits with...within emerald have been found in emeralds from Brazil, Colombia, Russia, Madagascar, and Tanzania [45]...separate Indian emeralds from those of Colombia, Brazil, China (Yunnan), and Afghanistan (Panjshir), [5... Zimbabwe, Panjshir from Afghanistan, Austria, Brazil, Colombia, and Egypt [1,4,53,56]. To explore the |  | | Book (edition) | | Salinas, Peru, H Variscite, xx 5 mm, Iturnbiara, Brazil, H Rhodocbrosite, polished, 50 mm, Capillitas,... China, H Page 1: MuscO\ite. 45 mm, Linopolis, Brazil, H Page 2: Vivianite, I 00 mm, Huanzala, Bolivia...Brazilianite, 35 mm, Linopolis, Brazil, H Page 13: Gold, 35 mm.Eagle's est Mine, California, G Publi!>hed...(2.B. acanthite group). Monoclinic, C2/m, a,b,c Rio Blanco County. Colorado. AM. 63. 930-937. 1978. 4...Rice, Dolores co., both Colorado, at the Questa mine, Taos co., New 1994. Abernathyite K2[(UOJ 2l(AsO_J2]•6HzO |  | | Journal (issue) | | quantitative chemical analyses to distinguish samples from Brazil, Nigeria, and Mozambique. 660 Geographic Origin...Micro-World, and Charts are not peerreviewed sections but do undergo technical and editorial review. Copyright...Caplan. The back cover shows emeralds from the Chivor mine in Colombia (3.90 ct faceted stone and 2.35 cm crystal)...gemological laboratories who perform this service, do not understand the complexities accompanying the...to use this platform to present what we know and do from our perspective. As one can see, this still |  | | Journal (issue) | | Decade of Change A New Era for the Historic Coscuez Mine Esmeraldas Santa Rosa: Our Wealth is Green Rediscovery...More Exquisite Emeralds Magnificent Old Mine Emeralds 143 Mine Visit A Visit to Colombia’s “Green” Emerald...Origins and Appellation President Clement Sabbagh, Brazil Vice Presidents Damien Cody, Australia Nirmal Kumar...Kumar Bardiya, India Treasurer Marcelo Ribeiro, Brazil Secretaries Bruce Bridges, USA Santpal Sinchawla...acquiring the majority stake in the iconic Coscuez mine in Colombia. The 2015 Symposium focused on the government’s |  | | Journal (issue) | | Federal University of Ouro Preto, Minas Gerais, Brazil **University of Mainz, FRG 1. Introduction The...Grosso and after that using the BR 407 to Senhor do Bonfim. The distance between Salvador and Campo Formoso...been the most important emerald mining region in Brazil until the discovery of the Santa Terezinha occurrence...Formoso/ "fCARNAIBA Mirangaba \ ~ ^ * * *• ASanhnr do Ronf.m Monte Santo ^**ol!Euclides da Cunna Lpindobaçu...*°* ,x Mundo^^^A B a i x a Novo Grand 'Entre Rio« « •««Sao AlagoinhojKy FE IRA DE SANTANA\ (f o\ |  | Amstutz, G. C., Goresy, A. El, Frenzel, G., Kluth, C., Moh, G., Wauschkuhn, A., Zimmermann, R.A. - Eds. (1982) Ore Genesis. Springer Berlin, Heidelberg. doi:10.1007/978-3-642-68344-2 | Book | | block I experienced recently when visiting a gold mine in virtually unmetamorphosed ground. A fault cuts..."common sense" observations described from the gold mine with the chert and the organic matter. Another potent...Alterations of Conglomeratic Uranium Ores, Pronto Mine, Ontario, Canada E.Wm. Heinrich (With 1 Figure)...Observations on Ore Rhythmites of the Trzebionka Mine, Upper Silesian-Cracow Region, Poland L. Fontbote...the Cobaltite-Gersdorffite Series from the Raipas Mine, Finnmark, Norway F.M. Vokes and G.S. Strand (With |  | Amstutz, G. C., Goresy, A. EI, Frenzel, G., Kluth, C., Moh, G., Wauschkuhn, A., Zimmermann, R.A. - Eds. (1982) Ore Genesis - The State of the Art - A Volume in Honour of Professor Paul Ramdohr on the Occasion of His 90th Birthday With Special Reference to His Main Scientific Interests - Special Publication of the Society for Geology Applied to Mineral Deposits No. 2. Springer Berlin Heidelberg. | Book | | block I experienced recently when visiting a gold mine in virtually unmetamorphosed ground. A fault cuts..."common sense" observations described from the gold mine with the chert and the organic matter. Another potent...Alterations of Conglomeratic Uranium Ores, Pronto Mine, Ontario, Canada E.Wm. Heinrich (With 1 Figure)...Observations on Ore Rhythmites of the Trzebionka Mine, Upper Silesian-Cracow Region, Poland L. Fontbote...the Cobaltite-Gersdorffite Series from the Raipas Mine, Finnmark, Norway F.M. Vokes and G.S. Strand (With |  | | Journal (article/letter/editorial) | | Trans-Saharan belt of west Africa, the Atlantic shield of Brazil, the Brasilia fold belt west of the Sao Francisco...of Neoproterozoic eclogites in Gourma, Togo and Brazil together with the correlation of the Kandi fault...Plans are underway to build a large-scale open pit mine, which will lead to recovery of 2.5 t of gold annually...the Brasília fold Belt and Borborema province in Brazil (Pires et al., 2019; Pires et al., 2016; Araújo...mineralizations in the serido belt, Northeastern Brazil. J. S. Am. Earth Sci., 15, 337–348. Araújo, M. |
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