 | | Book | | Twyfelfontein 7 AiAiba / farm Anibib 136 8 Grosse Spitzkoppe, Erongo 9 , .,/, loringa tree ...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...s Onganja Mine and Surrounding Copper Deposits The South The Pegmatitesin Central Namibia Luderitz and... Encyclopedia of the Mineralsof Namibia 443 Meteorites in Namibia Bibliography Index Photo credits |  | Melcher, Frank, Graupner, Torsten, GƤbler, Hans-Eike, Sitnikova, Maria, Henjes-Kunst, Friedhelm, OberthĆ¼r, Thomas, Gerdes, Axel, Dewaele, Stijn (2015) Tantalumā(niobiumātin) mineralisation in African pegmatites and rare metal granites: Constraints from TaāNb oxide mineralogy, geochemistry and UāPb 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...1.2. Mineralogy NU 5. Mineral chemistry of columbite-tantalite, tapiolite, wodginite and ixiolite in...Alto-Ligonha Province (Mozambique) 5.4.4. Damara Belt (Namibia) 5.4.5. Older Granites (Nigeria) 5.4.6. Madagascar...processes and sources 7.2. Compositional variation of columbite-tantalite, tapiolite and wodginite-ixiolite 7 |  | | Journal (article/letter/editorial) | | from carbonatites and peralkaline igneous rocks. Columbite-group minerals (CGM) account for the majority...(mainly Rwanda and the DR Congo), around the Kenticha mine (Ethiopia) and in the Alto Ligonha Province (Mozambique)...geochemical features. Compositions of CGM are variable: Ā Fe-rich types predominate in the Man Shield (Sierra...(Zimbabwe) and the Jos Plateau (Nigeria); Ā Mn-rich columbite-tantalite is typical of the Alto Ligonha Province...Valley pegmatites (southern Namibia) and Ā Large compositional variations through Fe-Mn fractionation, followed |  | Graupner, T., Melcher, F., GƤbler, H.-E., Sitnikova, M., BrƤtz, 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) | | 691ā713 Rare earth element geochemistry of columbite-group minerals: LA-ICP-MS data T. GRAUPNER1,*...(REE) concentrations and distribution patterns of columbite-tantalite minerals from Ta-ore provinces worldwide...chondritenormalized REE distribution patterns are defined for columbite-group minerals (CGM) from lithiumcaesium-tantalum...of the melt in a pegmatite body (either Nb ? Ta or Fe ? Mn fractionation lines, or both) results in smaller...forensic tool). K EY WORDS : LCT family pegmatites, columbite-tantalite, REE geochemistry, LA-ICP-MS data. |
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