 | | Journal (article/letter/editorial) | | underlying manganese crust of the Tambao deposit (northern Burkina Faso). Geological setting and development...development of the pisolitic formations The Tambao manganese deposit consist of two 80 meters high hills mainly... F[6. 1. Schematic section of the main hill of Tambao manganese deposit showing the different lateritic...and hausluannite) and manganese silicates as rhodonite and tephroite. Four successive surfaces can be...regression could occurs during this period in the Tambao area. This interpretation is coherent with marine |  | | Journal (article/letter/editorial) | | dans t rois gisements d'Afrique de I'Ouest Mokta, Tambao, Nsuta E. A. Perseil Laboratoire de Mineralog:ie...Gisements de manganese: A: Mokta. B: Nsuta. C: Tambao . . ,. . . . Par l'analyse min~ralogique...d'Afrique de l'Ouest; Tambao, dans la zone sah~lienne. Si l'on dolt tenir Mokta et Tambao comme de petits gisements...plus marqu6 ~ Tambao off apparaissent des gneiss fins et des amphibolites..A Nsuta et ~ Tambao, des intrusions...hausmannite, plus rarement la rhodonite ou la tTphro'ite. La rhodochrosite domine ~ Tambao et Nsuta] la spessartite |  | | Book | | Deposits (Nsuta, Ghana; Mokta, Cöte d'Ivoire; Tambao, Burkina Faso (Upper Volta» 2.2.3.1. Geological Setting...Alteration 2.2.3.2.1. Nsuta 2.2.3.2.2. Mokta 2.2.3.2.3. Tambao 2.2.3.3. Mineralogy and Geochemistry of the Late...General characteristics 2.2.3.3.2. Mokta 2.2.3.3.3. Tambao 2.2.3.3.4. Nsuta 2.2.3.4. Features of the Protore...Paleokarst: Deposits of the Postmasburg Region, Griqualand West, Cape Province, South Africa 3.3.1. Geological...Bishop, Lohatlha, Glosam, and Kapstewel, Postmasburg Region, Griqualand West 3.3.2.3. Processes of the Manganese |  | | Report (issue) | | given to a plant that would use ore from a future mine in the Carajas regon in Brazil. Gabon is also considering...development of the Azul deposits in Brazil and the Tambao deposit in Upper Volta depends upon the construction... ),;J",>-~ AUSTRALIA r?''A f'~ ·Groote Eylandt mine~·,; \ ,,..-··· '\ }... _,,,.r·:.,.• ,.j J ·· ...TABLE mine (1959), the Mamatwan mine (1964), the Wessels mine (1973), the Middelplaats mine (1979),...the Black Rock mine, the world manganese production accounted for by the Smartt mine (which opened in |  | | Journal (article/letter/editorial) | | from an aggregate of plates from Rengersdorf. region. Samples from the Buruktal, Shcherbakov, and Kempirsai...of lithio phorite from the Moa deposit (Ovente Province, Cuba) and Co-Ni-asbolan and Co-Ni-lithiophorite...intergrowths with cryptomelane (Fig. 9). In the region of Groot Eylandt (Australia), lithiophorite is...Africa [28, 29, 31] are the manganese deposits Tambao (Upper Volta), Mokta (Ivory Coast) and Nsuta (Ghana);...of weathering of spessartine, amphibole, and rhodonite gondite, and forms pseudomorphs after spessartine |  | Milesi, J. P., Marcoux, E., Nehlig, P., Sunarya, Y., Sukandar, A., Felenc, J. (1994) Cirotan, West Java, Indonesia; a 1.7 Ma hybrid epithermal Au-Ag-Sn-W deposit. Economic Geology, 89 (2) 227-245 doi:10.2113/gsecongeo.89.2.227 | Journal (article/letter/editorial) | | polymetallicsulfideoresandlocalrhodochrosite-rhodonite (stagec), preciousbrecciatedoreincludingbonanzas...the southeast Severalauthors(VanBemmelen, Asian province. Goldproductionin Indonesia Primarygoldproductionin...thisoutputis obtainedfromCirotan,the district'smain gold mine since1955, which has a dailyproductionof some200...whichthenanastomosed to West Java,and productionfrom this mine is due to echelon outlinebrecciabodies,whereasthe... Themineralizedfaultis800 m longfromnearGunmain mine, is containedwithin the Bayahdome, a River,hasa |  | Nahon, Daniel, Beauvais, Anicet, Boeglin, Jean-Loup, Ducloux, Jacques, Nziengui-Mapangou, Pacome (1983) Manganite formation in the first stage of the lateritic manganese ores in Africa. Chemical Geology, 40 (1) 25-42 doi:10.1016/0009-2541(83)90089-x | Journal (article/letter/editorial) | | weathering of such minerals as rhodochrosite MnCO3 and rhodonite MnSiO3. It would be difficult to review the entire...conditions, of a rock made up of 75% pyroxmangite, 8% rhodonite and 6% rhodochrosite, Mn-amphibole and serpentine...thermodynamic values. Manganite may only exist in a pH region > 7.5 (at 25°C and 1 atm, for log [Mn 2÷] = -6...1953. The manganese mineralizations at the Merid-Mine, Minais-Gemis, Brazil. Ph.D. Thesis, Harvard University...dans trois gisements d'Afrique de l'Ouest: Mokta, Tambao, Nsuta. Miner. Deposita, 13: 295--311. Roy, S. |  | | Journal (article/letter/editorial) | | lumped together with the output of a larger local mine. The locality registered in the literature is thus...of an orebody (or orebodies). At the old Crimora Mine in Virginia (Eilertsen and Feiss, 1946), "about...credited with 1045 Mn mines. This amounts to one mine per 362 km 2. Canada, on the other hand, has only...occurrences contain more than 100 t Mn (i.e., one Mn mine per 551,000 km2). Some small mineralized belts,...each in the Central India Mn Belt, the Ouarzazate region of Morocco, the South Urals, and the western United |  | | Book | | Semi-Arid Regions: the Brazilian Sertao and the African Sahel .................... . . 157 1 Introduction ....plasma. To what extent these processes affect any region on earth depends on the processes involved, on...also found in the Ifni granite of the Anti-Atlas region, Morocco, for instance. First case: calcite replaces...barite in certain Parna soi ls of the Murrumbidgee region, New South Wales.Aust JSci 20:274- 275 Bech J,...mulations calca ires dans les limons de Matmata de la region de Ga bes en Tunisie.Sci Geol Bull (Strasb) 37:387-398 |  | | Journal (article/letter/editorial) | | or of spessartine + quartz + Mn amphiboles __+ rhodonite __+ hyalophane __+ Mn stilpnomelane -t- ilmenite...sediments with spessartine and quartz, commonly with rhodonite and other * In memory of Dr Alfred Leube (1926-1994)...rocks containing rhodochrosite, spessartine, and rhodonite. A manganiferous amphibole, tirodite, has been...(Birimian) rocks of Ghana are part of the Eburnean province of the Man shield, which is the southern part...Gondite Recrystallized quartz Spessartine (Ga) Rhodonite (Rdn) Calcic manganoan amphibole* (Cam) Tirodite |  | | Journal (article/letter/editorial) | | hausmannite±rhodochrosite±tephroite±spessartine±rhodonite jacobsite from a possible carbonate precursor...the other hand, span the immiscible, two-phase region which, according to experimentally determined solvi...assemblage and absence of Mn silicates such as rhodonite and pyroxymangite in the spessartine-bearing rocks...without the presence of additional phases such as rhodonite, braunite, hausmannite, pyroxmangite, bixbyite...the study. The Management and Sta of the Nsuta mine, Ghana, oered tremendous help during ®eldwork in |  | | Journal (article/letter/editorial) | | the younger sequence dated at 18849/29 Ma (Montana Mine Formation; Redden et al., 1990). The only carbonates...Labrador Trough, Canada 2169 /2142 Ma Nabberu Province, Australia ca. 2173 Ma Aravalli Supergroup ...recrystallized dolomites were sampled in the Copperbelt-Omaha mine area (Location 7 in Fig. 8). Poorly preserved stratiform...(1984) Rhodonite and spessartine (Ponomarenko, 1973) Mn-rich silicates (Kulish, 1970) Rhodonite, bustamite...SerShchipanskiy, ies), KMA, Russia 1987) Boiko et al. Rhodonite (Kanygin Temryukskaya Suite, et al., 1969; KravCentral |  | Deng, Xiao-Dong, Li, Jian-Wei, Vasconcelos, Paulo M., Cohen, Benjamin E., Kusky, Timothy M. (2014) Geochronology of the Baye Mn oxide deposit, southern Yunnan Plateau: Implications for the late Miocene to Pleistocene paleoclimatic conditions and topographic evolution. Geochimica et Cosmochimica Acta, 139. 227-247 doi:10.1016/j.gca.2014.04.036 | Journal (article/letter/editorial) | | landscape evolution. Weathering profiles in the Baye Mn mine are dominated by 20-30 m thick saprolites, which...older weathering profiles, now dismantled, in the region. Manganese oxide 40 Ar/39Ar ages of the Baye...Mn-bearing minerals mainly including spessartine and rhodonite (Fig. 3c), preferentially along schistosity within...stratified weathering profiles were present in the region, they would potentially provide a more complete...stratigraphy for a single weathering profile at Cachoeira Mine of Minas Gerais in NE Brazil, which they interpreted |  | | Book (edition) | | Erythrine Topaz simple twins Bustamite lamellar Rhodonite yes Fluorite polysynthetic Baddeleyite lamellar... Mineral Descriptions Molybdenite in Graphite; Bogala Mine, Sri Lanka 51 Copper, native Synonym(s): Cuivre...of cuprite (bluish grey); North Mine (North Broken Hill Mine; NBH Mine), Broken Hill, Yancowinna Co.,...internal reflections); Madenköy Mine, Çayeli, Rize Province, Black Sea Region, Turkey (sample: Halbach); XPL...(greenish grey; arg); Monte Narba Mine, San Vito, Cagliari Province, Sardinia, Italy; PPL B Same sample |  | | Report (issue) | | mining heritage via an underground mine tour of the Ontario mine and to enjoy the scenery and amenities...19 19 20 20 20 20 21 21 21 THE ANTLER CHLORITE MINE, SOUTHWESTERN MONTANA: REDISCOVERY, GEOLOGY, AND... . . . . . . . . . . . 28 Geology of the Antler Mine . . . . . . . . . . . . . . . . . . . . . . . ..... . . . . . . . . . . . . . . . 161 JADE AND RHODONITE DEPOSITS, BRITISH COLUMBIA, CANADA . . . . . ... . . . . . . . . . . . . . . . . . . . . 168 RHODONITE . . . . . . . . . . . . . . . . . . . . . . . |  | | Book (volume) | | 4 ; they usually result in silicates (chiefly rhodonite and, in the presence of an ample supply of AL...rhodochrosite, and the silicates braunite, tephroite, and rhodonite, along with many other Mn-rich silicates (as,...reported from alluvial deposits of the centrat Aldan region, see pp. 11/2. Solid Salutions of Mn with Native...altered olivine-leucite basalt of the Koshmansai region, Kurama Range, Uzbekistan, an Mn-rich phase was...eruptive breccias near Volnovakha, eastern Asov Sea region, Ukraine. The steel gray silicides have a metallic |  | | Book (edition) | | Riebeckite VIII/F.08-50 Bustamite VIII/F.18-40 Rhodonite VIII/F.27-10 852 854 856 858 VIII/H - Phyllosilicates...(yellowish white), quartz (dark grey); New Bullfrog mine, Nye Co., Nevada, USA [h]; Nic. // Anhedral electrum...(greenish grey), quartz (dark grey); New Bullfrog mine, Nye Co., Nevada, USA [h]; Nic. // Anhedral electrum...(bluish grey shades), quartz (dark grey); New Bullfrog mine, Nye Co., Nevada, USA [h]; Nic. // 8 Gold A ...sample - photo A), dolomite (dark grey); Harstigen Mine, Pajsberg, Filipstad, Värmland, Sweden [j]; Nic |  | | Journal (article/letter/editorial) | | gondites, besides spessartine, contain quartz, rhodonite, b r a u n i t e , and j a c o b s i t e ; of...e n t s of t h e p r i m a r y o r e s a r e rhodonite, bustamite, tephroite, h e m a t i t e and sometimes...DANS TROIS GISMENT D'AFRIOUE DE L'QUEST: Mokta, Tambao, N s u t a : Min. D e p o s i t a , v. 13, no. |  | | Report (volume) | | Gordon P. Eaton, Director Published in the Central Region, Denver, Colorado Manuscript approved for publication...Grupo Roraima e Interpretation Petrologica en la Region del Noreste del Parque Nacional Canaima, Estado...and Petrologic Interpretation in the Northeast Region of Canaima National Park, Estado Bolivar, Venezuela)............... 5 Granitic rocks of the Parguaza province and their equivalents...........................rapikivi texture is characteristic of the Parguaza province. Quartz veins, pegmatite, and greisen in the Parguaza |  | | Report (volume) | | mineralization in the PlioceneQuaternary Calatrava Region (central Spain) 29 43 81 91 105 117 123 139...lacustrine formation in a Tertiary continental-volcanic province. The ores (braunite, pyrolusite) interfinger with...hausmannite, huebnerite and/or Mn silicates (rhodonite, bustamite, tephroite), Mn carbonate and Mn sulphide...the West African craton (Ghana, Ivory Coast, Burkina Faso, Mali, Eastern Liberia, Guinea) is unique among...intracontinental rift; Mn Tambao, Burkina carbonate in black shale in Faso transition zone between volcanic |  | | Book (edition) | | Linopolis, Brazil, H Page 13: Gold, 35 mm.Eagle's est Mine, California, G Publi!>hed by Grdllit.u.o. Stefanikova43...expressed in abbreviations: Rep. (republic), prov. (province), co. (county), munic. (municipio), pref. (prefecture)...abbreviated, e.g. canton (Switzerland), vilayet (Turkey), region (Chile), kray and oblast (Russia). The country...rich Katanga province was renamed Shaba by Mobutu, and is now the Katanga administrative region again. The...The former Kivu province is now divided to three regions: INTRODUCTION Nord-Kivu, Sud-Kivu, and Maniema |  | | Book | | prior to the meeting and the Sludyanka phlogopite mine at Irkutsk afterwards. Precambrian Mineral Deposits...studies in beneficiation and metallurgy, design of mine and process plant, and, last but not least, the...evidence on the origin of the Shamrock v 11 N o copper mine, Rhodesia", Min. Deposits« > « 3 , pp. 298-310....complexes. This can be illustrated by the Pechenga region in the north-western part of the Kola peninsula...sulphide coppernickel deposits of the Pechenga region were subjected to metamorphism together with ore-bearing |  | | Book | | metalliferous region has been eroded affects its present characteristics as a minera1 province, because of...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...BALKHASH (PRIBALKHASH) REGION, KAZAKHSTAN, U.S.S.R. This is an outstanding region of Permo-Carboniferous...stratovolcanoes. The region is densely mineralized and contains the principal Soviet porphyry Cu-Mo province estimated |  | | Book | | reasons for the approach taken Mineral deposit or mine? A genetic model as the basis for exploration The...many geologists who have given their time during mine visits and responded to our queries. We have benefited...Decline Doline A downward inclined tunnel into a mine or potential ore body. A funnel-shaped depression...shaft excavated upwards for connecting levels in a mine or ore body. Ripping The removal of overburden...of the problems which face the mine geologist. The function of the mine geologist varies considerably |  | | Book | | metalliferous region has been eroded affects its present characteristics as a mineral province, because of...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...BALKHASH (PRIBALKHASH) REGION, KAZAKHSTAN, U.S.S.R. This is an outstanding region of Permo-Carboniferous...stratovolcanoes. The region is densely mineralized and contains the principal Soviet porphyry Cu-Mo province estimated |
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