 | Milesi, J.P, Ledru, P, Marcoux, E, Mougeot, R, Johan, V, Lerouge, C, Sabaté, P, Bailly, L, Respaut, J.P, Skipwith, P (2002) The Jacobina Paleoproterozoic gold-bearing conglomerates, Bahia, Brazil: a “hydrothermal shear-reservoir” model. Ore Geology Reviews, 19 (1) 95-136 doi:10.1016/s0169-1368(01)00038-5 | Journal (article/letter/editorial) | | com/locate/oregeorev The Jacobina Paleoproterozoic gold-bearing conglomerates, Bahia, Brazil: a ‘‘hydrothermal...2001; accepted 19 October 2001 Abstract The N – S Jacobina foreland basin is a Paleoproterozoic basin (2080...fuchsite) and euhedral pyrite that crystallized over andalusite. The conglomerates, with their pore * Corresponding...the high thermal regime that characterizes the Jacobina basin could reflect a contribution from both the...conglomerates of the Jacobina basin in the São Francisco province of Bahia, Brazil are of special interest |  | Ledru, P., Mile´si, J.P., Johan, V., Sabate´, P., Maluski, H. (1997) Foreland basins and gold-bearing conglomerates: a new model for the Jacobina Basin (Sa˜o Francisco province, Brazil) Precambrian Research, 86 (3) 155-176 doi:10.1016/s0301-9268(97)00048-x | Journal (article/letter/editorial) | | conglomerates: a new model for the Jacobina Basin (S o Francisco province, Brazil) P. L e d r u a,,, j . p ....metamorphic viewpoint, the Jacobina Basin in the S~o Francisco province (Brazil) is representative of the...evolution is coherent with the development of the Jacobina Basin in a foreland position and its progressive...Davis et al., 1994), Franceville (Gabon), Jacobina (Brazil) and the North Guiana trough (French Guiana)... In this sense, the Palaeoproterozoic Jacobina Basin in Brazil, which has so far produced about 50 t |  | Teixeira, João Batista Guimarães, de Souza, Jorge André Braz, da Silva, Maria da Glória, Leite, Carlson Matos Maia, Barbosa, Johildo Salomão Figueiredo, Coelho, Carlos Eduardo Silva, Abram, Maisa Bastos, Filho, Valter Mônaco Conceição, Iyer, Sundaram S.S. (2001) Gold mineralization in the Serra de Jacobina region, Bahia Brazil: tectonic framework and metallogenesis. Mineralium Deposita, 36 (3) 332-344 doi:10.1007/s001260100174 | Journal (article/letter/editorial) | | Gold mineralization in the Serra de Jacobina region, Bahia Brazil: tectonic framework and metallogenesis...Gold deposits in the Serra de Jacobina region in Bahia, northeastern Brazil, occur in a belt of siliciclastic...Federal da Bahia (CPGG/IGEO/UFBA), Campus UniversitaÂrio de Ondina, CEP 40170-290, Salvador, Bahia, Brazil...2862, Centro Administrativo da Bahia, CEP 41213-000, Salvador, Bahia, Brazil V.M.C. Filho Companhia Baiana...460, Centro Administrativo da Bahia, CEP 41750-300, Salvador, Bahia, Brazil S.S.S. Iyer Department of Physics |  | | Journal (article/letter/editorial) | | Paleoproterozoic crust of the São Francisco Craton, Bahia, Brazil: geodynamic features J.S.F. Barbosa a,∗ , P...40210-340 Bahia, Brazil b IRD—Representation in Brazil CP7091, Lago Sul, 71619-970 Brasilia, DF, Brazil Received...in the basement of the São Francisco Craton in Bahia. The oldest is the Gavião block in the WSW part...extends from SE Bahia along the Atlantic coast to Salvador, then northwards into NE Bahia. It is mainly...Geocronological; Geotectonic models; Mineral deposits; Bahia; Brazil 1. Introduction The essential features of the |  | Davison, Ian, Batista Guimarães Teixeira, João, Da Glória Da Silva, Maria, Barretto Da Rocha Neto, Manoel, Martins Vieira Matos, Fernando (1988) The Rio Itapicuru greenstone belt, Bahia, Brazil: Structure and stratigraphical outline. Precambrian Research, 42 (1) 1-17 doi:10.1016/0301-9268(88)90007-1 | Journal (article/letter/editorial) | | Printed in The Netherlands THE RIO ITAPICURU GREENSTONE BELT, BAHIA, BRAZIL: STRUCTURE AND STRATIGRAPHICAL...T I N S VIEIRA MATOS 2 1Universidade Federal da Bahia, Curso de Pds-gradua¢fio em Geologia, Instituto...Moura, 123, Federa¢5o, CEP40.120, Salvador, Bahia (Brazil) ~DOCEGEO, Rio Doce Geologia e Minera¢5o S.A...Guadalajara, 20, Barra, CEP 40.160, Salvador, Bahia (Brazil) :~C.B.P.M., Companhia Baiana de Pesquisa Mineral...s/n, Centro Administrativo da Bahia, CEP 40.000, Salvador, Bahia (Brazil) (Received and accepted March |  | | Journal (article/letter/editorial) | | Contendas-Mirante Supracrustal Belt, São Francisco Craton, Brazil, as a Paleoproterozoic foreland basin Stefano Zincone...ContendasMirante Supracrustal Belt, São Francisco Craton, Brazil, as a Paleoproterozoic foreland basin, Precambrian...Contendas-Mirante Supracrustal Belt, São Francisco Craton, Brazil, as a Paleoproterozoic foreland basin Stefano Zincone1...of Campinas, P.O. Box 6152, 13083-970 Campinas, Brazil. 2 Department of Geology, School of Mines, Federal...do Cruzeiro, 35400-000 Ouro Preto, Minas Gerais, Brazil. The low-grade Contendas-Mirante meta-volcano-sedimentary |  | | Journal (article/letter/editorial) | | com/loi/tigr20 Geology and Mineral Resources of Brazil: A Review a a Inacio De Medeiros Delgado , Augusto...de Pesquisa de Recursos Minerals, Scdvador, Bahia, Brazil b US. Geological Survey, Denver, CO, 80225...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...de Pesquisa de Recursos Minerals, Scdvador, Bahia, Brazil AND CHARLES H. THORMAN US. Geological Survey |  | | Journal (article/letter/editorial) | | magmatism of the JacobinaContendas Mirante belts (Bahia, Brazil)" Geologic and isotopic constraints on the sources...Salvador (BA) (Brazil) 2Companhia Baiana de Pesquisa Mineral (CBPM), Centro Administrativo da Bahia, 41500 Salvador...Salvador (BA) (Brazil) aCNRS and Blaise Pascal University, F-63038 Clermont-Ferrand (France) (Accepted...magmatism of the JacobinaContendas Mirante belts (Bahia, Brazil): Geologic and isotopic constraints on the sources...and the metasedimentary rocks of the Serra de Jacobina. They are two-mica or muscovite-garnet-bearing |  | | Journal (article/letter/editorial) | | of the Paleoproterozoic Rio Itapicuru granite-greenstone belt (Bahia, Brazil): the role of synkinematic...Caetano Moura, 123 CEP 40210-340 Salvador, Bahia, Brazil c Institut Universitaire de France, Paris, France...structural evolution of the Rio Itapicuru greenstone belt (RIGB, Bahia, Brazil) involves two tectonic events...the RIGB. © 1997 Elsevier Science B,V. Keywords: Brazil; Greenstone belts; Paleoproterozoic ; Quartz fabrics;...the Paleoproterozoic Rio Itapicuru greenstone belt (RIGB, Bahia state, NE Brazil) using structural and kinematic |  | | Journal (article/letter/editorial) | | LAVA SEQUENCES FROM THE RIO ITAPICURU GREENSTONE BELT, BAHIA STATE, BRAZIL A. KISHIDA and L. RICCIO ...Rua Guadulajara 20, Barra, Salvador, Bahia, C.E.P. 40.000 (Brazil) Ontario Geological Survey, Precambrian...lava sequences from the Rio Itapicuru Greenstone Belt, Bahia State, Brazil. Precambrian Res., 11: 161--178...161--178. The Rio Itapicuru greenstone terrain of north-central Bahia State consists of belts of supracrustal...and chemical variations within lavas of the Rio Itapicuru greenstone are comparable to those described from |  | Feybesse, J.L., Johan, V., Triboulet, C., Guerrot, C., Mayaga-Mikolo, F., Bouchot, V., Eko N'dong, J. (1998) The West Central African belt: a model of 2.5–2.0Ga accretion and two-phase orogenic evolution. Precambrian Research, 87 (3) 161-216 doi:10.1016/s0301-9268(97)00053-3 | Journal (article/letter/editorial) | | and Luiza basins (Archean Congo block); Rio ˜ Itapicuru and Rio Jacare greenstone belts (Archean Sao Francisco...kind is described for the Transamazonian belt of Brazil ( Figueirido, 1989; Barbosa, 1990; Teixeira and...oro˜ genic domains of the Sao Francisco craton of Brazil are discussed. 2. Geological Setting of the WCAB...sandstone; 3, biotite mica schist±garnet±staurolite±andalusite. Archean: 4, granite and tonalite [2800 Ma; 207Pb–206Pb...between the ˜ Rio Pardo belt (Sao Francisco craton, Brazil ) and the West Congo belt (Miller, 1983; Maurin |  | | Report (chapter) | | Zimbabwe; the Grenville belt in eastern Canada; Bahia, Brazil; Fiskenaesset, West Greenland; Madagascar; and...banded iron formation (BIF), podded chert, jasper, andalusite – staurolite schist cut by numerous sills, and...–Curaçá orogen, in the São Francisco craton, Brazil. They review the geology and present new U –Pb...of accretion at 2.15 –2.12 Ga formed the Rio Itapicuru and Rio Capim greenstone belts. Between 3.08 and...block margin. Between 2110 and 2105 Ma, the Rio Itapicuru arc collided with the Retirolândia –Jacurici |  | | Journal (article/letter/editorial) | | gold quartz-vein mineralisation at the Tom's Gully mine, Northern Territory, Australia S. Sheppard Key Centre... Igneous rocks and thermal metamorphism in the mine area The Mt Bundey pluton consists of a margin of...dykes, intrude the metasedimentary rocks in the mine area. Granite, aplite and lamprophyre dykes are...reef. Variably altered lamprophyre dykes in the mine area are subvertical and strike N N E - N E parallel...the waning stages of hydrothermal activity. In the mine area, the thermal metamorphic aureole associated |  | | Journal (issue) | | Brazilian emeralds and their occurrences: Carnaiba, Bahia Dr Dietmar Schwarz* and Thomas Eidt, Dipl.Geol...Federal University of Ouro Preto, Minas Gerais, Brazil **University of Mainz, FRG 1. Introduction The...occurrences of Carnaiba and Socoto in the state of Bahia are located at a distance of about 40 kilometres...centre for the gemstones mined in the state of Bahia (besides emerald, others include amethyst, citrine...north-south extending mountains of the Serra de Jacobina (Figure 2). It has an extension of about 200 km |  | | Journal (article/letter/editorial) | | feet above water level. Site: Arizona's Hillside mine, producer of gold, silver, lead, and zinc. The source... found at the Hillside mine at the same time. (Editor's Note: The above mine is at Hillside, Yavapai...matched emerald-cut amethysts from the old amethyst mine near the new waterworks dam at Mountain Ciy, Rabun...corundum mine, Rabun County. The prize of the lot is opalescent rose quartz from the Kell mica mine in Rabun...most interesting article on the Morton Salt Co. mine at Weeks, La. Excerpts from the article are as follows: |  | | Journal (article/letter/editorial) | | (500– 600 °C and 4 –5 kbar) defined by frequent andalusite and staurolite (Armina formation) and locally...(500–600 °C and 3– 5 kbar) defined by frequent andalusite and staurolite porphyroblasts in the volcano-sedimentary...paleoproterozoic granites of the Rio Itapicuru greenstone belt (Bahia, Brazil). C. R. Acad. Sci. Paris 324 (Sér |  | de Araújo, Carlos E.G., Pinéo, Tercyo R.G., Caby, Renaud, Costa, Felipe G., Cavalcante, José C., Vasconcelos, Antonio M., Rodrigues, Joseneusa B. (2010) Provenance of the Novo Oriente Group, southwestern Ceará Central Domain, Borborema Province (NE-Brazil): A dismembered segment of a magma-poor passive margin or a restricted rift-related basin?. Gondwana Research, 18 (2) 497-513 doi:10.1016/j.gr.2010.02.001 | Journal (article/letter/editorial) | | southwestern Ceará Central Domain, Borborema Province (NE-Brazil): A dismembered segment of a magma-poor passive...CPRM-Geological Survey of Brazil, R. Antonio Sales 1418, CEP 60135-101, Fortaleza-CE, Brazil CPRM-Geological Survey...Survey of Brazil, Av. SGAN-Quadra 603 — Conjunto J, Parte A,CEP 70830-030, Brasilia-DF, Brazil Laboratoire...fresh mineral assemblages (garnet, staurolite, andalusite, cordierite, and kyanite porphyroblasts) with...altered and metamorphosed mafic complex at the Itapicuru greenstone belt in the São Francisco Craton. Their |  | | Book | | Nova and Serra do Navio belts, Amapa, Brazil 17.4.4 Rio Itapicuru greenstone belt Early Precambrian mafic—ultramafic...totally absent. For example, both the 2.1 Ga Rio Itapicuru greenstone belt in the Séo Francisco Craton and...Orissa State hee 8 \ ~ ON Weare, EA WW Oe 2 Bahia a RK Great byke Pry ) 5 Na Ss ov ...generated or modified by thrusting (e.g. the Antelope Mine, Zimbabwe: Phaup, 1932; Vearncombe et al., 1988)...such vein currently being mined for Au at the Hunt Mine, Kambalda, Western Australia, occurs immediately |  | Tuduri, Johann, Chauvet, Alain, Barbanson, Luc, Bourdier, Jean-Louis, Labriki, Mohamed, Ennaciri, Aomar, Badra, Lakhlifi, Dubois, Michel, Ennaciri-Leloix, Christelle, Sizaret, Stanislas, Maacha, Lhou (2018) The Jbel Saghro Au(–Ag, Cu) and Ag–Hg Metallogenetic Province: Product of a Long-Lived Ediacaran Tectono-Magmatic Evolution in the Moroccan Anti-Atlas. Minerals, 8 (12). 592pp. doi:10.3390/min8120592 | Journal (article/letter/editorial) | | deposits of the Moroccan Anti-Atlas after the Akka gold mine was closed few years ago. The Imiter concentration...only Minerals 2018, 8, x FOR PEER REVIEW 3 of 47 mine in the world where Co is produced as a primary commodity...giant Ag Imiter mine (8.5 Mt @ 700 g/t Ag; [41,45,51,101,102]) and the Cu Bouskour mine (21 Mt @ 1.3% Cu;...the contact with the country rocks, cordierite, andalusite and biotite related to contact metamorphism are...of retrogressed andalusite muscovite, biotite and small spots of retrogressed andalusite and/or cordierite |  | | Report (issue) | | Wilderness survey of Van Loenen & Scott (1983). Mine and prospect map of the West Needle Wilderness Study...lithic fragments, tourmaline, potassium feldspar, andalusite, albite, amphibole, apatite, calcite, garnet...temperature conditions of regional metamorphism. Andalusite (?) porphyroblasts were locally observed in metamorphosed...reports sericite and chloritoid pseudomorphs of andalusite in "pelitic schist" in the Irving Formation on...examined by this author. It is uncertain whether the andalusite in these rocks is a product of prograde regional |  | | Book | | American Craton 2.7.1 Guiana Shield 2.7.2 Central Brazil Shield 2.8 African Craton: Southern Africa 2.8...3.7.2 Goias Massif, Tocantins Province, Central Brazil Shield 3.7.3 Sao Francisco Craton, Atlantic Shield...Craton 4.7.1 Amazonian Craton: Guiana and Central Brazil Shields (less Tocantins Province) 4.7.2 S5o Francisco...Francisco Craton 4.7.3 Tocantins Province (Central Brazil Shield) 4.8 African Craton: Southern Africa 4.8...(-Patagonian)Craton (1) Guiana Shield, (2) Central Brazil Shield, (3) Atlantic Shield, and buried extensions |  | | Book | | American Craton 2.7.1 Guiana Shield 2.7.2 Central Brazil Shield 2.8 African Craton: Southern Africa 2.8...3.7.2 Goias Massif, Tocantins Province, Central Brazil Shield 3.7.3 Sao Francisco Craton, Atlantic Shield...Craton 4.7.1 Amazonian Craton: Guiana and Central Brazil Shields (less Tocantins Province) 4.7.2 S5o Francisco...Francisco Craton 4.7.3 Tocantins Province (Central Brazil Shield) 4.8 African Craton: Southern Africa 4.8...(-Patagonian)Craton (1) Guiana Shield, (2) Central Brazil Shield, (3) Atlantic Shield, and buried extensions |  | | Journal (issue) | | ........................ 460 1HE SCARLET COPPER MINE, N. C. By C. Henry King ..........................future. I spent much of my time by myself combing the mine dumps in search of silver and other minerals. I...minerals in my pack. Incidentally this field pack of mine is an old and dependable friend. In Germany I carried...permission to collect on the dumps of a working mine. The reasons for the scarcity are: since many mines...dishonest miner, who steal high-grade ore out of the mine in his lunch basket. When precious metals or gems |  | | Report (issue) | | on ground water in Navajo sandstone in the Copper Mine-Preston Mesa area, Coconino County, Arizona, by...Revision of the geology of diamond districts in Bahia, Brazil, by Max G. White and Charles T. Pierson _________...investigations for uranium in the Tucano basin, Bahia, Brazil, by D. D. Haynes and J. J,. Matzko_---364. Thorium...earths in the Po~tos de Caldas zirconium district, Brazil, by Helmuth Wedow, Jr _____________ _ 365. Vegetation-free...trenched, and one radioactive breccia, that of the Rose mine, has been mined for fluorite. The deepest hole, |  | | Book | | papas sa asiSN PEspossns ESE MSE eat 825 828 829 Brazil Chapter 34. MESOZOIC RIFT BASINS AROUND THE NORTHEAST...production exceeded 100 million tons. At the Grace mine, ore production was approximately 50 million tons... 1968; Lapham and Gray, 1973), and of the Grace Mine (Morgantown) deposits (Sims, 1968; Basu, 1974)....sulfide-rich areas may have been avoided during mine development. These magnetite ores are now considered...Gray, 1973), Grace Mine (Sims, 1968), French Creek deposit (Smith, 1931), Ruth Mine (Spencer, 1908), Fritz |
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