 | | Journal (article/letter/editorial) | | oxides from pegmatites of the Cape Cross–Uis pegmatite belt, Namibia WARRICK C. FUCHSLOCH*, PAUL A.M. NEX...Abstract The Cape Cross-Uis pegmatite belt, Damara Orogen, north-central Namibia hosts multiple Ta-Nb-...Sn-oxide-bearing pegmatites. Columbite-group minerals, tapiolite, cassiterite and minor ixiolite and wodginite...columbite-group minerals for certain elements. Tapiolite This is a 'preproof' accepted article for Mineralogical...Columbite-group minerals, tapiolite, cassiterite, granitic pegmatite, Damara Orogen, Namibia. Introduction The |  | | Report (issue) | | SURVEY NAMIBIA 1990 Open File Report MRS 12 2 Abstract Niobium-tantalum mineralisation in Namibia occurs...by-products of Tin-mining operations in central Namibia (Uis, Nainais, De Rust). Prominent niobium-tantalum...pegmatites occur in the Tantalite Valley in southern Namibia and have been mined for a long time on a small...Cross - Uis pegmatite belt 2.2.2.1 Strathmore pegmatites 2.2.2.2 Karlowa pegmatites 2.2.2.3 Uis pegmatite...2.2.3.7 Pistelwitz pegmatites 2.2.4 Sandamap - Erongo pegmatite belt 2.2.4.1 Gossow pegmatites 2.2.4 |  | | Journal (article/letter/editorial) | | and Madagascar and within the Damara sequence in Namibia and morcovcr. within the Narnnqualand metamorphic...Mozambique, and Madagascar, and in the Damaran of Namibia (Figure 1). One of the largest, continuous regions...in Africa, is the Namaqualand-Gordonia-Kenhardt region or the Orange River pegmatite belt which is also...pegmatites vary to a great extent from one pegmatite region to another. In some areas lithium silicates are...Zimbabwe. 6. Bikita. Zimbabwe; 7. Karibib area. Namibia; 8. Noumas. Namaqualand. South Alrica: 9. Muianc |  | | Field Trip Notes | | the Geological Society & Geological Survey of Namibia II I -· --· ...... ----·----, Editor: M. Niall...the Geological Society & Geological Survey of Namibia -- - -- .. --- ----• • ·- •• -1 · ~. ,. :...DAMARA OROGEN G.LC. Schneider Geological Survey or Namibia, P O Box 2168, Windhoek 1.0 Day 1 - Monday, 22...Company - Uis 5.4 12:30 - 14:00 Lunch at Uis 5.5 14:00 - 17:00 Uis Tin Mine 5.6 Overnight: Uis 32 32 33...Day 6- Saturday, 27 August 1994 6.1 08:00 - 10:00 Uis - Spitzkoppe 6.2 10:00 - 11:30 African Granite Quarry |  | | Journal (article/letter/editorial) | | current Ta production; other Ta-Nb oxides such as tapiolite, wodginite, ixiolite, rutile and pyrochlore-supergroup...and the Tantalite Valley pegmatites (southern Namibia) and Large compositional variations through Fe-Mn...Nigeria and many pegmatites in the Damara Belt of Namibia. Trace element concentrations in CGM and other...mineral supply chain due-diligence initiatives in the region and at the Ta (and Sn) smelter level, combined...of their production period (Fetherston, 2004). Namibia Some of the pegmatites in the Tantalite Valley |  | Melcher, Frank, Graupner, Torsten, Gäbler, Hans-Eike, Sitnikova, Maria, Henjes-Kunst, Friedhelm, Oberthür, Thomas, Gerdes, Axel, Dewaele, Stijn (2015) Tantalum–(niobium–tin) mineralisation in African pegmatites and rare metal granites: Constraints from Ta–Nb oxide mineralogy, geochemistry and U–Pb geochronology. Ore Geology Reviews, 64. 667-719 doi:10.1016/j.oregeorev.2013.09.003 | Journal (article/letter/editorial) | | Zimbabwe) 4.3.3. Orange River Pegmatite Belt (Namibia, South Africa) AC 4.3.3.1. Radiometric data 4...Radiometric data 4.4.3.2. Mineralogy 4.4.4. Damara Belt (Namibia) 4.4.4.1. Radiometric data 2 ACCEPTED MANUSCRIPT...5. Mineral chemistry of columbite-tantalite, tapiolite, wodginite and ixiolite in African Ta provinces...Alto-Ligonha Province (Mozambique) 5.4.4. Damara Belt (Namibia) 5.4.5. Older Granites (Nigeria) 5.4.6. Madagascar...Compositional variation of columbite-tantalite, tapiolite and wodginite-ixiolite 7.3. Chemical variability |  | Graupner, T., Melcher, F., Gäbler, H.-E., Sitnikova, M., Brätz, H., Bahr, A. (2010) Rare earth element geochemistry of columbite-group minerals: LA-ICP-MS data. Mineralogical Magazine, 74 (4) 691-713 doi:10.1180/minmag.2010.074.4.691 | Journal (article/letter/editorial) | | external calibration. For CGM, wodginite and tapiolite, 55Mn was used as internal standard; for microlite...consideration (e.g. Rongi (Rwanda); Uis (Namibia); Rubikon (Namibia); Hagendorf (Germany)). References...Homestead pegmatite, Tantalite Valley, Namaqualand, Namibia, Neoproterozoic (Kibaran) in age; (2) the Shori...not known as an end member; instead tetragonal tapiolite may be present. The CGM may also represent secondary...C1 (Tecklenberg) pegmatite, SW of Uis, Cape Cross-Uis belt, Namibia a/b/c columbite-(Fe), tantalite-(Fe) |  | | Book | | AiAiba / farm Anibib 136 8 Grosse Spitzkoppe, Erongo 9 , .,/, loringa tree . Khomas Highland...station Garub near Aus Nature conservation, Erongo 16 Welwitschia, Goboboseb Mountains 17 ....Northwest Region including Damaraland The Central Namib Desertand Escarpment The Spitzkoppen The Erongo Mountains...Copper Deposits The South The Pegmatitesin Central Namibia Luderitz and the Diamonds 44 49 241 254 272 275... Encyclopedia of the Mineralsof Namibia 443 Meteorites in Namibia Bibliography Index Photo credits |  | | Journal (article/letter/editorial) | | variations in pegmatites of the cape cross-uis pegmatite belt, namibia Warrick C. Fuchsloch, Paul A.M. Nex...pegmatites of the cape crossuis pegmatite belt, namibia. The address for the corresponding author was captured...VARIATIONS IN PEGMATITES OF THE CAPE CROSS-UIS PEGMATITE BELT, NAMIBIA Warrick C. Fuchslocha*, Paul A.M. Nexb...Granitic pegmatite, Pegmatite classification, Namibia, Damara Orogen, Pegmatite geochemistry, Anatexis...Pan African aged Damara Orogen in Namibia is host to the Cape Cross-Uis pegmatite SC belt, one of several |  | Gonçalves, , Melgarejo, , Alfonso, , Amores, , Paniagua, , Neto, , Morais, , Camprubí, (2019) The Distribution of Rare Metals in the LCT Pegmatites from the Giraúl Field, Angola. Minerals, 9 (10) 580 doi:10.3390/min9100580 | Journal (article/letter/editorial) | | by Ercit et al. [7]. The structural formula of tapiolite and cassiterite were calculated on the basis of...containing phosphates, such as Tsaobismund in Namibia [35], Albera in the French Pyrenees [36], and in...generally it has very small pyrochlore supergroup, tapiolite, stibiocolumbite and stibiotantalite groups. The...also some minerals of the pyrochlore supergroup, tapiolite, stibiocolumbite and stibiotantalite groups. The...minor minor amounts amounts of ofrutile, rutile, tapiolite and andmembers members stibiotantalite and pyrochlore |  | | Book | | REPUBLIC OF NAMIBIA - MINISTRY OF MINES AND ENERGY GEOLOGICAL SURVEY THE MINERAL RESOURCES OF NAMIBIA FIRST...ENERGY Of the several hundred minerals present in Namibia, around sixty have been exploited. some, such as...base metals and industrial minerals have helped Namibia rank amongst the top five mining countries in Africa...terms of production and reserves. In this context, Namibia is a major producer of copper, lead, zinc, cadmium...unpublished. It is evident that mineral exploration in Namibia, as elsewhere. has changed from serendipitous discoveries |  | | Report (issue) | | manganotantalite crystals from Moolyella, Pilbara region. Simpson Collection, Western Australian Museum............................................. 76 Namibia .................................................State and in 1904–05 around Wodgina in the Pilbara region. Over the first 40 years tantalite was mined as...around Dalgaranga, Arthur River, and in the Pilbara region, particularly in the Wodgina area, already have...between the columbite–tantalite group and the tapiolite series. Dimorphic relationships occur where minerals |  | Ballouard, Christophe, Elburg, Marlina A., Tappe, Sebastian, Reinke, Christian, Ueckermann, Henriette, Doggart, Shane (2020) Magmatic-hydrothermal evolution of rare metal pegmatites from the Mesoproterozoic Orange River pegmatite belt (Namaqualand, South Africa) Ore Geology Reviews, 116. 103252 doi:10.1016/j.oregeorev.2019.103252 | Journal (article/letter/editorial) | | geochemical tools for Li-Ta-(Nb)-Be exploration in the region, and possibly in other pegmatite belts worldwide...peak of metamorphism and granitic magmatism in the region (Lambert, 2013; Doggart, 2019). This so-called...(this study), and some pegmatite bodies of the region (Noumas I, Blesberg mine and Kokerboomrand I) are...north-western part of South Africa and southern part of Namibia, represents the western portion of the Mesoproterozoic...Domain, located to the NW of the Kakamas Domain in Namibia (not shown on Fig. 1), is made of granitoids emplaced |  | Möller, P, Dulski, P, Szacki, W, Malow, G, Riedel, E (1988) Substitution of tin in cassiterite by tantalum, niobium, tungsten, iron and manganese. Geochimica et Cosmochimica Acta, 52 (6) 1497-1503 doi:10.1016/0016-7037(88)90220-7 | Journal (article/letter/editorial) | | of cassiterite samples 12 Locality Africa Namibia uis, Chomo district, Zambia Katumba, Rwanda Katanga...present in discrete mineral phases, most probably tapiolite or columbite. The correlation of (Fe + Mn) with...Contribution &l’etude des series columbite-tantalite et tapiolite-mossite. Amer. Sot. Geol. Belg. 88B, 303-392. |  | Melcher, F., Graupner, T., Sitnikova, M., Henjes-Kunst, F., Oberthür, T., Gäbler, H.-E, Bahr, A., Gerdes, A., Brätz, H., Rantitsch, G. (2009) Ein Herkunftsnachweis für Niob-Tantalerze am Beispiel afrikanischer Selten-Element Pegmatite. Mitteilungen der Österreichischen Mineralogischen Gesellschaft, 155. | Journal (article/letter/editorial) | | artisanalem Bergbau in Ruanda, Mosambik, Äthiopien und Namibia detailliert untersucht. Die kontrollierte Probennahme...Ägypten, Äthiopien, Somalia, Madagaskar, Mosambik, Namibia, Nigeria, Simbabwe, Südafrika und in Westafrika...(panafrikanisch, z.B. Mosambik, Äthiopien, Damara Orogen in Namibia) und (5) mesozoisch (jurassische Ringkomplexe des...LCT-Pegmatite Selten-MetallGranite Uis, Rubikon, Helikon 21°15´S 14°50´E Namibia Damara7 kibarisch, spätorogen...Homestead, White City, Lepidolite 28°46´S 18°30´E Namibia Tantalite Valley6 Abu Dabbab, Nuweibi 25°19´N |  | | Catalog/List | | whiteite-Mn, good wardite) 81B10 ANGLESITE, Tsumeb, Namibia, Superb miniature (2 x 3 cm) with one excellent...lot 81B40 SCHNEIDERHOEHNITE, Fe 8As o , Tsumeb, Namibia. Pure black highly lusterous 10 23 pieces (a) (2...crystals (a) .•. $250.00 81B43 SCHAURTEITE, Tsumeb, Namibia. Pure white flakes of Schaurteite (a) (2 x 2 mm)...••• $25.00 81B46 Leiteite, ZnAs20 4 , Tsumeb, Namibia, pure pearly-white flakes of leiteite. (a) (2 x...(2-3 rmn for m/m) $7.50 (b) (4-5 rmn) $10.00 81B72 UIS UEITE, (an asphaltum), Cerro de Pasco, Peru. (a) |  | Yin, Rong, Huang, Xiao-Long, Xu, Yi-Gang, Wang, Ru-Cheng, Wang, He, Yuan, Chao, Ma, Qiang, Sun, Xiao-Ming, Chen, Lin-Li (2020) Mineralogical constraints on the magmatic–hydrothermal evolution of rare-elements deposits in the Bailongshan granitic pegmatites, Xinjiang, NW China. Lithos, 352. 105208 doi:10.1016/j.lithos.2019.105208 | Journal (article/letter/editorial) | | 2013. Mineralised pegmatites of the Damara Belt, Namibia. Fluid inclusion and geochemical Characteristics...metal pegmatites of the Cape Cross-Uis pegmatite belt, ro Namibia: geology, mineralisation, rubidium-strontium...variations in pegmatites of the Cape Cross-Uis pegmatite belt, Namibia. Lithos 296–299, 79–95. Geisler, T.,...REE-Y-Nb mineralisation,Kulyk, Eagle, and Karin Lakes region, Wollaston Domain, northern Saskatchewan, Canada:...Pre-proof crystallization experiments of tantalite-tapiolite. American Mineralogist 103, 1401–1416. van Lichtervelde |  | | Book (edition) | | Schafarzikite Ilmenorutile Powellite Davidite(Ce, La, Y) Tapiolite-(Mn) Sphalerite Wurtzite Groutite Wolframite...Madenköy Mine, Çayeli, Rize Province, Black Sea Region, Turkey (sample: Halbach); XPL If marked in description... Taymyrskiy Autonomous Okrug, Eastern-Siberian Region, Russia (sample: Melcher/Oberthür); PPL D Fine-grained... Karabash, Chelyabinsk Oblast’, Southern Urals Region, Russia Au-Cu alloys, native Copper, native Gold...Potaro River, Kangaruma District, Potaro-Siparuni Region, Guyana Chalcopyrite, native Gold, Hematite, Millerite |  | | Book (edition) | | Plattnerite IV/D.02-60 Ilmenorutile IV/D.03-10 Tapiolite IV/D.04-00 Cryptomelane IV/D.08-20 Hollandite...grey); Schwarzenthal, Krkonose Mts., Hradec Králové Region, Bohemia, Czech Republic [j]; Nic. // Arsenolamprite...reflections); Schwarzenthal, Krkonose Mts., Hradec Králové Region, Bohemia, Czech Republic [j]; Nic. + 82 Arsenolamprite...small covellite grains (blue); Thorn Trees mine, Namibia [c]; Nic. // Massive anhedral mass of chalcocite...malachite (both dark grey); Thorn Trees mine, Namibia [c]; Nic. // With a slightly opened analyser chalcocite |  | Fosso Tchunte, Periclex Martial, Tchameni, Rigobert, André-Mayer, Anne-Sylvie, Dakoure, Hilaire Somtebda, Turlin, François, Poujol, Marc, Nomo, Emmanuel Negue, Saha Fouotsa, Alliance Nicaise, Rouer, Olivier (2018) Evidence for Nb-Ta Occurrences in the Syn-Tectonic Pan-African Mayo Salah Leucogranite (Northern Cameroon): Constraints from Nb-Ta Oxide Mineralogy, Geochemistry and U-Pb LA-ICP-MS Geochronology on Columbite and Monazite. Minerals, 8 (5) 188 doi:10.3390/min8050188 | Journal (article/letter/editorial) | | no Nb-Ta occurrences are described from the Poli region, which is located in the To date, no Nb-Ta occurrences...occurrences are described from the Poli region, which is located in the Northern Cameroon domain (NCD, Figure...description of for thethe Mayo leucogranite the Poli region, Cameroon (Figure 2). It provides evidence firstSalah...firstSalah rare-metal bearing from granite Polithat region, North Cameroon (Figure 2). It provides evidence...Pan-African times. 2. Geological Context The Poli region belongs to the Northern Cameroon domain (NCD) of |  | | Book (edition) | | Sr)Ab[(As, P)O.i ]2(OH)s • H 2 O, trig., blue t o bl uis h- green, Crandallil,e group, 67, 854 ( 1 982) D...Manganotantalite, and wit h Ferrocolumbite, di morph. wit h Tapiolite . g)aAl 2(SiuAl 2 )0 22 ( 0 1 1 b, moo .. Ferrotschcrmakite...225- 1 234 ( 1 953) Mossile Tantalite in part, Tapiolite in part, Mia. 1\fag. 43, 553-554 ( 1 979) = ...1 l 4 2 N a( S r, D a)P O�, hex . , blu e to bl uis h- g reen, 66, 438 ( 1981 ) = Hematite Oligoclase...2.Sn 6 _ 3.0 1 2 , ( x < l ) , tet. , compare Tapiolite, 55, 1 446 ( 197 0) 153 D Starkeyite, D 0 |  | | Journal (volume) | | Tertiary Alkaline Lavas from the Kahuzi- Biega Region, Western Rift, Kivu, Zaire: R. T. Lubala, A. B...nicity ancJ continental evolution in the Barberton region, Transvaal. In Clifford, T. N. and Gass. I.G. (Eds)...place. 2. Geological succession in the Migori region The Migori greenstone belt comprises a metamorphosed...grains. 4. Metamorphism and structure of the Migori region The Nyanzian rocks of the Migori greenstone belt...ages of faulting were identified in the Migori region: 1. The oldest faults are those whose fault planes |  | | Book (edition) | | abbreviated, e.g. canton (Switzerland), vilayet (Turkey), region (Chile), kray and oblast (Russia). The country...by Mobutu, and is now the Katanga administrative region again. The former Kivu province is now divided...United States or of the Upper Silesian historical region in Poland, where the importance of ore-bearing...Kunlun Mts., near Hotan, Xinjiang Uygur Autom. region, China, also at Fengtien, Taiwan. Green at Ospinskoye...Dara-i-Pioz In green needles to 7 mm at Tsumeb, Namibia. massif, Alai Mts.,Tajikistan. AM 62, 173, 1977 |  | | Report (issue) | | gravels of the Rae River in the Coronation Gulf region (J ohn Sinkankas, 1959: Gemstones of North America...1/2 miles above the Lemon Creek bridge, Slocan region (A . H . Lan g , 1 95 2: Geol. Surv . Can., Econ...of radioactivity up to 200 times background in a region of pyroxenes, granites and syenites were found...rich veins in the Nisikkatch and Northwest lakes region, 35 and 40 miles northeast of Uranium City . Analysis...H20 1 . 35, in sol. O. 46, total 99 . 96; II . b l uis h grey, translucent , vit reous anhydrite from property |  | | Report (issue) | | production for the period 2006–10, by country or region and amount.......................................showing selenium concentrations in coal samples, by region of the United States.............................tellurium refinery production in 2013, by country or region..................................................485 p. Sears, Louis, 2011, Jargon alert—Utility: Region Focus (Federal Reserve Bank of Richmond), v. 15...Priorities List; n.a., not applicable] Site name EPA region State EPA site ID number Year mining started |
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