 | de Almeida, Delia del Pilar M., Conceição, Rommulo V., Chemale, Farid, Koester, Edinei, de Borba, André W., Petry, Karla (2005) Evolution of Heterogeneous Mantle in the Acampamento Velho and Rodeio Velho Volcanic Events, Camaquã Basin, Southern Brazil. Gondwana Research, 8 (4) 479-492 doi:10.1016/s1342-937x(05)71150-3 | Journal (article/letter/editorial) | | Volcanic Events, Camaquã Basin, Southern Brazil Delia del Pilar M. de Almeida1,*, Rommulo V. Conceição2...950 Cristo Rei, São Leopoldo, CEP 93022-000, RS, Brazil 2 Laboratório de Geologia Isotópica, UFRGS, Caixa...91509-900, Porto Alegre, RS, Brazil 3 Graduate student in Geology – CNPq/UNISINOS, Brazil * Corresponding author:...author: E-mail: pilar@euler.unisinos.br (Manuscript received March 1, 2005; accepted June 15, 2005) Abstract...Neoproterozoic/Early Paleozoic transition in southern Brazil was marked by the last phases of the Brasiliano/Pan-African |  | Ribeiro, Yuri, Figueiredo e Silva, Rosaline C., Lobato, Lydia M., Lima, Luiz Claudio, Rios, Francisco J., Hagemann, Steffen G., Cliff, John (2015) Fluid inclusion and sulfur and oxygen isotope studies on quartz-carbonate-sulfide veins of the Carvoaria Velha deposit, Córrego do Sítio gold lineament, Quadrilátero Ferrífero, Minas Gerais, Brazil. Ore Geology Reviews, 67. 11-33 doi:10.1016/j.oregeorev.2014.10.032 | Journal (article/letter/editorial) | | gold lineament, Quadrilátero Ferrífero, Minas Gerais, Brazil Yuri Ribeiro a, Rosaline C. Figueiredo e...Hagemann d, John Cliff d a Universidade Federal de Minas Gerais, CPMTC-Instituto de Geociências, Av. Presidente...– MG, Brazil Aurizona Mineração: Avenida dos Holandeses, Ponta do Farol, São Luís – MA, Brazil c Centro...interaction of the fluid with the Córrego do Sítio and Santa Quitéria carbon-bearing metapelitic host units....et al., 2001). Other than gold deposits, such as Pilar (Jaguar, 2012) and the historically banded-iron-formation-hosted |  | | Journal (article/letter/editorial) | | ©Springer-Verlag 1990 Origin of emerald deposits of Brazil G. Giuliani 1. 2 , L. J. H. D. Silva 3 and P. Couto...Couto 4 1 2 3 4 ORSTOM, Universidade de Brasilia, Brazil c.R.P.G., 15 Rue N.D. des Pauvres, BP 20, 54501...Metais Ltda, Bahia, Brazil Secretaria das Minas e Energia, C.P.R.M./SGM, Bahia, Brazil Abstract. Precambrian...Precambrian emerald deposits of Brazil are found in a typical geologic setting with Archean basement and supracrustal... Gemstone deposits are of great importance in Brazil. Agate, amethyst, tourmaline, and topaz represent |  | | Journal (article/letter/editorial) | | Arehaean and Lower Proterozoic Units in Central Brazil By Jos6 Caruso M. DANNI, tleinhardt A. FvcK and...recognized as Archaean basement rocks in central Brazil: a) High-grade granite-gneiss terrain composed...Geoci~neias, Universidade de Brasilia, 70.910 Brasilia, Brazil. Band 71, Heft 1, 1982, SeRe 291--317 29"[ J...of the Preeambrian basement terrains in central Brazil has allowed the recognition and delimitation of...Porto Nacional in the north of Goi~s to western Minas GerMs, including the granulitized mafic-nltramafic |  | | Catalog/List | | sodium and iron California San Benito River, Gem mine Black prismatic xls imbedded in syenite CROSSITE...iron silicate California San Benito County, Gem mine Compact blue-gray mass with natrolite ..... . GRUNERITE...GRUNERITE Basic iron silicate Michigan Champion, Spons mine White-tan fibrous aggregates in magnetite with stilpnomelane...manganese silicate New York Fowler, Arnold Tale mine Lavender prismatic crystalline mass ...... . LB...mass .............. South Dakota Custer, Bull Moose mine Pure white cleavable mass ........... . MM Fl |  | Campanha, G.A.C., Faleiros, F.M., Cawood, P.A., Cabrita, D.I.G., Ribeiro, B.V., Basei, M.A.S. (2019) The Tonian Embu Complex in the Ribeira Belt (Brazil): revision, depositional age and setting in Rodinia and West Gondwana. Precambrian Research, 320. 31-45 doi:10.1016/j.precamres.2018.10.010 | Journal (article/letter/editorial) | | Manuscript The Tonian Embu Complex in the Ribeira Belt (Brazil): revision, depositional age and setting in Rodinia...Basei, The Tonian Embu Complex in the Ribeira Belt (Brazil): revision, depositional age and setting in Rodinia... The Tonian Embu Complex in the Ribeira Belt (Brazil): revision, depositional age and setting in Rodinia...Instituto de Geociências da Universidade de São Paulo, Brazil 2 School of Earth, Atmosphere & Environment,...Embu Complex in the Neoproterozoic Ribeira Belt of Brazil provides a record of sedimentation associated with |  | | Journal (article/letter/editorial) | | PRECAMBRIAN IN THE SOUTHERN SERRA DO ESPINHA~O, MINAS GERAIS, BRAZIL A. HOPPE Geologisch-Paliiontologisches...Precambrian in the southern Serra do Espinha~o, Minas Gerais, Brazil. PrecambrianRes, 13: 275--296. Middle Precambrian...tectonics and metamorphism. An Archaean basement (Pre-Minas Supergroup) consists of an older granitic unit and...starts north of the Quadril~tero Ferrffero of Minas Gerais and extends N--S for 1200 km as far as Bahia...Pflug and Renger, 1973): (c) post-Minas, (b) Minas, (a) pre-Minas. Following the recommendations of the |  | | Journal (article/letter/editorial) | | S E P T E M B E R / O C T O B E R 1987 317 BRAZIL Moraesite Mr. Carlos Barbosa of Rio de Janeiro...be the world's finest crystals from Galileia, Minas Gerais. The size of the crystals and the placement...reminiscent of faheyite from the nearby Sapucaia mine. Jim McGlasson verified the identification by optics...Africa. Figure 1: Moraesite, Galileia, Minas Gerais, Brazil. Crystals are 3 mm across. CHILE Aubertite...stationed in Madrid. He found the crystals at the Monchi mine, Burgillos del Cerro, Badoz. The attractive prismatic |  | Bogossian, Jessica, Hagemann, Steffen G., Rodrigues, Vinicius G., Lobato, Lydia Maria, Roberts, Malcolm (2020) Hydrothermal alteration and mineralization in the Faina greenstone belt: evidence from the Cascavel and Sertão orogenic gold deposits. Ore Geology Reviews, 119. 103293 doi:10.1016/j.oregeorev.2019.103293 | Journal (article/letter/editorial) | | de Minas Gerais, Avenida Antônio Carlos, n.° 6627, Bairro Pampulha, Belo Horizonte, Minas Gerais, CEP...CEP 31270-901, Brazil 4 Centre for Microscopy, Characterisation and Analysis, University of Western Australia...The Faina greenstone belt is located in central Brazil and contains the Cascavel and Sertão gold deposits...comparable with other orogenic gold systems in Brazil and worldwide. Keywords: Faina greenstone belt...Sertão deposits, hydrothermal alteration, central Brazil 1. Introduction Archean and Paleoproterozoic greenstone |  | | Report (issue) | | and Ore Deposits of the Itabira District Minas Gerais, Brazil GEOLOGICAL SURVEY PROFESSIONAL Prepared...and Ore Deposits of the Itabira District Minas Gerais, Brazil By JOHN VAN N. DORR 20 and ALUIZIO LICINIO...GEOLOGY AND MINERAL RESOURCES OF PARTS OF MINAS GERAIS, BRAZIL GEOLOGICAL SURVEY PROFESSIONAL PAPER 341-C...the Departamento Nacional da Producao Mineral of Brazil under the auspices of the International Cooperation..._____ Thickness and contacts..________________ Minas series ________________________________ Cara§a group |  | | Journal (article/letter/editorial) | | Crust-Mantle Evolution of Archean Crust in Central Brazil Jessica Bogossian *, Anthony I. S. Kemp and Steffen...Abstract: The Goiás Archean Block (GAB) in central Brazil is an important gold district that hosts several...evolution; Goiás Archean Block; central Brazil Central Brazil. Minerals 2021, 11, 944. https://doi.org/10...the only Archean terrane recognized in central Brazil (Figure 1A), was amalgamated into the Neoproterozoic...deposits. These include the worldclass Serra Grande mine, in the Crixás greenstone belt (≤7 Moz Au; AngloGold |  | | Journal (article/letter/editorial) | | and Tan Bao 1 Magmatic process recorded in plagioclase at the Baogutu reduced porphyry Cu deposit, western...mobilization of Ni-Cu-PGE sulfide ores at Garson mine, Sudbury—Joshua Mukwakwami, Bruno Lafrance, and...deposits in the Quadrilátero Ferrífero, Minas Gerais, Brazil—Ana-Sophie Hensler, Steffen G. Hagemann...magmatism in the Nanling belt, southeast China—Pilar Lecumberri-Sanchez, Rolf L. Romer, and Volker Lüders...Proterozoic Mangabeira tin-indium mineralization, central Brazil: Evidence from geology, petrology, fluid inclusion |  | | Catalog/List | | Back Cover COVER PHOTOGRAPH: _ VANADINITE Apache mine, near Globe, Gila County, Arizona. Sharp hexagonal...... . Fl. Utah Toelle Co., Gold Hill, Gold Hill mine. .50 2.50 Transparent xls on limonite with austinite...fluo rescence under ultraviolet light. The Ojuela mine is one of Mexico's largest producers of beautiful...silicate. Arizona Pima County, Ajo, New Cornelia mine. Sky-blue micro xls and coatings on monzonite ..... Arizona Pima County, Ajo, New Cornelia mine. Sky-blue crystals and masses on and in blue shattuckite |  | | 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 yellow |  | | Journal (article/letter/editorial) | | and occurrences of the CrixaÂs Gold®eld, central Brazil Received: 14 November 1999 / Accepted: 18 February...Gold production in the state of GoiaÂs, central Brazil, began in the 18th century, when the bandeirantes...bandeirantes (Portuguese Far West pioneers of colonial Brazil) recovered gold mostly from alluvial and, locally...BrasõÂ lia, P.O. Box 04421, BrasõÂ lia 70919-970, Brazil E-mail: hjost@tba.com.br did the region became...occurrences of the northern domain of the central Brazil Archean terrain, here referred to as the CrixaÂs |  | | Journal (article/letter/editorial) | | Geochronology of the Goiás-Crixás Dike Swarm, Central Brazil: Constraints on the NeoarcheanPaleoproterozoic...Geochronology of the Goiás-Crixás Dike Swarm, Central Brazil: Constraints on the NeoarcheanPaleoproterozoic...Geochronology of the Goiás-Crixás Dike Swarm, Central Brazil: Constraints on the Neoarchean– Paleoproterozoic...563, Cidade Universitária 05508-080, São Paulo, Brazil Abstract The Goiás-Crixás tholeiitic swarm comprises...metamorphic rocks of the Crixás-Goiás Block in central Brazil. Petrographically, the dikes were divided into |  | | Report (issue) | | hornfels …………………………………………………………………………………………………19 Pilar phyllite member ……………………………………………………………………………………………...tuff ……………………………………………………………………………………………………………52 Santa Fe formation …………………………………………………………………………………………………...statement …………………………………………………………………………………………………….55 Pilar anticline ………………………………………………………………………………………………………...statement …………………………………………………………………………………………………59 Pilar-Vadito tear fault ……………………………………………………………………………………………...course of his operation of the Harding pegmatite mine, a wartime source of tantalum, lithium, and beryllium |  | | Report (issue) | | Mineral Resources of the Congonhas District Minas Gerais, Brazil GEOLOGICAL SURVEY PROFESSIONAL PAPER 290...the Departamento N acional da Produfao Mineral of Brazil under the auspices of the International Cooperation...Mineral Resources of the Congonhas District Minas Gerais, Brazil By PHILIP W. GUILD GEOLOGICAL SURVEY ...Departamento N acional da Produ~ao M,ineral of Brazil under the auspices of the International Cooperation...__________________ _ Iron region of central Minas Gerais _______________ _ Congonhas district_ ________________________ |  | | Catalog/List | | 78-79 79 79 79 VANADINITE specimen from the Apache mine, near Globe, Gila County, Arizona GLOBES AND ATLASES...fluo rescence under ultra violet light. The Ojuela mine is one of Mexico's largest producers of beautiful...silicate. Arizona Pima County, Ajo, New Cornelia mine. Sky- blue micro xls and coatings on monzonite .... Arizona Pima County, Ajo, New Cornelia mine. S.ky-bJue crystals and masses on and in blue shattuckite...CLEAVELANDITE California San Diego County, Himalaya mine. White crystalled aggregates; some with quartz, |  | | Book | | BARTORELLI ::• . . .. MINERALS & PRECIOUS STONES OF BRAZIL Sponsored by: VALE MINISTER.IO DA CULTURA ©...Lavra do Sapo, Ferruginha, Conselheiro Pena, Minas Gerais. Collection of Alvaro Lucio. Photograph taken...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 |  | | Journal (article/letter/editorial) | | the San Isidro deposits. Another productive iron mine is E1 Pao, the easternmost deposit in the iron province...consists almost exclusively of hornblende and plagioclase (andesine-labradorite) with accessory minerals...southwest and south of Cerro San Isidro in the area of Santa Barbara, and elsewhere in the vicinity of the district...equigranular fragments (0.1--0.2 mm) of quartz, acid plagioclase and orthoclase, and occasionally subangular epidote...those of itabirite in Itabira do Campo, Minas Gerais, Brazil, iron-formation of the Lake Superior region |  | Ribeiro, B.V., Lagoeiro, L., Faleiros, F.M., Hunter, N.J.R., Queiroga, G., Raveggi, M., Cawood, P.A., Finch, M., Campanha, G.A.C. (2020) Strain localization and fluid-assisted deformation in apatite and its influence on trace elements and U–Pb systematics. Earth and Planetary Science Letters, 545. 116421pp. doi:10.1016/j.epsl.2020.116421 | Journal (article/letter/editorial) | | dos Santos Street, Bloco VI, 35400000, Curitiba, Brazil c Department of Mineralogy and Geotectonics, University... São Paulo, Brazil d DEGEO/EM/UFOP, Morro do Cruzeiro, 35400-000, Ouro Preto, MG, Brazil b a r t i c...granitic mylonite from the Taxaquara Shear Zone (SE Brazil). The mylonite recrystallized under upper-greenschist...from the mid-crust Taxaquara Shear Zone (TSZ, SE Brazil) presents two types of apatite with distinct microstructures...that dissect the Neoproterozoic Ribeira Belt (SE Brazil), developed in response to lateral escape due to |  | Richardson, Stephen V., Kesler, Stephen E., Essene, Eric J., Jones, Lois M. (1986) Origin and geochemistry of the Chapada Cu-Au deposit, Goias, Brazil; a metamorphosed wall-rock porphyry copper deposit. Economic Geology, 81 (8) 1884-1898 doi:10.2113/gsecongeo.81.8.1884 | Journal (article/letter/editorial) | | and Geochemistryof the ChapadaCu-Au Deposit,Goias,Brazil: A MetamorphosedWall-RockPorphyryCopper Deposit...geologicallycomplexPan-Africanmobile belt in centralGoiasstate,Brazil. Mineralizationis hostedlargelyby subhorizontal...smallsizeand Thisreport concernsthe Chapadadepositin Brazil, low grade,but some,suchasthe Mcintyre minein whichwe...son oftheseolderporphyrydeposits to tral Goias,Brazil (S 14o15', E 49ø22'), containsover 0361-0128/86/622/1884-1552...0361-0128/86/622/1884-1552.50 1884 CHAPADACu-AuDEPOSIT,BRAZIL 100 millionmetrictonsof material,averaging0.44 |  | de Almeida, Delia del Pilar M., Zerfass, Henrique, Basei, Miguel A., Petry, Karla, Gomes, Cristiane Heredia (2002) The Acampamento Velho Formation, a Lower Cambrian Bimodal Volcanic Package: Geochemical and Stratigraphic Studies from the Cerro Do Bugio, Perau and Serra De Santa Bárbara (Caçapava Do Sul, Rio Grande Do Sul, RS - Brazil) Gondwana Research, 5 (3) 721-733 doi:10.1016/s1342-937x(05)70640-7 | Journal (article/letter/editorial) | | and Serra De Santa Biirbara (Cagapava Do Sul, Rio Grande Do Sul, RS - Brazil) Delia del Pilar M. de Almeidal...(UNISINOS).Av. Unisinos, 950 - Siio LeopoldolxS, Brazil, E-mail: Pilar@euler.unisinos.br Graduate student in Geology...do Sul (UFRGS), Brazil Department of Geology, University of S i o Paul0 (USP),Brazil Undergraduate student...student in Geology - UNISINOS, Brazil (Manuscript received October 30,2001; accepted April 29,2002) Abstract...The volcanic succession considered is within the Santa BArbara Sub-Basin, a subdivision of a larger volcanic-sedimentary |  | 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– |
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