 | Santos, Felipe Holanda dos, Amaral, Wagner da Silva, Konhauser, Kurt, Martins, Douglas Teixeira, Castro, Marco Paulo de, Queiroga, Glaucia Nascimento, Chi Fru, Ernest, Andersen, Morten B. (2021) Unraveling sedimentary precursors and metal enrichment of high-grade metamorphosed manganese-rich rocks from the Borborema Province, northeastern Brazil. Ore Geology Reviews, 137. 104283pp. doi:10.1016/j.oregeorev.2021.104283 | Journal (article/letter/editorial) | | Borborema Province, northeastern Brazil Felipe Holanda dos Santos a, b, *, Wagner da Silva Amaral b, Kurt Konhauser...Universidade Federal do Oeste do ParaĚ, SantareĚm, PA, Brazil Departamento de Geologia e Recursos Naturais, Instituto...Universidade Estadual de Campinas, Campinas, SP, Brazil c Department of Earth & Atmospheric Sciences, University...Geologia, Escola de Minas, Universidade Federal de Ouro Preto, Ouro Preto, MG, Brazil e Centre for Geobiology...The oxidized manganese ore consists mainly of pyrolusite, manganese-oxyhydroxide and spessartine. The |  | | Book | | MINES AND MINERALS IN BRAZIL --= ¡¡--¡ ¡¡- ¡-¡=- MINES AND MINERALS IN BRAZIL J OSIAS LEAO (ECONOMIC...regarding water power and industry of electr¡icity in Brazil were specially prepared at the Division of Waters........ 189 SUMMARY OF THE MINERAL RESERVES OF BRAZIL..... . ... ....... . .. 199 STATISTICAL TABLES...practically untouched, the mineral reserves of Brazil have already been a source of wealth to many and...without the discovery of the precious metals in Brazil the existence of the modern economic man would |  | | Journal (article/letter/editorial) | | Maharashtra, Central India, and the Gowari W a d h o n a mine-area occupies a small p a r t of the western flank...dolomitic marble of Bichua formation. At Gowari Wadhona mine-area, however, the Chorbaoli and Junewani formations...(braunite-bixbyite-hollandite-hausmannite-jacobsite- manganite-pyrolusite-eryptomelane; t~ou and P~RK~T, 1965), and siliimanite...show eqnigranular euhedral to subhedral habit. Pyrolusite and cryptome]ane, entirely formed as supergene... tirodite and braunite. I t easily alters to pyrolusite and cryptomelane. The chemical composition and |  | | Book | | MINERALS & PRECIOUS STONES OF BRAZIL Sponsored by: VALE MINISTER.IO DA CULTURA Š 2009 - CARLOS CORNEJO...26 mm), Lavra do Sapo, Ferruginha, Conselheiro Pena, Minas Gerais. Collection of Alvaro Lucio. Photograph...photographs: "Parafba" tourmaline (25 x 6 mm), Sao Jose da Batalha, Parafba. Courtesy of Bruno and Rolando Gioia...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 |  | | Report (volume) | | the Serra do Navio district, Territory of Amapd, Brazil, by John Van N. Dorr 2d, Charles F. Park, Jr.,...__________________ (C) Mica deposits in Minas Gerais, Brazil, by W. T. Pecora, M. R. Klepper, and D....11. Plan and sections of the lower adits, Quindio mine, municipio of Cajamarca, Tolima, Colombia._____________________In...Map and sections of the Alumbral quartz crystal mine, municipio of Muzo, Boyacd, "Colombia. ______ _____________...minerals in symmetrically zoned pegmatites of Minas Gerais, Brazil______________________________.In pocket |  | | Report (issue) | | and Ore Deposits of the Alegria District, Minas Gerais, Brazil GEOLOGICAL SURVEY PROFESSIONAL PAPER 341-J...cooperation with the Departamento National da Producao Mineral of Brazil under the auspices of the Agency for...District, Minas Gerais, Brazil By CHARLES H. MAXWELL GEOLOGY AND MINERAL RESOURCES OF PARTS OF MINAS GERAIS...GERAIS, BRAZIL GEOLOGICAL SURVEY PROFESSIONAL PAPER 341-J Prepared in cooperation with the Departamento...Departamento National da Producao Mineral of Brazil under the auspices of the Agency for International Development |  | | Journal (article/letter/editorial) | | to nsutite when heated to 150' c. in air; to a pyrolusite-type structure at 450" c. in oxygenl to bixbyite...series of transitions exist between gamma-MnO2 and pyrolusite. Sorem and Cameron (1960) have also describednsutite...the Molango Piedras Negras area, I The "Tartana" mine, owned and operated by Dimitry Scaiistiri, is located...2nsutite heated to 430o C., ramsdellite, and pyrolusite are given in Table 2a; Fig. 3 shows the x-ray...much sharper diffraction lines than nsutite or pyrolusite (Fig.3). Nsutite heated to 380o C. and electrolytic |  | | Journal (article/letter/editorial) | | carbonate;rarely, it results from Table 1, DFH-169). In this mine, somelayers m chocolate-brown plumo⢠supergene alterationof...areas of rhodochrosite wi⢠drusy cavities, New Ross mine, Lunenburg, Nova Scoti The specimen is ten centimeters...percent;andcopperis lower. Smallamounts the Club House mine, Arkansas, in which such of cobalt,nickel, and thallium...tetragonal system,but well-terminated crystals are Cove mine, Hants, Nova Scotia (Fig. 5); and the vein depositsof... o.⢠â˘.ml 0.⢠o.⢠â˘.â˘1 86 D. F. I-IEWETT mine, Chile, containsabout 3 percentcopper. Th. thalliumcontentis |  | | Journal (article/letter/editorial) | | JULY-A UG UST O195 THE GEOLOGY OF CENTRAL MINAS GERAES, BRAZIL E. C. HARDER Washington, D.C. AND R. T...ores' of Minas Geraes may be classified as follows. SH. K. Scott, "The Iron Ores of Brazil," Jour. Iron...LXI, (1902), 248; O. A. Derby, "The Iron Ores of Brazil," Iron Ore Resources of the World, p. 313, Stockholm... Leith and E. C. Harder, "The Hematite Ores of Brazil and a Comparison with the Hematite Ores of Lake...Ores of Brazil," Econ. Geol., IX, (1914) ioi-iI; E. C. Harder, "The Iron Industry in Brazil," Bull. Am |  | | Journal (article/letter/editorial) | | Journal of the Geological Survey of Brazil vol 5, nÂş 2, 117 - 143, August 2022 Geological characteristics...of the Serra do Navio Formation, Guiana Shield, Brazil, and its manganiferous ores: queluzite as a source...Scarpelli Independent Consultant, Rua da Paz 119, Cotia-SP, Brazil, CEP: 06710-507 Abstract Article Information...AmapĂĄ State, Eastern Guiana Shield, northernmost Brazil, had its reserves of high-grade oxide ores exhausted...Eastern Guiana Shield, in AmapĂĄ State, northernmost Brazil (Fig. 1), and host of important deposits of manganese |  | | Report (issue) | | Mineral Resources of the Congonhas District Minas Gerais, Brazil GEOLOGICAL SURVEY PROFESSIONAL PAPER 290...cooperation with the Departamento N acional da Produfao Mineral of Brazil under the auspices of the International...Mineral Resources of the Congonhas District Minas Gerais, Brazil By PHILIP W. GUILD GEOLOGICAL SURVEY ...cooperation with the Departamento N acional da Produ~ao M,ineral of Brazil under the auspices of the International...__________________ _ Iron region of central Minas Gerais _______________ _ Congonhas district_ ________________________ |  | | Journal (article/letter/editorial) | | Rare. *Pyrolusiteâ˘MnO 2. Quenseliteâ˘Pb2Mnâ˘Oâ˘.H20. Rare. Ramsdellite---MnO 2 (dimorphof pyrolusite). Ranciâ˘iteâ˘(Ca...Occursin prismaticcrystals. Commonlypartly alteredto pyrolusite. Psilomelane--BaR90â˘8'2H.oO (?), R = MnTMchiefly...layersmay be psilo- 'melane,psilomelane and pyrolusite, or psilomelane and cryptoroelane. Also occursin...(pseudomorphs ?) resembling a common variety of pyrolusite. X-ray andchemical studiesof typespecimens by... shouldbe referred to as "psilomelane type." Pyrolusite--Mn02, commonlywith a little non-essential water |  | | Report (issue) | | Colombia and Panama ; Costa Rica; Cuba; Hayti; Brazil; Chile . 85 REFERENCES TO LITERATURE ON ďż˝fANGANESE...(Caucasus), Southern and Central India, and East-Central Brazil, which have hitherto furnished practically the...the war was Russia, followed closely by India, Brazil coming third. Owing to the closing of the Dardanelles...and 1915, when the imports of manganese-ore from Brazil, although con siderably increased, were not sufficient...States. In 1916, however, the export of ore from Brazil was increased nearly two-fold over that of 1914 |  | | Report (issue) | | previously insignificant producers, Australia, Brazil, and Mexico, had come to account for 8 percent...that would use ore from a future mine in the Carajas regon in Brazil. Gabon is also considering the production...For instance, development of the Azul deposits in Brazil and the Tambao deposit in Upper Volta depends upon...deposits are located. of South Africa, Mexico, and Brazil. Deposits in eastern European nonmarket-economy...deposits (table 1); 1971 (Azul (Caraj as) deposits, Brazil). The absence Table 1 also shows cumulative production |  | | Report (issue) | | Porto Rico â˘â˘â˘ United States â˘â˘â˘ Argentina â˘â˘â˘ Brazil â˘â˘â˘ â˘â˘â˘ Chile â˘â˘ ⢠⢠â˘â˘ Ecuador â˘â˘â˘ â˘â˘ ⢠Uruguay...minerals of corr1mercial impo-r ta.nce include :-(1) pyrolusite (MnO2 ), containing ,~Then pure 63¡2 per qent...to witl1stand excessive disintegration betwee,n mine and destination, a11d should arrive in coherent...d manganese dioxide present in pyrolusite. and psilomelane : Pyrolusite. ,,,. - - ..-- ' ⢠Psilomelane...be 60, 70, 80, or even 90 per cent. TuinO2 , pyrolusite is ob,riously the best ore, psilomela,ne may |  | | Book | | cm Page 251: Calcite, Irai, Rio Grande do Sul, Brazil * 12.5 x 10 x 10.5 em Page 252: Gypsum rosette...environment. solidified. In some basalts of India and Brazil, these cavities are large enough for a person...before it ABOVE: Imperial topaz, Ouro Preto, Minas Gerais, Brazil ° 3.3 x 2.7 x 1.8 om, 159.10 ct RIGHT: Round...mineral pigments. LEFT: Malachite, Bwana MâKubwa Mine, Ndola, Copperbelt, Zambia * 22 x 26 x 16 cm 22...Namibia * 20 x 18 x 14 cm Bladed stibnite, Ichinokawa Mine, Saijo, Shikoku, Japan * 10 x 1 x 1 om Acicular |  | | Book | | On a spectacular find of crocoite in the Adelaide mine, Dundas, Tasmania (by A. H. Chapman) 3:111-113 ADOLFSSON...AJO Famous mineral localities: the New Cornelia mine, Ajo, Arizona (by W. J. Thomas & R. B. Gibbs) 14:283-298...ALLEN, GEORGE B. --and W. Hunt: The Tonopah-Belmont mine, Maricopa County, Arizona 19:139-144 ALLGOOD, GENNE...Allgood, C. Williams: Ramsdellite from the Mistake mine [Arizona] 14:333-335 ALLGOOD, ROBERT W. -with G...the Mistake mine [Arizona] 14:333-335 ALMA Famous mineral localities: the Home Sweet Home mine, [near Alma |  | | Report (issue) | | pdf. Cover. Photograph of the Mamatwan open pit mine in South Africa. The black manganese layer is about...folded layering is shown by the shapes of the various mine benches. Lighter material in the background is waste...............................................L18 Mine Waste Characteristics ........................................................................L22 Mine Closure...................................................L11 Photograph of the Mamatwan open pit mine in South Africa ............................... |  | | Report (volume) | | .......................................... 183 Brazil.......................................................................................... 183 Minas Geraes districts..................................manganese ore at the Piedmont Manganese Company's mine................................... '39 3. Sketch...distribution of manganese ore lumps in clay at the Crimora mine.................................................... 7. Sketch showing concentric layers of pyrolusite and psilomelane.... 8. Map showing the principal |  | | Book (edition) | | Utah 283 12 HYPOTHERMAL DEPOSITS 293 Morro Velho, Brazil 297 Broken Hill, New South Wales, Australia...MESOTHERMAL DEPOSITS 317 Coeur dâAlene, Idaho 319 Magma Mine, Arizona 325 Chuquicamata, Chile 333 14 EPITHERMAL... 453 Nickel Deposits of New Caledonia Morro da Mina, Brazil 470 Bauxite Deposits of Jamaica 472 466...Besides, what we are pleased to call the riches of a mine, are riches relatively to a distinction which nature...also advocated by Joseph Brunner (1801), a Bavarian mine official. Scipione Breislak (1811) an Italian geologist |  | | Book | | Springfield show ( 1995: 582). Madawaska [Faraday] mine near Bow Lake, Hastings County. Some of the world's...property of, the old Madawaska uranium mine (called the Faraday mine before 1964). The mineral assemblage...Trimble and Cowgill, 1977). LATINAMERICA BRAZIL Jacupiranga mine, Sao Paulo. Among the crystallized minerals...Oblast. Alpine-type clefts in the famous Dodo quartz mine commonly contain ilmenite, occurring as lustrous...ilmenite crystals as described here for the Dodo mine. In general, ilmenite crystals from the Subpolar |  | | Journal (article/letter/editorial) | | 900 and 600 Ma. In tonnage, however, Urucum in Brazil and its extension, Mutun in Bolivia account for...Rhodochrosite Braunite Cryptomelane Manganite Pyrolusite Hausmannite Psilomelane Amorphous oxides Kutnahorite...critiquing the manuscript. Any remaining errors are mine. Thanks to my students at Cincinnati and in South...tephroite-bearing rocks from the Hoskins manganese mine, New South Wales, Australia: Neues Jahrbuch fĂźr...Paleoproterozoic crust of the Sao Francisco craton, Bahia, Brazil: geodynamic features: Precambrian Research, v. |  | Hodges, C.A., Cox, D.P., Singer, D.A., Case, J.E., Berger, B.R., Albers, J.P. (1984) U.S. Geological Survey-INGEOMINAS mineral resource assessment of Colombia. Open-File Report Vol. 1984 (84-345) US Geological Survey doi:10.3133/ofr84345 | Report (issue) | | deposits of such minerals in adjacent areas of Brazil and Venezuela suggest that eastern Colombia may...deposits, based on analogy with adjacent areas in Brazil and Venezuela. An initial reconnaissance should...R., Ricardo, 1979, Geologia y geoquimica de las minas de esmeraldas de Gachala, Cundinamarca: INGEOMINAS...CaJemarce-Ceuce-Romeral Cyprua type massive aulfida (3.1) Paao da Bo bo, (Cauca), La Marina, (Valla) Volcanogenic...ÂŤ7. PASTO AMD NORTH TO POPAYAN. EAST OF HANIZALES Da posit type Known deposits Hot sprint Au, A* (5 |  | | Journal (volume) | | Deposits in the CarajĂĄs Mineral Province, ParĂĄ State, Brazil Rosaline Figueiredo e Silva, Lydia Maria Lobato...educated Dutch geologist and permanent resident of Brazil with an M.Sc. degree in metamorphic geology, under...in the Espinhaço Range and has worked widely in Brazil and shield South America, mainly on exploration...geologic, mineral resources, and geotectonic map of Brazil, published in 4 sheets and in DVDGIS format with...the CSIRO in roles including science adviser for mine processing. He previously advised companies such |  | | Book | | ............. 57 The Porto Trombetas Bauxites, Brazil ............................... 58 Alteration Rate......................... 84 In the Mana us Area, Brazil .... .... ........ ... ..... ................................................ 119 The Lafaiete Deposit of Brazil .......................................ORSTOM C.P. 11 .348 05422-9 70 Sao Paulo (S.P.), Brazil BRUNO BOULANGE, lnstituto de Geociencias USP...ORSTOM C.P. 11.348 05422-970 Sao Paulo (S.P.), Brazil Centre de Geochimie de la Surface 1 Rue Blessig |
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Morro da Mina mine, Conselheiro Lafaiete, Minas Gerais, Brazil