 | | Journal (article/letter/editorial) | | complexes and associated mineralisation in Namibia (Brandberg and Erongo) related to the opening of the South...Mount Weld and Gifford Creek ferrocarbonatite complex in Western Australia, the controversial Bayan Obo...events. The causes and mechanisms of rifting are complex and are beyond the scope of this contribution,...magmatic systems and carbonatites from Namibia (Brandberg, Erongo), South Africa (Kruidfontein, Goudini)...Goudini), Western Australia (Mount Weld and Gifford complex) and China (Bayan Obo and the carbonatites of the |  | | 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...The Central Escarpment- The Nauchas-Gamsberg-Hakos Area West and South of Rehoboth The Central and South-CentralDeposits...Copper Deposits The South The Pegmatitesin Central Namibia Luderitz and the Diamonds 44 49 241 254 272 275 |  | | Journal (article/letter/editorial) | | Gross Spitzkoppe and Klein Spitzkoppe stocks in Namibia: Topaz-bearing A-type granites related to continental...Geological Survey of Namibia, P.O. Box 2168, 1 Aviation Road, Windhoek, Namibia c Rosh Pinab Zinc Corporation...Corporation (Pty) Ltd, P.O. Box 115, Rosh Pinab, Namibia Received 3 February 2006; accepted 4 December...The anorogenic Damaraland intrusive complexes in Namibia belong to the bimodal Paraná–Etendeka Large Igneous...in the Gross Spitzkoppe, Klein Spitzkoppe, Erongo, Brandberg, Messum, Cape Cross, and Paresis complexes |  | | 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unpublished.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 |  | THOMAS, R, WEBSTER, J, RHEDE, D, SEIFERT, W, RICKERS, K, FORSTER, H, HEINRICH, W, DAVIDSON, P (2006) The transition from peraluminous to peralkaline granitic melts: Evidence from melt inclusions and accessory minerals. Lithos, 91 (1) 137-149 doi:10.1016/j.lithos.2006.03.013 | Journal (article/letter/editorial) | | wolframoixiolite [(Fe,Mn,Nb)(Nb,W,Ta)O4] and cassiterite as confirmed by Raman spectroscopy. Each of these...several tens of centimeters) contain prismatic cassiterite (up to 5 cm in length), huebnerite, wolframoixiolite...[Na2B4O5(OH)4⁎8H2O] is occasionally observed between the cassiterite crystals indicating that the greisenization process...minerals (uraninite, monazite, xenotime, zircon, cassiterite) of the peraluminous melt evolution have survived...well as by carbonate/bicarbonate-rich MI in cassiterite, with homogenization temperatures of about 600–650 |  | | Journal (article/letter/editorial) | | related to the pseudobinary MA solvus form a complex assemblage, but all melt inclusions on that solvus... Data are from the Variscan Ehrenfriedersdorf complex, the critical point in TE this case 720°C (Thomas...numerous granites and pegmatites (including both complex and simple pegmatites) world-wide. Cold- NU seal...supercritical, and to some IP extent the near-critical region, have consistent but extreme behavior. This data...and the behavior of some elements in the critical region T The general results collated from several studies |  | Huang, He, Wang, Tao, Zhang, Zhaochong, Li, Chao, Qin, Qie (2018) Highly differentiated fluorine-rich, alkaline granitic magma linked to rare metal mineralization: A case study from the Boziguo’er rare metal granitic pluton in South Tianshan Terrane, Xinjiang, NW China. Ore Geology Reviews, 96. 146-163 doi:10.1016/j.oregeorev.2018.04.021 | Journal (article/letter/editorial) | | Tianshan Terrane (STT). The STT is considered as a complex accretionary orogenic belt, which was formed by...Autonomous Region (Fig. 1b). The major sedimentary-volcanic sequences preserved in the study area include...member, exposed in the northern segment of the study area, is dominated by low grade metamorphic rocks including... which occupies the middle segment of the study area and was intruded by the studied Boziguo’er pluton...southwestern and southeastern segments of the study area. The formation is lithologically composed of a series |  | | Journal (article/letter/editorial) | | Ta/ Nb Ti, ppm Byproducts References Mt Cassiterite (Wodgina), Australia pegmatite 2890–2,830 ...melts. In natural systems, fractionation is more complex due to variations in partitioning coefficients...attribute to either addition of high Nb melt or complex fluid–melt interaction (Černý et al. 1986; Zhang...Mineralization in peralkaline granites from the amis complex, brandberg (namibia): evidence for magmatic pre- Page |  | Wang, Lize, Xu, Cheng, Zhao, Zheng, Song, Wenlei, Kynicky, Jindrich (2015) Petrological and geochemical characteristics of Zhaibei granites in Nanling region, Southeast China: Implications for REE mineralization. Ore Geology Reviews, 64. 569-582 doi:10.1016/j.oregeorev.2014.04.004 | Journal (article/letter/editorial) | | characteristics of Zhaibei granites in Nanling region, Southeast China: Implications for REE mineralization...weathering profile of granitoid rocks from Nanling region of Southeast China is an important REE resource...Note that most Jurassic granitoids in the Nanling region contain no REE minerals and cannot produce REE...crust-derived REE deposits related to granitoids in Nanling region of Southeast China are rare because few granitoids...characteristics of Zhaibei granites in Nanling region, Southeast China: Implications for REE mineralization |  | Su, Hui-Min, Jiang, Shao-Yong, Zhu, Xin-You, Duan, Zhen-Peng, Huang, Xing-Kai, Zou, Tao (2021) Magmatic-hydrothermal processes and controls on rare-metal enrichment of the Baerzhe peralkaline granitic pluton, inner Mongolia, northeastern China. Ore Geology Reviews, 131. 103984pp. doi:10.1016/j.oregeorev.2021.103984 | Journal (article/letter/editorial) | | Abbreviation Ideal Formula Bastnäsite-(Ce) Cassiterite Columbite-(Fe) Fluocerite-(Ce) Gadolinite-(Ce)...et al., 2014). The Baerzhe pluton has an outcrop area of about 0.4 km2 and is divided into the East body...body in some Chinese literature) with an exposed area of 1.25 km2 was later discovered (Fig. 1c). The...oxides (pyrochlore, columbite-(Fe), loparite, cassiterite), phosphates (monazite) and fluoride (fluocerite(Ce))...(fluocerite(Ce)) (Table 1). Most of these minerals show complex textural 3.3. Highly-mineralized granites The |  | Badanina, E.V., Veksler, I.V., Thomas, R., Syritso, L.F., Trumbull, R.B. (2004) Magmatic evolution of Li–F, rare-metal granites: a case study of melt inclusions in the Khangilay complex, Eastern Transbaikalia (Russia) Chemical Geology, 210 (1) 113-133 doi:10.1016/j.chemgeo.2004.06.006 | Journal (article/letter/editorial) | | case study of melt inclusions in the Khangilay complex, Eastern Transbaikalia (Russia) E.V. Badanina a...sequence of Li-, F-rich granites in the Khangilay complex that document the range of melt evolution from...Simplified geologic map of the Khangilay granite complex in eastern Transbaikalia, modified from Syritso...inclusions in granites from the Late Jurassic Khangilay complex in eastern Transbaikalia, Russia (Fig. 1), which...other, less specialized units of the Khangilay complex. Our sampling of quartz-hosted melt inclusions |  | Atencio, D., Andrade, M. B., Christy, A. G., Giere, R., Kartashov, P. M. (2010) The pyrochlore supergroup of minerals: nomenclature. The Canadian Mineralogist, 48 (3) 673-698 doi:10.3749/canmin.48.3.673 | Journal (article/letter/editorial) | | better consistency with current best practice for complex solid-solutions (Hatert & Burke 2008). Like the...different valences. This problem arises in many complex solid-solutions, and our solution for the pyrochlores...from rare-metal pegmatites in South Africa and Namibia. Mineralogical Magazine 53, 571-581. Baldwin, J...lamellae: evidence from rare-metal pegmatite, Karibib, Namibia. Mineralogical Magazine 69, 917-935. Belkasmi,...Non-metamict betafite from Le Carcarelle (Vico volcanic complex, Italy): occurrence and crystal structure. Mineralogical |  | Nie, Xiao, Wang, Zongqi, Chen, Lei, Yin, Jingwu, Xu, Haiming, Fan, Li, Chen, PuPu, Wang, Gang (2020) Mineralogical constraints on Nb–REE mineralization of the Zhujiayuan Nb (−REE) deposit in the North Daba Mountain, South Qinling, China. Geological Journal, 55 (6). 4845-4863 doi:10.1002/gj.3710 | Journal (article/letter/editorial) | | alteration resulted in the formation of the Ilímaussaq complex revealed the mechanisms of REE substitution, these...formed via the alkaline volcanic rocks of the Pingli area in the North Daba Moun- magmatic genesis are still...belong to a NW–SE trending fault the northern region. Several syenites and trachytes are exposed system...studies have shown that sye- magmatic rocks in the region. Among these faults, the Hongchunba- nite and...located within the syenite and trachyte in this area, including the Tianbao 70 (Figure 2b). The Mu |  | | Journal (article/letter/editorial) | | post-magmatic products of the Keivy alkali granite complex, NW Russia Dmitry Zozulya, Ray Macdonald, Bogusław...post-magmatic products of the Keivy alkali granite complex, NW Russia, Ore Geology Reviews (2020), doi: https://doi...post-magmatic products of the Keivy alkali granite complex, NW Russia Dmitry Zozulya a,*, Ray Macdonald b... Zozulya). Abstract The Keivy alkali granite complex, Kola Peninsula, NW Russia, contains numerous Zr-REE-YNb...Zr-REE-YNb occurrences and deposits, formed by a complex sequence of pegmatitic, hydrothermal and metasomatic |  | Zozulya, Dmitry, Lyalina, Lyudmila, Macdonald, Ray, Bagiński, Bogusław, Savchenko, Yevgeny, Jokubauskas, Petras (2019) Britholite Group Minerals from REE-Rich Lithologies of Keivy Alkali Granite—Nepheline Syenite Complex, Kola Peninsula, NW Russia. Minerals, 9 (12) 732 doi:10.3390/min9120732 | Journal (article/letter/editorial) | | Lithologies of Keivy Alkali Granite—Nepheline Syenite Complex, Kola Peninsula, NW Russia Dmitry Zozulya 1, *...Abstract: The Keivy alkali granite-nepheline syenite complex, Kola Peninsula, NW Russia, contains numerous associated...Zr-REE-Y-Nb occurrences and deposits, formed by a complex sequence of magmatic, late-magmatic, and post-magmatic...syenites and carbonatites. In addition, in some complex rare-metal deposits related to felsic and intermediate...chemistry of the environment of formation and reflect complex isomorphic solid solutions among the britholite |  | | Journal (issue) | | for any number of concurrent users across a local area net\,vork. Subscription offices: USA/North America:...chrysoberyl; petalite; pollucite; tantalite; cassiterite; apatite, monazite, and a wide variety of other...Pakistan; Minas Gerais in Brazil; Mozambique and Namibia in Africa; Australia; Madagascar; Italy; Ukraine;...source of some amazing gem material. --.In fact, the region was one of the world's leading sources of gem tourmaline...mentioned under topaz, and placer deposits in the area, have also produced fine orange gem spessartine |  | Bagiński, Bogusław, Zozulya, Dmitry, MacDonald, Ray, Kartashov, Pavel M., Dzierżanowski, Piotr (2016) Low-temperature hydrothermal alteration of a rare-metal rich quartz–epidote metasomatite from the El'ozero deposit, Kola Peninsula, Russia. European Journal of Mineralogy, 28 (4) 789-810 doi:10.1127/ejm/2016/0028-2552 | Journal (article/letter/editorial) | | ed pr Abstract: The Keivy peralkaline granite complex, Kola Peninsula, Russia, is the only Archaean A-type...contains numerous rare-metal occurrences, formed by a complex sequence of magmatic, late magmatic and hydrothermal...were then altered by lower-temperature fluids to complex assemblages containing ferriallanite–allanite-(Ce)...report on the later metasomatic events, where a complex sequence of alteration events produced ferriallanite–allanite...represents a contribution to our understanding of the complex evolution of the El’ozero deposit, which involved |  | Amuda, Abdulgafar Kayode, Yang, Xiaoyong, Deng, Jianghong, Faisal, Mohamed, Cao, Jinya, Bute, Saleh Ibrahim, Girei, Musa Bala, Elatikpo, Safiyanu Muhammad (2021) Petrogenesis of the peralkaline Dutsen Wai and Ropp complexes in the Nigerian younger granites: implications for crucial metal enrichments. International Geology Review, 63 (16) 2057-2081 doi:10.1080/00206814.2020.1821250 | Journal (article/letter/editorial) | | in Kwandonkwaya, Ningi Burra, Dago and Gashere complex (Ike 1985; Sakoma et al. 2000; Magaji et al. 2011)...grani toids with few volcanic rocks and occupies an area of 1600 km long and 200 km wide, extending from...emplacements can be better explained in terms of complex interactions between hotspots and lithospheric...biotite granites which intruded into the basement complex consisting of gneisses and granites of Precambrian-Lower...2. Simplified geological map of (a) Dutsen Wai Complex with the peralkaline plutons at the eastern and |  | de Melo, Gustavo H.C., Monteiro, Lena V.S., Xavier, Roberto P., Moreto, Carolina P.N., Santiago, Erika (2019) Tracing Fluid Sources for the Salobo and Igarapé Bahia Deposits: Implications for the Genesis of the Iron Oxide Copper-Gold Deposits in the Carajás Province, Brazil. Economic Geology, 114 (4) 697-718 doi:10.5382/econgeo.4659 | Journal (article/letter/editorial) | | Province should be better evaluated. In addition, the complex tectonic evolution and relatively sparse bedrock...Domain include gneisses and migmatites of the Xingu Complex, orthogranulites (3002 ± 14 Ma; Pidgeon et al....shear zone, where basement rocks from the Xingu Complex (2950 ± 25–2857 ± 6.7 Ma; U-Pb zircon; Melo et...zone Rio Novo Group Mesoarchean Pium Complex Xingu Complex Mine “Garimpo” Deposit City Fig. 1. Geologic...fergusonite), W (sheelite and wolframite), and Sn (cassiterite). Gold is often found associated with hessite |  | Sheard, E. R., Williams-Jones, A. E., Heiligmann, M., Pederson, C., Trueman, D. L. (2012) Controls on the Concentration of Zirconium, Niobium, and the Rare Earth Elements in the Thor Lake Rare Metal Deposit, Northwest Territories, Canada. Economic Geology, 107 (1) 81-104 doi:10.2113/econgeo.107.1.81 | Journal (article/letter/editorial) | | alkaline to peralkaline Blachford Lake Intrusive Complex. A layered alkaline suite dominated by aegirine...considered to represent the youngest phase of the complex. Much of the rare metal mineralization occurs in...peralkaline granites of the Khadlzan-Buregtey Granitoid Complex of 2.65, 0.58, and 0.62 wt %, respectively. In...these complexes, the zirconium occurs mainly as complex zirconosilicate minerals, such as elpidite (Na2ZrSi6O15...For example, REE and the HFSE in the Tamazeght Complex, Morocco, are hosted in secondary phases such as |  | | Report (issue) | | inclusions (MI) in zircons from the Quottoon Igneous Complex, British Columbia, Canada (from Thomas et al. 2002)...were hypersolvus and crystallized outside of the region of immiscibility in the Ab–An–Or system at 50–100...20 30 50 40 60 70 80 90 100 110 Inclusion Area (mm2) FIG. 1-11. Effect of inclusion size and heating...Homogenization temperature as a function of inclusion area (as viewed through the microscope) for continuous...studied MI in peralkaline granites from the Amis Complex in Namibia. The MI are enriched in Nb and REE and |  | | Book | | possibility for how to relate the EDS spectra from the complex and variable REE mineral phases in an ore to mineral...alkaline rocks is in line with elevated abundances of complex and rare HFSE minerals, which have attracted both...hydrothermal processes frequently leads to narrow and complex intergrowths of fine grained and irregularly sized...the complex [5,12–15], detailed sampling work was carried out in the central part of the complex, which...geologists of the former Soviet Union [13]. The complex covers an area of 30 × 8 km and is mainly built up by |
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