 | | Journal (article/letter/editorial) | | deposits of the Neoproterozoic Mara Rosa magmatic arc, central Brazil Claudinei G. de Oliveira *, Márcio...Universidade de Brası́lia, Brası́lia-DF, 70910.900, Brazil Received 18 August 2003; accepted 24 April 2004...the Neoproterozoic Goiás Magmatic Arc, central Brazil, dates back to the beginning of the 1970s. The...Neoproterozoic juvenile crust, the Arenópolis and the Mara Rosa arcs, are identified. They lie in the southern...NNE-striking volcanosedimentary belts. Recent U – Pb zircon data indicate crystallization of the tonalite protoliths |  | Matteini, M., Junges, S.L., Dantas, E.L., Pimentel, M.M., Bühn, B. (2010) In situ zircon U–Pb and Lu–Hf isotope systematic on magmatic rocks: Insights on the crustal evolution of the Neoproterozoic Goiás Magmatic Arc, Brasília belt, Central Brazil. Gondwana Research, 17 (1) 1-12 doi:10.1016/j.gr.2009.05.008 | Journal (article/letter/editorial) | | s ev i e r. c o m / l o c a t e / g r In situ zircon U–Pb and Lu–Hf isotope systematic on magmatic rocks:...evolution of the Neoproterozoic Goiás Magmatic Arc, Brasília belt, Central Brazil M. Matteini a,⁎, S.L. Junges...Universidade Federal de Ouro Preto, 35400, Ouro Preto, MG, Brazil Geochronology Laboratory, Instituto de Geociências...Universidade de Brasília, 70910 900, Brasília, DF, Brazil a r t i c l e i n f o Article history: Received...May 2009 Keywords: Goiás Magmatic Arc LA-(MC) ICP-MS Hf isotopes Neoproterozoic Zircon geochronology a |  | | Journal (article/letter/editorial) | | Abstract Brazil has been a major but intermittent producer of gold since its discovery in 1500. Brazil led...hosted in Archean rocks produced 66% of the gold in Brazil, whereas deposits in Paleoproterozoic and Neoproterozoic...lia, Brazil E.A. Ladeira Rua Muzambino 355/404, Belo Horizonte, Minas Gerais 30310-280, Brazil Deposits...importance. The Archean and Paleoproterozoic terranes of Brazil largely lack base-metal-rich volcanogenic massive...in the CarajaÂs Mineral Province. Introduction Brazil has been an important producer of gold for centuries |  | | Journal (article/letter/editorial) | | StoneLine LateriticProfileof the PosseDeposit, Central Brazil CLAUDIO G. PORTO Universidade FederaldoRiodeJaneiro... CidadeUniversit•ria, RiodeJaneiro, 21910-240, Brazil AND MARTIN HALE International Institute for Aerospace...nearthe town of Mara (McFarlane,1976; Butt, 1981; Nahon, 1986). Although Rosa,Goi•ts, Brazil,some400 kmnorthofBras[lia(Fig...locallysiliceousand tigationshavebeenconductedin Brazil (Michel, 1987; Ol- cancontainseveralintercalationsof...5/a08-14 $4.00 308 Au REDISTRIBUTION,POSSEDEPOSIT,BRAZIL 309 m 0 --LEGEND-- T T T TOPSOILi::•:::':':' |  | | Journal (article/letter/editorial) | | assemblage from Neoproterozoic mélange, Central Brazil Matthew T. Brown, Reinhardt A. Fuck, Elton L. Dantas...assemblage from Neoproterozoic mélange, Central Brazil, Precambrian Research (2019), doi: https://doi...assemblage from Neoproterozoic mélange, Central Brazil Matthew T. Browna*, Reinhardt A. Fucka, Elton L...University of Brasília, Brasília, Federal District, 70910-900, Brazil *Corresponding author. E-mail address:...Abstract The Neoproterozoic Brasília belt, central Brazil, formed during the amalgamation of West Gondwana |  | | 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...Estado do Rio de Janeiro Maracanã, Rio de Janeiro Brazil Fernando F. Alkmim Escola de Minas Universidade...Preto Ouro Preto Brazil Umberto G. Cordani Universidade de São Paulo São Paulo Brazil ISSN 2364-6438...significant contributor to the mining industry in Brazil. This book provides a state of knowledge overview |  | | Journal (article/letter/editorial) | | Mafic-Ultramafic Complexes, western Borborema Province, Brazil: geochemical and isotope constraints for evolution...Mafic-Ultramafic Complexes, western Borborema Province, Brazil: geochemical and isotope constraints for evolution...Mafic-Ultramafic Complexes, western Borborema Province, Brazil: geochemical and isotope constraints for evolution...Brasilia, Brasilia, DF, Brazil ²CPRM – Geological Survey of Brazil, Recife, PE, Brazil *Corresponding author...Brígida domains, Borborema Province, Northeast Brazil. Ultramafic lithologies including metadunites, |  | | Book | | domínio oceânico (em branco) e sedimentares (em rosa); as altas estão representadas em laranja. Também...o caso de um cinturão colisional (continentes em rosa), mas bacias de antepaís se formam também associadas...pequenas aberturas oceânicas e os oceanos formados (Goiás, Borborema, Adamastor e Climene) tinham ligações... que incidiu pelo menos no Rio Grande do Sul e Goiás; o de 650-600 Ma, o mais generalizado no território...reconhecido, com pequena área ex- exposto (escudos, em rosa) e a cobertura de plataforma (em amarelo). O Brasil |  | | Report (issue) | | crystal weighed 455 kilograms. 2m: The Queen Anne mine in Zimbabwe has produced crystals up to 2 meters...some pegmatites. This specimen, from Minas Gerais, Brazil, is housed in the Deutsches Edelstein Museum in...crystals are found in soils and stream gravels in Brazil. On the other hand, at high temperatures and pressures...near Sabsar, on the Gilgit to Skardu Road, Skardu district, Northern Areas, Pakistan. Collection Ty Lawrence;...and quartz; 15 cm from the Shigar Valley, Skardu district, Northern Areas, Pakistan Because it is associated |  | | Book | | BARTORELLI ::• . . .. MINERALS & PRECIOUS STONES OF BRAZIL Sponsored by: VALE MINISTER.IO DA CULTURA ©...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...Landmann. CDD-549 Indexes for systematic catalog: 1. Brazil: Minerals and precious stones: Mineralogy and gemology |  | | Journal (issue) | | :1nily c a pa c ity of 2500 tons. l'lurine; 1940 the mine produced 10,524,,45 pounds of co pper, <37,891 ounce"...ore which ga ve 20,881 tons of concentr~te s . The mine wa s controlled by the ,illacond " Copper ;F1ning...** 111 ZIRCON .!;N!l <:BC;)NJUM Introduction The most abundant zirconium mineral zircon, occurs in... as to be of commercial import ~ n ce. Sven if zircon does not, by itself, occur in commercial concentrat...recovery of chromite from the se sands may recov~r zircon 9S 9 valuable by-product. The increa sed use of |  | Liu, Chao, Hystad, Grethe, Golden, Joshua J., Hummer, Daniel R., Downs, Robert T., Morrison, Shaunna M., Ralph, Jolyon P., Hazen, Robert M. (2017) Chromium mineral ecology. American Mineralogist, 102 (3) 612-619 doi:10.2138/am-2017-5900 | Journal (article/letter/editorial) | | Mammoth-Saint Anthony Mine (Mammoth-St Anthony Mine; Mammoth Mine; St. Anthony Mine), St. Anthony Deposit...Deposit, Tiger, Mammoth District, Pinal Co., Arizona, U.S.A. 3 Callenberg North Open Cut (No. 1), Callenberg...Negev, Israel 5 Red Ledge Mine, Washington, Washington District (Omega District), Nevada Co., California...Kamakusa, Mazaruni District, Guyana 7 Red Lead Mine, Dundas Mineral Field, Zeehan District, Tasmania, Australia...Anchor Mine (Aggravation Mine; East Vulture Mining Co. Mine), Hummingbird Spring, Osborn District, Big |  | Crósta, A.P., Reimold, W.U., Vasconcelos, M.A.R., Hauser, N., Oliveira, G.J.G., Maziviero, M.V., Góes, A.M. (2019) Impact cratering: The South American record – Part 1. Geochemistry, 79 (1) 1-61 doi:10.1016/j.chemer.2018.06.001 | Journal (article/letter/editorial) | | State University of Campinas, Brazil University of Brasília, Brazil Natural History Museum – Leibniz...d Federal University of Bahia, Brazil e University of São Paulo, Brazil b c A R T I C LE I N FO A B...Universitária ‘Zeferino Vaz’, Campinas, SP, CEP 13083-855, Brazil. E-mail address: alvaro@ige.unicamp.br (A.P. Crósta)...xxx–xxx A.P. Crósta et al. offshore region of Brazil. Once again, this number of impact structures in...research and meteoritics have been presented in Brazil and Argentina by renowned researchers in the field |  | | Journal (article/letter/editorial) | | DETERMINATeION OF QUARTZ PEGMATITES IN VEINS AND BRAZIL. DJALMA GUIMAR•ES. CRITICAL ASPECTS OF AGE...quartz deposits.in the quartz-producingareas of Brazil. They have found that in the northeasternand m...paper. 100 AGE DETERMINATION OF QUARTZ VEINS IN BRAZIL. 101 This distribution appears to indicate a...Paleozoic is fairly well representedin various parts of Brazil (2). In other words, as Cambro-Silurian formations...hydrothermalalteration. AGE DETERMINATION OF QUARTZ VEINS IN BRAZIL. 103 Dana'sSystemof Mineralogy,1944Edition,stateson |  | | Journal (article/letter/editorial) | | monazites from pegmatites in eastern Minas Gerais, Brazil* K. J. MURATA~, C. V. DUTRA:, M. TEIXEIRA DA...G., Brazil. Instituto de Pesquisas Radioativas, Escola de Engenharia, Belo Horizonte, M.G., Brazil. The...monazitesfrom pegmatitesin easternMinas Gereis,Brazil The data obtained in our study are interpreted...heavy minerals, such as monazite, xenotime and zircon, by panning the saprolite. Not all pegmatites contain...Juiz de Fora Ibitigusia. Ibitiguaia E&v& E&~&J District 2. S&I Bento Orquima 10 km SW of locality |  | | Journal (issue) | | Lytle Coleman, Owner/Operator Mine Owner of Lava Cap Thunderegg, Mine Shaft Thunderegg, Eggzilla Thunderegg...726 Durham St. Hellertown, PA 18055 ROUGH GEMS MINE-DIRECT FACETING ROUGHS & MINERAL DIAMOND PACIFIC...Aquamarine, Tourmaline, Amethyst, Garnel, Beryl, Zircon and so much more from our mines in Africa. Mesh/Grit...twenty-five inches tall. Many are made and imported from Brazil. The number of gemstones on those trees ranges...collected at their Yellow Gem Mine, in Idaho. PHOTO BY YELLOW GEM MINE This exotic common opal from |  | | Journal (article/letter/editorial) | | specimen raised of filiform Native Silver, from the mine Wheal St. Vincent, in the parish of Calstoek, Cornwall...Mr. H. (Mr. Jacob Forster) not only to work the mine, but also an edict that it should be closed after...Far inferior Sulphurs to this lot from the said mine were sold in France and Russia from s to s piece;...Hampden Turner) took the chalcedony from Trevascus mine, Gwinear, Cornwall, for s Many important specimens...Covcnt Garden. A copy of this catalogue is in the posse~ion of the writer. 1816. Mar. 25. Part I, 6 days' |  | | Journal (article/letter/editorial) | | borehole at the Korshunovskoye boron deposit, Irkutsk district, Siberia, Russia. Occurrence: In dolomite marble...Bi3+24Cr6+8O57(OH)6•3H2O T RIGONAL Locality: São José mine, Lavra da Posse, São José de Brejaúba, Conceição do Mato...Mato Dentro County, Minas Gerais, Brazil. Occurrence: Associated minerals are: pucherite, schumacherite...)3, a new mineral from Brejaúba, Minas Gerais, Brazil: description and crystal structure. American Mineralogist...granite. Associated minerals are: quartz, hafnian zircon, tantalite–columbite, fluorite and magnetite. General |  | | Journal (issue) | | Miners Convention meeting at Burton's Tropico Gold Mine and Mill, near Rosamond, Calif., viewed the silver...something out of the Old West. Burton's Tropico Gold Mine is one of the largest gold mines in the West for...all is the information it contains. From Agate to Zircon, arranged in alphabetical DESERT WILD FLOWERS order... 200 copy edition of the story of the lost gold mine in the High Sierras $8.50 GHOSTS OF THE ADOBE WALLS...Made for Groups, In Advance BURTONS' TROPICO GOLD MINE AND MILL TOURS, Inc. ROSAMOND, KEI!N COUNTY, CALIFORNIA |  | | Journal (article/letter/editorial) | | of secondary minerals at the Spring Creek copper mine, on the flank of Mount Remarkable, near Wilmington...quartz – feldspar – tourmaline rock in an abandoned mine at Sierra Gorda, near Antofagasta, Chile. Schlüter...discovery locality, the Brandholz-Goldkronach mining district, Germany. Found as a product of alteration of...Fürstenzeche lode, Brandholz-Goldkronach mining district, in the western part of the Fichtelgebirge, Bavaria...locality. Found at the Cerchiara manganese (braunite) mine, Val di Vara, eastern Liguria, Italy. Basso, R. |  | | Journal (article/letter/editorial) | | being investigated [6–10]. For example, recycling mine waste for Minerals 2020, 10, 523; doi:10.3390/min10060523...being investigated [6–10]. For example, recycling mine waste for metals and other associated resources... identified by a prominent 1.8–2.0 Ga detrital zircon age peak. Subsequent work in East-Central Idaho...identified significant age peaks in the detrital zircon record at 0.9–1.3 Ga, 1.9–2.0 Ga, in addition to...2.0–2.2 Ga, and 2.4–2.9 Ga from >1400 detrital zircon analyses [24]. The identification of multiple age |  | | Report (issue) | | Blue Ridge province _____________ _ Spruce Pine district ____________ Madison County and Haywood County...County _____________________ _ Zirconia district ___________ ----Macon, Jackson, and Clay Counties __ ----...Monazite localities-Continued South America-Continued Brazil-Continued Beach placers _________________________...and Idaho. Most of the world output has come from Brazil, India, and the Republic of South Africa, but 12...maintained from 1948 until at least 1961 at extensive zircon-rutile placers along the southeastern coast of |  | | Journal (issue) | | Mexico. Oct. 1 5-17—Luna county fair and Sh :riffs Posse rodeo, Deming, N< w Mexico. Oct. 15-17—Greenlee...HOUSE Desert Magazine's New Home Is Open LOST MINE New Clues to the Pegleg Gold By H. E. W. WILSON...we told you about the melting snow on the Santa Rosa mountains—and the pure snow water which filters...what this town is?" he growled at me. "This map of mine has a name for every dog-house for 300 miles and...sudden. I tried to figure it out. There's nothing to mine in that sand, and anyway, they were clearing the |  | | Journal (issue) | | Williams, Arizona. FIELD TRIP Feb. 14-15—Missionary district of Arizona of Episcopal church. Flagstaff, Arizona...Number 4 FEBRUARY, 1950 By AL HAWORTH LETTERS LOST MINE MINING TALL TALES 17 Comment by Desert leaders...club weekend camping trip to Cat Canyon in Santa Rosa mountains. COMMENT Gems and Minerals BOOKS Just...for eternity. For the burning sun is a friend of mine, And the scorching wind is to me sublime. Alkali...at the Yellow Cat uranium mine in Utah, five miles west of the Cactus Rat mine. We Followed the Lure of |  | | Journal (issue) | | Arizona. Feb. 2-8—Desert Museum field trip to calcite mine west of Salton Sea in California's Coachella Valley...Life on the Desert By LOUISE SWITZER THOMPSON LOST MINE Quest for the Peralta Gold By ROBERT L. ©ARMAN...barge skippers who hauled gold ore from the old Moss mine in Oatmai after the civil war. Behind John's cottage...little-known areas from Coachella Valley's Santa Rosa Mountains to Boquillas Canyon in the Big Bend country...slowly about. But there! On the smallest desk near mine lay all six grains in a neat little pile. "You win |
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