 | | 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 |  | | Report (chapter) | | built heritage of the interior of Brazil: the use of stone in Minas Gerais A. G. COSTA Department of Geology...University of Minas Gerais, Av. Antônio Carlos 6627, 31270 – 901, Belo Horizonte (Minas Gerais), Brazil (e-mail:...costa@uol.com.br) Abstract: The cultural heritage of Brazil built with natural stone is expressive and shows...interior, especially in the current State of Minas Gerais, a large number of historic buildings can be...steatites and schists in historic buildings in Brazil, which is part of a research project in progress |  | | Journal (article/letter/editorial) | | . . . . . . . . . . . . . . . . . . . . . 2.1. Brazil . . . . . . . . . . . . . . . . . . . . . . . ...Joäo d’el Rei, Säo Tomé das letras 2.1.2. Diamantina/Grao Region . . . . . . . . . . . . . . . . ...Ludwig von Eschwege – surveyed the Minas Gerais Region of Brazil (Eschwege, 1822, pp. 17–21). The name...of the quartzite-dominated mountain ranges in Minas Gerais. Eschwege applied the name not only to flexible...decline since the early 1700 s and their discovery in Brazil in 1725 was the beginning of a new diamond rush |  | | Journal (article/letter/editorial) | | northern Serra do Espinhac o (State of Bahia, Brazil) G. Morteani1 and D. Ackermand2 1 Geoexpert International...(Northern Serra do Espinhac o, State of Bahia, NE Brazil) about 10 km west of the town of Boquira. Sky blue...thermometry on quartz and hematite and the stability of kyanite, augelite, trolleite and berlinite allow to estimate...world-wide e.g. from the present study area in Bahia (Brazil) by Cassedanne and Franco (1966), Cassedanne et...(1989) and Visser et al. (1997), from Diamantina, Minas Gerais (Brazil) by Horn et al. (1996) and Morteani |  | Cabral, Alexandre Raphael, Wiedenbeck, Michael, Koglin, Nikola, Lehmann, Bernd, de Abreu, Francisco R. (2012) Boron-isotopic constraints on the petrogenesis of hematitic phyllite in the southern Serra do Espinhaço, Minas Gerais, Brazil. Lithos, 140. 224-233 doi:10.1016/j.lithos.2012.01.011 | Journal (article/letter/editorial) | | phyllite in the southern Serra do Espinhaço, Minas Gerais, Brazil Alexandre Raphael Cabral a,⁎, Michael Wiedenbeck...Praça Ramos de Azevedo 206, 01037-010 São Paulo-SP, Brazil b c a r t i c l e i n f o Article history: Received...SIMS Hematitic phylite Southern Serra do Espinhaço Brazil a b s t r a c t Metasiliciclastic rocks predominate...Supergroup, in the southern Serra do Espinhaço, Minas Gerais, Brazil. The lower units also comprise rocks with...hematítico, in the southern Serra do Espinhaço of Minas Gerais, Brazil, has been used as a palaeoclimatic indicator |  | Cabral, Alexandre Raphael, Tupinambá, Miguel, Zeh, Armin, Lehmann, Bernd, Wiedenbeck, Michael, Brauns, Michael, Kwitko-Ribeiro, Rogerio (2017) Platiniferous gold–tourmaline aggregates in the gold–palladium belt of Minas Gerais, Brazil: implications for regional boron metasomatism. Mineralogy and Petrology, 111 (6) 807-819 doi:10.1007/s00710-017-0496-0 | Journal (article/letter/editorial) | | aggregates in the gold–palladium belt of Minas Gerais, Brazil: implications for regional boron metasomatism...The platiniferous gold–palladium belt of Minas Gerais, Brazil, forms an approximately 240-km-long, roughly...Xavier 524 s. A4016, Rio Janeiro-RJ 20550-050, Brazil 4 Deutsches GeoForschungsZentrum GFZ, Telegrafenberg...Rodovia BR 381, km 450, Santa Luzia-MG 33040-900, Brazil tourmaline aggregates seem to be the ultimate...Metasomatism . PdPt . Gold–palladium belt . Minas Gerais . Brazil Introduction Auriferous lode deposits and |  | | 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,...Century. The book is a showcase ofthe best from Brazil and it makes a handsome evocation of what is beautiful |  | | Journal (article/letter/editorial) | | triangular growth island from Novo Horizonte, Bahia, Brazil. Carl Francis specimen. Figure 10 (below). Pyrite...Paulista mine, Presidente Kubitschek near Diamantina, Minas Gerais, Brazil. Si and Ann Frazier specimen. ples...similarity in their crystal structures. Staurolite on kyanite in the paragonite schist from Sponda Alp—Pizzo...The staurolite structure contains a slab of the kyanite structure. Dissolution, the opposite of growth...smoky quartz (7.6 cm) from Novo Horizonte, Bahia, Brazil. Joe and Susan Kielbaso specimen. 30 ROCKS & |  | Gonçalves, Guilherme O., Lana, Cristiano, Buick, Ian S., Alkmim, Fernando F., Scholz, Ricardo, Queiroga, Glaucia (2019) Twenty million years of post-orogenic fluid production and hydrothermal mineralization across the external Araçuaí orogen and adjacent São Francisco craton, SE Brazil. Lithos, 342. 557-572 doi:10.1016/j.lithos.2019.04.022 | Journal (article/letter/editorial) | | Araçuaí orogen and adjacent São Francisco craton, SE Brazil Guilherme O. Gonçalves, Cristiano Lana, Ian S...Araçuaí orogen and adjacent São Francisco craton, SE Brazil, LITHOS, https://doi.org/ 10.1016/j.lithos.2019...Araçuaí orogen and adjacent São Francisco craton, SE Brazil Guilherme O. Gonçalvesa,* goncalves.go@icloud.com... Universidade Federal de Ouro Preto, Escola de Minas, Departamento de Geologia, Campus Morro do Cruzeiro...(eastern border of the São Francisco craton, SE Brazil). We sampled hydrothermal minerals (monazite, rutile |  | | Book | | rutilated topaz, which was first marketed from Brazil and t are virtually opaque. Colorless synthetic...example of rutilated quartz crystals from Minas Gerais, Brazil. Specimen is about I I cm tall. RJL2477...5. Freeform cabochons of rutilated quartz from Brazil, totaling about I00 carats. One can see that the...polymorphism such as Al2$íO5 (andalusite-sillimanite-kyanite) and SíO2 (quartz-cristobalite-tridymite), the...Borborema pegmatitic province in Rio Grande do Norte, Brazil (Beurten et al 2004). Figure 17. Typical striated |  | | Book | | Alkmim Editors São Francisco Craton, Eastern Brazil Tectonic Genealogy of a Miniature Continent Regional...Alkmim • Editors São Francisco Craton, Eastern Brazil Tectonic Genealogy of a Miniature Continent 123...Janeiro Maracanã, Rio de Janeiro Brazil Fernando F. Alkmim Escola de Minas Universidade Federal de Ouro...Preto Ouro Preto Brazil Umberto G. Cordani Universidade de São Paulo São Paulo Brazil ISSN 2364-6438...northern São Francisco craton known as the Chapada Diamantina. The cliffs and mesas expose the Mesoproterozoic |  | | Journal (article/letter/editorial) | | DISTRICT, LESTER DEPOSITS MINAS No. 7 1928 OF THE DIA- GERAES. BRAZIL. S. THOMPSON. CONTENTS. ...Uplift and Erosion .............................. Diamantina Conglomerate ..................................S. THOMPSON. ducers.This•pplies especially to Brazil. Here,withtheimpetusgivendiamondmining in SouthA'frica...•.•- •7 • e ale FIG. I. Sketchmap of the Diamantina District showinglocationof principal upland deposits...DEPOSITS OF MINAS GERAES, BRAZIL. 707 The oldestand most important diamondfield of Brazil, thus far |  | | Journal (article/letter/editorial) | | lazulite, scorzalite, dumortierite, muscovite, kyanite and temperature data from the literature the P-T...described e. g. from the Serra do Espinhaço (Bahia, Brazil, Casse- danne & Franco 1966, Cassedanne et al...al. 1989, Visser et al. 1997), from Diamantina (Minas Gerais, Brazil, Horn et al. 1996, Morteani & Ackermand...coexistence of lazulite and dumortierite with muscovite, kyanite and tourmaline in the rocks that we studied. The...essen- Fig. 5. Shear zone with lazulite (Laz) and kyanite (Ky) clasts surrounded by a felt of dumortierite |  | | Catalog/List | | but differing crystal structures: andalusite. kyanite, and sillimanite. Andalusite is indicative of shallow... moderate temperature, and moderate pressure. Kyanite is characteristic of high pressure and moderate... and there is, it would seem, no theoretir1I kyanite, andalusite, and sillimanite are in mutually stable...been found which contain red andalusite, blue kyanite, and white sillimanite, all in a single sample...field and laboratory identification of andalusite, kyanite, and sillimanite is still of prime importance. |  | | Book | | ltatiaia, Conseilheiro Pena, Governador Valadares, Brazil (Roger Titeux collection, France) 4 inches. Above:...Bahia, Brazil (Yves Gillet collection, France) 1.2 inches. Preceding pages: A Tourmaline, Minas Gerais...Gerais, Brazil (4.2 inches) B Tourmaline, Queen Mine, San Diego County, California (8 inches) C Garnet, hessonite...order to extract the gems. Such was the case in Brazil with diamonds; it is still used in the deposits... as in the case of the amethysts of Uruguay or Brazil. Unlike the precious and semi-precious stones, |  | | Book | | several tons each are known from pegmatites in Brazil and Madagascar as weil as from Alpine type veins...dispersed on our planet and particularly deposits in Brazil and Madagascar are famous and researched in detail;...inclusions. l n Brazil quartz veins and Alpine type veins are particularly known from Minas Gerais, Bahia and...cm. Above. Unknown white fibres in quartz from Brazil. Height 4.5 cm. Oben links. Arsenopyrit im Quarz...and rutile in quartz. Serra dos Crystaes, Bahia, Brazil.12 x 8 cm. Links. Farbzonierung und „Käferbeinchen" |  | | Journal (article/letter/editorial) | | feldspars, 975. S p a i n (Espafia) Galicia: kyanite pseudomorphous after andalusitc, xlix. Portugal...sideronatrite, sulphur, 84. Pakistan Choian, Arab State : kyanite pseudomorphous after andalusite, 669. Hindubagh...AMERICA Bolivia Coehabamba: crocidolite, 291. Brazil Bahia NORTH AMERICA Greenland flimaussag:...: hurlbutite, 427. Itapiuna: scorodite, 428. Minas Gerais Corregio JFrio mine: brazilianite, scorodire...CapSo de Lana, Ouro Preto : plumbogummite, 427. Diamantina: gorceixite, 427. Sapucaia mine: moraesite, 427 |  | | Report (chapter) | | Neoproterozoic Macaúbas Group, Araçuaı́ orogen, SE Brazil A. C. PEDROSA-SOARES1*, MARLY BABINSKI2, CARLOS...FRANCISCO VILELA1 1 Universidade Federal de Minas Gerais, Instituto de Geociências-CPMTC, Campus Pampulha...Pampulha, 31270-901 Belo Horizonte, MG, Brazil 2 Universidade de São Paulo, Instituto de Geociências...Cidade Universitária 05508-080 São Paulo, SP, Brazil *Corresponding author (e-mail: pedrosa@pesquisador...eastern margin of the São Francisco craton (SE Brazil). The Macaúbas basin evolved from a late Tonian |  | Ribeiro, A., Teixeira, W., Dussin, I.A., Ávila, C.A., Nascimento, D. (2013) U–Pb LA-ICP-MS detrital zircon ages of the São João del Rei and Carandaí basins: New evidence of intermittent Proterozoic rifting in the São Francisco paleocontinent. Gondwana Research, 24 (2) 713-726 doi:10.1016/j.gr.2012.12.016 | Journal (article/letter/editorial) | | Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil Instituto de Geociências, departamento de Mineralogia...(05508-080), Universidade de São Paulo, São Paulo, SP, Brazil c Research Fellow of the São Paulo State Research...Geociências, Universidade de São Paulo, São Paulo, SP, Brazil d Museu Nacional, departamento de Geologia e Paleontologia...Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil b a r t i c l e i n f o Article history: Received...identified near São João del Rei (southern Minas Gerais State, Brazil), based on the sedimentary–tectonic history |  | | Journal (article/letter/editorial) | | of the Veredas formation (Northern Espinhaço, Brazil): LA-ICP-MS age determinations on relict and recrystallized...of the Veredas formation (Northern Espinhaço, Brazil): LA-ICP-MS age determinations on relict and recrystallized...quartzites of the Veredas formation (Northern Espinhaço, Brazil): LA-ICP-MS age 3 determinations on relict and...Veredas Formation (Northern 22 Espinhaço fold belt, Brazil) have been dated using laser ablation inductively...1996) are together 62 with the Diamantina Plateau (Chapada Diamantina) prominent geological and 63 |  | | 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) | | hematite, quartz, titanite, chlorite, muscovite, kyanite, andalusite, and pyrophyllite. Microscopic rutile...specinien was recovered in about I Y X O during active kyanite mining oiieration\ at Graves %lorintain, Georgia...collectible specimens, in the Graves Mountain-like kyanite deposit of Willis Mountain, Buckingham County....than those from Graves Mountain occur in similar kyanite-quartz rock exposed on Chubbs and Crowder’s Mountains...to several kilograms have been recovered from a kyanite-rich quartz granofels body that is thought to be |  | Chauvet, A., Faure, M., Dossin, I., Charvet, J. (1994) A three-stage structural evolution of the Quadrilátero Ferriífero: consequences for the Neoproterozoic age and the formation of gold concentrations of the Ouro Preto area, Minas Gerais, Brazil. Precambrian Research, 68 (1) 139-167 doi:10.1016/0301-9268(94)90069-8 | Journal (article/letter/editorial) | | gold concentrations of the Ouro Preto area, Minas Gerais, Brazil A. C h a u v e t , M . F a u r e , I. D...Craton (Brazil), where three major Proterozoic supracrustal units (the "Rio das Velhas", "Minas" and "Itacolomi"...Main Mineralized Contact (located between the "Minas" and "Rio das Velhas" Supergroups), is found within...Introduction The Quadril~itero Ferrifero (Minas Gerais, Brazil), like most of the Archaean greenstone belts...deposited during the Palaeoproterozoic (i.e., "Minas" Supergroup, 2420_+25 Ma and 2050_+ 230 Ma by the |  | | Journal (article/letter/editorial) | | h i s i n d e x . Acari, Rio Grande do Notre, Brazil, Bismutotantalite, 785. Adularia,Zambia, cryst...India, 1018. Alto Feio, Pedra Lavrada, Paraiba, Brazil, bismoclite, bismuth, bismutite, 785. Alunite,...Australia, opal, 429. Andalusite, pseudomorphs of kyanite after, Spain, xlix, West Pakistan, 669. Andradite...li. Arrojadite, Brazil, d.t.a., 427. Arsenic, geochemistry of, 88. Arsenobismite, Brazil, 785. Artern,...Bancroft, Ontario, peristerite, 165. Barbosalite, Brazil, 784. Barium feldspars, see Barinm-orthoclase, |  | | Journal (issue) | | geology, and notable localities of diamond mining in Brazil, and outlines plans for future diamond production... Svisero, James E. Shigley, and Robert Weldon Brazil, which commanded global production in the 1700s...principally in the states of Minas Gerais and Mato Grosso, are presented. W hile Brazil is widely known for...Arraial do Tijuco (later named Diamantina) in the state of Minas Gerais (Calógeras, 1904; Leonardos, 1959;...and Bartorelli, 2010). For the next 150 years, Minas Gerais was the world’s major supplier of gem diamonds |
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