 | | Journal (article/letter/editorial) | | .......................................... Morro da Mina .................................................. 12 13 15 15 15 19 20 20 21 ABSTRACT. Brazil has beena small but consistentsourceof manganeseore...BIacional da Produ•o Mineral. 1 2 PARK, DORR, GUILD, AND BARBOSA. (a) The Queluz or Morro da Mina type... The Urucum depositsand two depositsof the Morro da Mina type have large reservesof export-gradeore....cometo dependupon Brazil {or a smallbut steadyoutputof this material. •Unt{1recentlythe Brazil{an iron and |  | 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 Pará, Santarém, 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...manganese silicates, and the man ganese oxides cryptomelane (K[Mn4+, Mn2+]8O16) and pyrolusite (Mn4+O2) |  | | 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. I t easily alters to pyrolusite and cryptomelane. The chemical composition and optical properties...been detected for the first time in Gowari Wadhona mine-area. I t occurs as well developed crystals with...less frequent in the gondites of Gowari Wadhona mine-area, though it is abundant in other parts of the |  | | Book | | MINERALS & PRECIOUS STONES OF BRAZIL Sponsored by: VALE MINISTER.IO DA CULTURA © 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 |  | | Journal (article/letter/editorial) | | constraints on late miocene weathering rates in Minas Gerais, Brazil Isabela de Oliveira Carmo a,1, Paulo Marcos...one grains of cryptomelane, collected at 0, 42, 45, and 60 m depths in the Cachoeira Mine weathering profile...profile, Minas Gerais, permit calculating long-term (10 Ma time scale) weathering rate (saprolitization...(saprolitization rate) in SE Brazil. Pure well-crystallized cryptomelane grains with high K contents (3–5 wt.%) yield...calculate the saprolitization rate for the Cachoeira Mine lithologies and for adjacent weathering profiles |  | | Journal (article/letter/editorial) | | mineralsdefinitely. In theseveins,hollandite,psilomelane, cryptomelane, For manyyears,the identityof thesemineralscould...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 |  | | Journal (article/letter/editorial) | | the Molango Piedras Negras area, I The "Tartana" mine, owned and operated by Dimitry Scaiistiri, is located...also been observeddurine heat treatments of cryptomelane by Faulring et al. (1960). Differential thermal...in a sample from the Morro da Mina mine, Lefaiete District, Minas Gerais, Brazil. Sorem and Cameron (1960)...BusuangaIsland, Philippinesand the euadriIatero Ferrilero, BraziL sreenivas (1947) reports natural ,,gammamanganesedioxide"...strongly developedcolumnar jointing (Fig. 6). The Morro da Mina material is a soft, brown' earthy mass, whereas |  | | Journal (article/letter/editorial) | | Journal of the Geological Survey of Brazil vol 5, nº 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...Amapá State, Eastern Guiana Shield, northernmost Brazil, had its reserves of high-grade oxide ores exhausted...Eastern Guiana Shield, in Amapá State, northernmost Brazil (Fig. 1), and host of important deposits of manganese |  | | 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 |  | | Journal (article/letter/editorial) | | 1942. Richmond, W. E., and Fiefschef, Michael: Cryptomelane, a new name for the commonest ot?the "psilomelane"...reflectedlight, would give the X-ray pattern of cryptomelane, and yet might have a compositionmarkedlydifferent...alsoMnII, Cu, Zn. Crednerite--CuMn•O4. Rare. *Cryptomelane--KRaOx0 (?), R = MnTMchiefly,also Mnn, Zn, Co...obtainedby analogyto the formulasof hollanditeand of cryptomelane, which give almostidenticalX-ray powder photographs...recentlydemonstratedby Frondeland Heinrich.5 Cryptomelane--KRsO•6 (?), R: MnTMchiefly,alsoMn•x,Zn, Co |  | | 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 |  | | Journal (article/letter/editorial) | | also be separated when the dominant mineral is cryptomelane, manganite, nsutite, psilomelane, or todorokite...900 and 600 Ma. In tonnage, however, Urucum in Brazil and its extension, Mutun in Bolivia account for... 538 J. BARRY MAYNARD Rhodochrosite Braunite Cryptomelane Manganite Pyrolusite Hausmannite Psilomelane...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 für |  | | 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 ............................... |  | De Putter, Thierry, Liégeois, Jean-Paul, Dewaele, Stijn, Cailteux, Jacques, Boyce, Adrian, Mees, Florias (2018) Paleoproterozoic manganese and base metals deposits at Kisenge-Kamata (Katanga, D.R. Congo) Ore Geology Reviews, 96. 181-200 doi:10.1016/j.oregeorev.2018.04.015 | Journal (article/letter/editorial) | | deposits of Gabon and the Serra do Navio deposit in Brazil (see e.g. 55 Laznicka, 1992; Varentsov, 1996;...core sections. A third manganese-rich facies is cryptomelane-dominated oxidized 163 ore (see De Putter...occurrences of 248 Paleoproterozoic manganese ores in Brazil, for which petrographic data are relatively scarce...Paleoproterozoic manganese deposits in Africa and Brazil (Fig. 13a), δ13C values for 419 Kisenge-Kamata...Aspectos metamórficos da Formação Lafaiete em 618 Morro da Mina, Distrito de Lafaiete, MG. Boletim do Instituto |  | | 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 |  | | 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 |  | 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...«7. PASTO AMD NORTH TO POPAYAN. EAST OF HANIZALES Da posit type Known deposits Hot sprint Au, A* (5 |  | | Journal (volume) | | Deposits in the Carajás Mineral Province, Pará 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 (volume) | | with ~9% Mn coexisting with alabandite of the Sätra mine, see p. 69; and with 5.6% Mn coexisting with niningerite...as components of the Pb-Zn ores of the Huanzala mine, 250 km north of Lima, Peru, where Fe-Mn sphalerite...distribution for both sphalerite types within the mine [36]. Mn-containing sphalerite (with 19.8 to 1.8...greenish yellow in thin sections) from the Nebazawa mine epithermal Au-Ag ores, Gumma Prefecture, Japan,... see the original paper [22, pp. 221/3, 245/6]: mine and prefecture; n = number of analyses MnS lnakuraishi |  | | Report (volume) | | Low-temperature veins consist of pyrolusite, cryptomelane, psilomelane, hollandite and todorokite, whereas...5). The deposits in Rio das Velhas Supergroup (Brazil) and Chitradurga Group (India) are restricted to...7 Ga Rio das Velhas Supergroup Morro do Mina, Minas Gerais, Brazil Geosyncline; Mn silicatecarbonate...manganese orebodies (pyrolusite, manganite, cryptomelane, braunite) are interbedded with shale and are...condition developed. Sedimentary manganese deposits (cryptomelane, minor braunite), associated with BIF, occur |  | | Report (volume) | | based on considerations that extend far beyond the mine itself, in some instances relating to the overall...subject, as in a scale model of the workings of a mine, to a unifying concept that explains or describes...government believed might someday be economic ta mine. Stratiform deposits of large areal extent, such...EXAMPLES High Plateau, Del Norte Cty, USCA Coto Mine, Luzon, PLPN (Wells and others, 1946) (LeBlanc...DEPOSITS Name Ace of Spades Adobe Canyon Gp. Ajax Alice Mine Allan (Johnson) Alta Hill Althouse Alyce and Blue |  | Gaines, Richard V., Skinner, H. Catherine W., Foord, Eugene E., Mason, Brian, Rosenzweig, Abraham, King, Vandall T. (1997) Dana's New Mineralogy (8th ed.) Wiley-Interscience. p.1872 | Book (edition) | | Connecticut. Luiz A. D. Menezes: Belo Horizonte, Minas Gerais, Brazil. William C. Metropolis: Mineralogical Museum...Potosi SLP Mato Grosso Sul MS Sinaloa SIN Minas Gerais MG ee abasco Tamaulipas Tlaxcala Veracruz...Wokitecas eel TMPS Tia VER YUC ZAC States, Brazil Acre Alagoas Amapa Amazonas Bahia Ceara Para...Canada, Short Course, Vol. 1 Marine Geology Memorias da Academia das Ciencias de Lisboa, Classe de Ciencias...Spotsylvania Co., and Partridge mine, Orange Co., VA, and at Dahlonega, GA; Homestake mine, Lawrence Co., SD; Silver |  | | Book | | sills), if they are exposed in outcrop or in the mine workings at all. The Climax Mo complex is the best...known (e.g. the Montana Tunnels deposit, Obelisk Mine). The former locality contains disseminated pyrite...accumulated in endocontact stockworks. The small Jessie mine in the Breckenridge field (about 2 t Au; Lovering...cover sequences, and 1034 Fig. 28-14. Jessie gold mine, Breckenridge, Colorado. LITHOTHEQUE, after Ransome..."metalliferous granites", that might be economic to mine in bulk in the future. Most examples of such granites |  | | Book | | sills), if they are exposed in outcrop or in the mine workings at all. The Climax Mo complex is the best...known (e.g. the Montana Tunnels deposit, Obelisk Mine). The former locality contains disseminated pyrite...joints ~~jr-*~z?Z. Joint pattern ί Quarts veins ft Mine; fr-iron, Cwcefiper, m U.S. Homestead mmmww** Vehicle...accumulated in endocontact stockworks. The small Jessie mine in the Breckenridge field (about 2 t Au; Lovering...parallel fissures and veinlets Fig. 28-14. Jessie gold mine, Breckenridge, Colorado. LITHOTHEQUE, after Ransome |
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