 | | 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...Jequitinhonha River near the village of Arraial do Tijuco (later named Diamantina) in the state of Minas Gerais...and Bartorelli, 2010). For the next 150 years, Minas Gerais was the worldâs major supplier of gem diamonds |  | | Journal (article/letter/editorial) | | (1994) The origin of diamonds in western Minas Gerais, Brazil G.M. Gonzaga 1, N.A. Teixeira 2, and J.C...70380-760 Brasilia, Brazil 2 NTX Consultoria SQN 215 BI. A Apt. 302, 70874-010 Brasilia, Brazil 3 GMP Instituto... Universidade de Brasilia, 70910-900 Brasilia, Brazil Received: 14 May 1993/Accepted: 1 February 1994...mineralized alluvium/colluvium occurs in western Minas Gerais (WMG) in the Brasilia Orogenic Belt (700-450...origin of diamonds from western Minas Gerais (WMG), including the Coromandel area in the Trifingulo Mineiro |  | | Journal (issue) | | 0026-4628 'Continued on p. 415 Articles Diamonds in Brazil .................................................Moore Phosphate minerals from the Leveaniemi iron mine, Svappavaara, Sweden .............................Hollabaugh Laueite from Hagendorf-Siid andthe Palermo mine ................. 363 by L. C. Pitman New data...image of a crack hidden in the back (roof) of a mine adit (from A. P. Annan etal. (1988) Radar sounding...Fundao 21.910 Rio de Janeiro, Brazil Since their discovery in Minas Gerais, near the town of Diamantina |  | GIBSON, S. A., THOMPSON, R. N., LEONARDOS, O. H., DICKIN, A. P., MITCHELL, J. G. (1995) The Late Cretaceous Impact of the Trindade Mantle Plume: Evidence from Large-volume, Mafic, Potassic Magmatism in SE Brazil. Journal of Petrology, 36 (1) 189-229 doi:10.1093/petrology/36.1.189 | Journal (article/letter/editorial) | | GEOCIENCIAS, UNIVERSIDADE DE BRASILIA, 70910 BRASILIA DF, BRAZIL 'DEPARTMENT OF GEOLOGY, McMASTER UNIVERSITY, is8o...plutonic comAlto Paranaiba Igneous Province, in SE Brazil, is one of the plexes at ~ 85 Ma. Reconstructions...is one Late Cretaceous alkaline magmatism in SE Brazil may have of several Cretaceous alkaline igneous...around the margin of the Parana sedimentary basin in Brazil subcontinental lithosphere. Heat penetrating the...from Large-volume, Mafic, Potassic Magmatism in SE Brazil JOURNAL OF PETROLOGY VOLUME 36 Potassic-rich |  | | Book (volume) | | ANDFINSCH KIMBERLIT'ES, SOUTHAFRICA, ANDWILLIAMSON MINE, TANZANIA H.-M. Tsai, O. A. Meyer, 0. Moreau, and...FROM KIFYBERLiTES IN THE COLORADO-WYCâ˘ING STATE mINE DISTRICT 42 M. E. McCal!um, C. D. Mabarak, and... J. Ferguson, an⢠L. P. Black KiPzBERLITâ˘S IN BRAZIL: â˘i⢠INITIAL and DIAMOND C. R. Clement, REPORT...MINERAL CHEMISTRY OF A KIMBERLITE FROM THE PRâ˘Iâ˘IER MINE: Iâ˘iPLICATIONS FOR THE EVOLUTION OF KiFmEHLITIC...mantle. In tro duct i on Introduction kimberlite mine The The Finsch Finsch Pipe Pipe is is aa major kimberlite |  | | Journal (issue) | | 522 J.Gemm., 1981, XVII, 8 GARNETS FROM UMBA VALLEY, TANZANIA: IS THERE A NECESSITY FOR A NEW VARIETY...Idar-Oberstein, W.Germany ABSTRACT The garnets from Umba Valley, Tanzania, consist of solid solution series of...originate from one or more placer deposits in the Umba Valley, Tanzania, and were first sold without an exact...investigations of other garnet specimens from the Umba Valley. The so called 'Malaya-garnets' are members of...described by Jobbins et al (1978) from the Umba Valley, Tanzania, and by Schmetzer & Ottemann (1979) from |  | | Journal (issue) | | feldspar from Congo ⢠Fluorite from the Rogerley mine, England ⢠Demantoid garnet from Iran ⢠Kyanite...tourmaline has come from Madagascarâs Anjanabonoina mine and contains remarkable color zoning, as shown by...Queen pegmatite mine in the Pala district of San Diego County, California, with mine owner Ed Swoboda...Swoboda. This mine has produced large amounts of gem tourmaline, for cut stones and mineral specimens. Photo...been âfashionedâ to look like it was fresh from the mine. Some gemologists and gem dealers have developed |  | | Book | | L.V. 558 Zeilic B.S. 682 648,649 Zhang H. Valley J.W. 83 Zhang P. Vannucci R. 700 Zhang R.Y...underlying the SW Sao Francisco craton margin, Brazil: clues to the origin of EMI-type enriched mantle...and associated rocks from the Alto Paranaiba, SE Brazil..........101 Kimberlite magmatism of the Ukraine...with ultramafic rocks in the Catalao-I Complex, Brazil: possible implications for mantle metasomatism... .287 Mineral inclusions in diamonds from the River Ranch kimberlite. .289 The first finding of Cr-Sr-loparite-type |
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