 | | Journal (article/letter/editorial) | | possibility of dating K-rich manganese oxides from the hollandite group, such as cryptomelane (K1-2Mn8O16, nH2O)...lateritic manganese ore deposit of Tambao (northern Burkina Faso), a present unexploited deposit among...collected from the massive 80-m high Mn-rich hill at Tambao. A detailed petrographical study shows that these...mm/Ma. These ages clusters show that weathering at Tambao was functioning during the early Eocene and thus...closed supergene K-bearing minerals from the hollandite group (aMnO2). Minerals from this group have |  | | Journal (article/letter/editorial) | | pisolites; Paleoclimate; Planation landsurface; Burkina Faso; West Africa * Corresponding author. I.R.D...formations capping stepped landsurfaces of the region, e.g., bauxites, and the Paleogene climatic changes...geomorphologic patterns of the Mn-rich formations of the tambao Manganese ore deposit with (b) a section (A–B)...This Mn-oxide is the K-rich end-member of the hollandite group (X(Mn4+Mn2+)8O16-(X-Ba, K, Na, Pb)) minerals...pisolitic crust facies collected at the Tambao manganese deposit, Burkina Faso (Fig. 1), which is one of the most |  | | Journal (article/letter/editorial) | | K-bearing minerals such as K-Mn oxides from the hollandite group (AxBsO16, nH20 , where A represents K +...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...regression could occurs during this period in the Tambao area. This interpretation is coherent with marine |  | | Journal (article/letter/editorial) | | weathering history of the Central African Great Lakes Region – Tectonics drives, climate assists Thierry De...weathering history of the Central African Great Lakes Region – Tectonics drives, climate assists, Gondwana Research(2020)...weathering history of the Central African Great Lakes Region – tectonics drives, climate assists Thierry De...Kasekelesa (former Katanga Province) and Mwene-Ditu (former Kasai Province). For the present study, cryptomelane-rich...Kisenge deposit, in the western part of the Lualaba Province (formerly Katanga) of the Democratic Republic |  | | Journal (article/letter/editorial) | | cuirass. In the group cryptomelane, coronadite, hollandite the ratio: (Ba, K, Pb)/H20 equals generaly 1...cryptomelane and higher temperature for coronadite and hollandite. Optical properties of these oxides seem to be...(1931) tr6s souvent associde aux psilom61anes. La hollandite, la cryptomdlane, et la coronadite forment une...qui a pour formule A R s O a6 (A = Ba pour la hollandite; K pour la cryptom61ane; Pb pour la coronadite)...africains Dans les grands gisements africains (Tambao, Haute Volta, Mokta-Cdte d'Ivoire, Moanda-Gabon) |  | | 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 |  | | Journal (article/letter/editorial) | | the piemontite-bearing horizons of the St. Marcel Mine, Praborna (Aosta Valley, Italy). These oxides are...that these oxides belong to the cryptomelane-hollandite-coronadite isostructural series. They represent...fi la s6rie isostructurale de la cryptom61ane-hollandite-coronadite. Ils repr6sentent des termes interm6diaires...MnO et le MnO 2 X (Fig. 3) correspond fi la hollandite t6tragonale (Giovanoli et Perseil 1987). En lumi~re...isostructurale de la cryptom61ane) et le baryum de la hollandite rev~tent pour K a y u p o v a la mame signification |  | | 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...deposit, southern Urals, where it is accompanied by hollandite, cryptomelane, and todorokite. In lateritic chemogenic...Africa [28, 29, 31] are the manganese deposits Tambao (Upper Volta), Mokta (Ivory Coast) and Nsuta (Ghana); |  | | Journal (article/letter/editorial) | | (1978) stressed that the presence of birnessite in Tambao (northern Upper Volta) is generally linked to the...spessartite in the gondites of Mokta (Ivory Coast), Tambao (Upper Volta) and Nsuta (Ghana) (Perseil and Grandin...and Ito, J., 1960. New date on birnessite and hollandite. Am. Mineral., 45: 871--875. Giovanoli, R. and...1953. The manganese mineralizations at the Merid-Mine, Minas Gerais, Brazil. Ph.D. Thesis, Harvard University...dans trois gisements d'Afrique de l'Ouest: Mokta, Tambao, Nsuta. Mineral. Deposita, 13: 295-311. Potter |  | 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...profiles (Thomas, 1994). The potassium-bearing hollandite-group manganese oxides (K-Mn oxides) are amongst...minor amounts of pyrolusite, lithiophorite, and hollandite (Table EA1 and Fig. 4 and 5). Cryptomelane occurs...phases such as pyrolusite, lithiophorite, or hollandite (Fig. 4a, c). Secondary electron image and XRD |  | Parc, Sylvie, Nahon, Daniel, Tardy, Yves, Vieillard, Philippe (1989) Estimated solubility products and fields of stability for cryptomelane, nsutite, birnessite, and lithiophorite based on natural lateritic weathering sequences. American Mineralogist, 74 (3-4) 466-475 | Journal (article/letter/editorial) | | SupplyPaper 16674, l-64. mineralizationat the Merid mine, MiHoren, A. (1953)The manganese nas Gerais, Brazil...mangandsedans trois gisementsd'Afrique occidentale:Mokta, Tambao, Nsuta Mineralium Deposita, 3, 295-321. Post,J...displacementsin hollandites: Structure refinementsof hollandite, B38, 1056-1065. and pnderite.Acta Crystallographica...structure of K, r,MnsO,6and cation ordering in Hollandite-type structures.Acta Crystallographica,B42, 162-167 |  | | Journal (article/letter/editorial) | | subrectangular tunnels in the analogous cryptomelane/hollandite/priderite, romandchite and todorokite mineral...Mn-oxides (intermediate members of the cryptomelane-hollandite series) (Perseil, 1988); and now strontiomelane...1995: the Srequivalent of the cryptomelane (K) - hollandite (Ba) series showing that there is extensive solid-solution...rather similar structures of the cryptomelane/hollandite/ priderite group ( 2 • roman6chite ( 2 • and...dans trois gisements d'Afrique de l'Ouest: Mokta, Tambao, Nsuta. Mineral. Deposita, 13, 295-311. Perseil |  | | Journal (article/letter/editorial) | | (Birimian) rocks of Ghana are part of the Eburnean province of the Man shield, which is the southern part...(Stilp)* Parsettensite (Pars)* Hyalophane (Hyal)* Hollandite(?) Graphite (?) Rutile 2) Mn oxide rock ~ Quartz...manganese oxides are lithiophorite, vernadite, hollandite, and nsutite. The manganese rocks of the Nangodi...Kajilidongri/India (Bhattacharya et al., 1984). Hollandite is stable only in high-temperature assemblages...spessartine + amphibole. During metamorphism, hollandite + clay may react to form hyalophane + spessartine |  | | Journal (article/letter/editorial) | | numerical constraints on long-term weathering rates. Hollandite-group Mn-oxides are common in lateritic weathering...Digital elevation map showing landscape of the Zunyi mine and surrounding areas. Data are from International...Blocks during the Triassic (GBGMR, 1987). This region is characterized by a humid subtropical climate...~13.1 Ma (Fig. 7). Weathering profiles in the Zunyi mine and surroundings are dominated by saprolite (Figs...incomplete record of weathering history in the region. This view is confirmed by the presence of Fe- and |  | | Book (edition) | | strong red Stilleite Mottramite Acanthite Hollandite mosaic and polysynthetic Crednerite yes Cinnabar... 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 |  | | Book (edition) | | Tapiolite IV/D.04-00 Cryptomelane IV/D.08-20 Hollandite IV/D.08-60 IV/D.08-70 Coronadite IV/D.09-10 Todorokite...(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) | | University] at 16:44 14 March 2015 FIGURE 10. Hollandite from magnesite a c cumulations, Redencion deposit...c t u r e of cryptomelane, K1-2Mn8O16 ∙ xH2O, hollandite, (Ba, K)1-2 Mn8O16 ∙ xH2O, and r o m a n e c...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) | | 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...consist of pyrolusite, cryptomelane, psilomelane, hollandite and todorokite, whereas others, formed from relatively...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 | | 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 (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 | | 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 | | 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 |  | | Book (volume) | | 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...well as Malaya and 8ol'shaya Yukhta, centrat Aldan region, Eastern Siberia, Russia. Associated in the heavy...Mn sphalerites from the Pai-Khoi Novaya Zemelya province given in [96]. For a ZnS-MnS-CdS composition diagram |  | | Book | | В у в t r ё m А.М. Тhе crystal structure of hollandite, the related manganeвe oxiue mineralв, and 6...308. 177. М i u r а Н. Тhе crystal structure of hollandite // Ыiner. J. 1986. Vol. 13, N .J. Р. 119-129...trois disements d 1 Af'rique de L'Quest; Mokta, Tambao, Ыsuta// Miпer. deposita. 1978. Vol. 13, N 3. Р...displacements in hollandites : structure refinemants of hollandite, cryptomelana and priderite // Acta crystallogr...Todorokite - а new manganese mineral from Todoroki mine, Hokkaido (Japan) // J. Fac. Sci. Hokkaido Univ |
|
Tambao Mine, Oudalan Province, Sahel Region, Burkina Faso