 | | Journal (article/letter/editorial) | | evidence for the origin of the Brandberg West area Sn–W vein deposits, NW Namibia Received: 3 June 2005 /...Springer-Verlag 2006 Abstract The Brandberg West region of NW Namibia is dominated by poly-deformed turbidites...hydrothermal quartz vein-hosted Sn–W mineralization at Brandberg West and numerous nearby smaller deposits. Fluid...suggests that the ore-forming fluids at the Brandberg West mine were CO2-bearing aqueous fluids represented...(quartz–cassiterite), and 444–490°C (quartz–hematite). At Brandberg West, the oxygen isotope ratios of quartz veins |  | | 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 ....The EarlyGermanGeologistsand Entrepreneursin South West Africa The People- Mineralogists,Geologistsand Collectors...Northwest Region including Damaraland The Central Namib Desertand Escarpment The Spitzkoppen The Erongo Mountains...Nauchas-Gamsberg-Hakos Area West and South of Rehoboth The Central and South-CentralDeposits Onganja Mine and Surrounding |  | | 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unpublished.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 |  | | Book | | .,,., ..,,.... w + ..... . ·. .... . - Namibia Zauberwelt edler Steine und Kristalle ooa Dieses...Erdgeschichte 8 Zur Geschichte des Bergbaus in Namibia 17 Der Brandberg und die Mineralfunde in seiner Umgebung...blaue Wunder vom Erongo - Auf Aquamarin-Jagd im Innern Namibias 72 Miarolen im Erongo-Granit- ein Eldorado...110 Auf Turmalinsuche in Namibia Die Demantoide von Tubussis in Zentral-Namibia 112 116 Sodalith von...Zeolithe vom Grootbergpaß in Namibia Kamphaugit-(Y) von der Rössing-Mine 120 124 126 136 Das Gahnit-Vorkommen |  | | Catalog/List | | Fine Mineral Show at The Denver Marriott West 1717 Denver West Blvd. • Golden, CO 80401 (Ukrainian Institute...it collected when the Tsumeb Mine (as well as other mines of the region) were still in production in...1958 to 1973, including: Angola, Basutoland, South-West Africa, Swaziland, South Africa, Rhodesia, and Mozambique...engineering work took him to the Tsumeb Mine in Namibia. This mine is renowned for producing what are arguably...remote and desert-like "Sperrgebiet" area of the southern coast of Namibia, with its fabulous wealth of gem |  | | Journal (article/letter/editorial) | | Huanuni in Bolivia (Müller et al., 2001), Brandberg West in Namibia (Macey & Harris, 2006), Svetloye, Khinganskoye...tourmaline and arsenopyrite, with minor wolframite, scheelite, and pyrite. The Glavnaya quartz zone represents...evidence for the origin of the Brandberg West area Sn–W vein deposits, NW Namibia. Mineral. Deposita., 41,...(1967) The zones of mineralization in the Komsomolsk region. Nauka, Moscow, 117p (in Russian). Ryzhenko, B |  | Zhang, Ya-Hui, Zhou, Jia-Xi, Tan, Shu-Cheng, Li, Hui-Min, Hao, Shuang, Jiang, Yong-Guo, He, Xiao-Hu (2020) Genesis of the oxidized Sn ores in the Gejiu district, Yunnan Province, SW China. Ore Geology Reviews, 121. 103474 doi:10.1016/j.oregeorev.2020.103474 | Journal (article/letter/editorial) | | Sn ore district, one of the largest Sn producing area (300Mt @1 wt% Sn) in the world, is located in the... limonite, goethite, cassiterite, malachite, scheelite, jarosite, arsenopyrite, pyrite, chalcopyrite...Yangtze Block to the north and the Simao Block to the west (Fig. 1a, b). In the Gejiu ore district, the major...Granitic rocks are widely distributed in the Gejiu area and include alkali-feldspar granite, porphyritic...pyrite, chalcopyrite, cassiterite, sphalerite, scheelite, Pyroxene, garnet, plagioclase, fluorite, phlogopite |  | | Book | | papers and 19 geological maps in Western Australia, Namibia and Greenland. Throughout his career, which has...Nova Scotia, Canada . 4.3.9 The Brandberg West Greisen Vein Systems, Namibia . . 4.3.10 The Kalguta Mo-W-Be-Bi... . . . . . . . . . . . . . . . . . . . 4.4.1 Scheelite Dome, an Intrusion-Related Au Deposit, Yukon,... . . . . . . . . . . . . . 6.3.2 King Island Scheelite Deposit . . . . . . . . . . . . . . . . . . ..... . . . . . . . . . . . . . . 6.5.1 Navachab, Namibia. . . . . . . . . . . . . . . . . . . . . . . . |  | | Book (volume) | | Ojuela Mine, Mapimi, Durango, 51 Aegirine Mt Malosa, Zomba Dist., Malawi, 60 Amethyst Brandberg West, Gobbobisberg...Gobbobisberg Mtns., Namibia, 31, 57 Margareta Mine, Amatitlan, Guerrero, Mexico, 20 Apatite (with Tourmaline)...Areas, Pakistan, 15 Golconda Mine, Minas Gerais, Brazil, 32 Panasqueira Mine, Beira Baixa, Portugal, 5,...Valley, Pakistan, 22 Azurite (on Malachite) Milpillas Mine, Sonora, Mexico, 64 Babingtonite Hongxi, Meigu,...Bannisterite Zinc Corp Mine, Broken Hill, NSW, Australia, 69 Benitoite Benitoite Gem Mine, New Idria Dist. |  | | Report (issue) | | category ........ Estimated cumulative and annual mine production of tungsten contained in ore and concentrate—...David Sinclair,2 and Earle B. Amey3 ABSTRACT Scheelite and wolframite are the principal minerals currently...also recovered from placer deposits. Most current mine production of tungsten is from vein/ stockwork,...accounted for over three-fourths of the world’s mine production of tungsten. China alone produced about...the governments of the United States, Canada, and West Germany. It was subsequently joined by South Africa |  | Zhang, Yongwang, Liu, Yan, Zhu, Xinxiang, Raschke, Markus B., Shen, Nengping (2021) Genesis of highly fractionated granite and associated W-Sn-Be mineralization in the Xuebaoding area, Sichuan Province, China. Ore Geology Reviews, 135. 104197pp. doi:10.1016/j.oregeorev.2021.104197 | Journal (article/letter/editorial) | | associated W-Sn-Be mineralization in the Xuebaoding area, Sichuan Province, China Yongwang Zhang a, b, *...euhedral, gem quality, and coarsegrained beryl, scheelite, cassiterite, apatite, fluorite, and muscovite...with granitic in trusions, and dominated by scheelite, disseminated cassiterite, and minor beryl, with...association of W, Sn, and Be mineralization of scheelite, cassiterite, and beryl, with less alteration...poorly zoned and ~ 200 μm in diameter (Fig. 2A–C). Scheelite grains that are about 10 μm in size generally |  | | Journal (article/letter/editorial) | | tectonic alkaline magmatism in Saudi Arabia and West Africa. For the remainder ol the Phanerozoic, folding...carhonatites with oversaturated magmatism such as in Namibia. Angola, and the East African rift system. Despite...Phanerozoic Cameron Niger Nigeria Sudan Saudi Arabia Namibia 1. Introduction Most of the African continent...Phanerozoic in Saudi Arabia (Drysdall et ul. 1986) and West Africa (Liegeois et al, this volume). Recent detailed...1986). Thus the most important feature of this region is the sequential development of granitic rock |  | | Report (issue) | | crystal weighed 455 kilograms. 2m: The Queen Anne mine in Zimbabwe has produced crystals up to 2 meters...surprise. In 1997, Gary and Mary Freeman began to mine the Orchard pit, a then insignificant pegmatite...village of Mandrosonoro, in an undeve loped area of central west Madagascar. I first heard rumors of the...reputation of the area had. For a while, nothing more of interest seemed to come out of the region until November...Madagascar to study some pegmatites in the Betafo region. Observing the exceptional tourmaline rough arriving |  | Legros, Hélène, Richard, Antonin, Tarantola, Alexandre, Kouzmanov, Kalin, Mercadier, Julien, Vennemann, Torsten, Marignac, Christian, Cuney, Michel, Wang, Ru-Cheng, Charles, Nicolas, Bailly, Laurent, Lespinasse, Marc-Yves (2019) Multiple fluids involved in granite-related W-Sn deposits from the world-class Jiangxi province (China) Chemical Geology, 508. 92-115 doi:10.1016/j.chemgeo.2018.11.021 | Journal (article/letter/editorial) | | and references therein) and covered a 14,300 km2 area (Sun et al., 2012). CE Finally, the Yanshanian...activity (mainly granitic and rhyolitic) in the region (Li et al., 2014). Three AC major metallogenic...noting CE that even though only one level in the mine galleries (level -5, ca. 200 m depth) was investigated...the veins appeared to be shallow-dipping in the mine gallery, contrary AC to the cross-section proposed...observations and cross-cutting relationships in the mine galleries (Fig. 3). Hereafter, the mineral nomenclature |  | | Journal (issue) | | Thirty-three, Number Four Articles Jeremejevite from Namibia . . . . . . . . . . . . . . . . . . . . . . . ...Johnston & E. R. Swoboda Sulfur from the Perticara mine area, Pesaro-Urbino, Italy . . . . . . . . . . . ....Pezzotta Famous mineral localities: The Lord Brassy mine, Tasmania . . . . . . . . . . . . . . . . . . .... John Sinkankas (1915–2002) at the Pala Properties Mine Bash, 1977. Van Pelt photo. NOTICE Died, John Sinkankas...County $12 Museum, Himalaya mine $12 (Brazil), Bosch Collection v.10/#2 Jeffrey mine (Quebec), Alpine Rodingites |  | Xue, Liwei, Wang, Gongwen, Tang, Li, Cao, Yi, Du, Jingguo, Du, Yangsong, Luo, Liping, Cheng, Hongtao (2021) Genesis and hydrothermal evolution of the Zhazigou skarn W (Mo) deposit, East Qinling, China: Constraints from fluid inclusions and H–O–S–Pb isotopes. Ore Geology Reviews, 138. 104374pp. doi:10.1016/j.oregeorev.2021.104374 | Journal (article/letter/editorial) | | processes and explore the role of CO2 during scheelite precipitation at the Zhazigou. Four miner alization...coexisting V- and Ltype FIs in quartz and scheelite within quartz–scheelite ± actinolite ± tremolite veins have...conditions. The O and H isotope data from garnet, scheelite, and quartz indicate that the ore-forming fluids...minor contribution from sedimentary sources. Scheelite was precipitated as a result of fluid–rock interactions...relatively acidic conditions to help precipitate scheelite. * Corresponding author at: School of the Earth |  | Wei, Wenfeng, Hu, Ruizhong, Bi, Xianwu, Peng, Jiantang, Su, Wenchao, Song, Shengqiong, Shi, Shaohua (2012) Infrared microthermometric and stable isotopic study of fluid inclusions in wolframite at the Xihuashan tungsten deposit, Jiangxi province, China. Mineralium Deposita, 47 (6) 589-605 doi:10.1007/s00126-011-0377-0 | Journal (article/letter/editorial) | | Qinling-Dabie orogenic belt to the north, is bounded to the west by the Tibetan Plateau. The Cathaysian Block has...and location. In the northern part of the mining area, they dip steeply (75–85°) with an EW strike. However...Misantoni D (2009) A geochemical study of the Sweet Home Mine, Colorado Mineral Belt, USA: hydrothermal fluid...evidence for the origin of the Brandberg West area Sn–W vein deposits, NW Namibia. Miner Depos 41:671–690 Mancano...Large-scale tungsten-tin mineralization in the Nanling region, South China: metallogenic ages and corresponding |  | | Journal (article/letter/editorial) | | normal to 13 veins in many tungsten deposits in the area decrease with increasing depth, and the 14 time...2006). The 63 vein-type tungsten deposits in the region are located near the roof zone of buried alkali-...X-axis is in an orientation normal to the veins. The area covered by the model is 1.2 150 x 1.2 km and is...involved in the deposition of 359 tungsten in the region (cf. Stein and Cathles, 1997). 360 Disseminated...hydrogen and oxygen isotope study of the San Cristobal Mine, Peru; implications of the role of water to rock |  | | Journal (article/letter/editorial) | | previous ideas on what is without doubt a kind of “mine field”, because if a classification is based on...(concentration of deposits of similar nature over an area of about 100 km2) NU Some other important definitions...anomalous concentration of metals Operating/abandoned mine: workings that are operating or on care and maintenance...systems, accretionary sedimentary prisms in the trench area are well developed, whereas they may be absent in...mineral system remains, if I may use the expression, a mine field, as testified by the abundance of books and |  | | Journal (article/letter/editorial) | | pegmatites of the Cape Cross–Uis pegmatite belt, Namibia WARRICK C. FUCHSLOCH*, PAUL A.M. NEX AND JUDITH...Cross-Uis pegmatite belt, Damara Orogen, north-central Namibia hosts multiple Ta-Nb- and Sn-oxide-bearing pegmatites...cassiterite, granitic pegmatite, Damara Orogen, Namibia. Introduction The internal evolution processes...In the Cape Cross-Uis pegmatite belt (CUPB) of Namibia, numerous granitic pegmatite bodies intrude the...overview Several rare-element pegmatite belts in Namibia occur within the Damara Belt which is the northeast-trending |  | | Book | | magmatism of the eastern margin of the Atlantic (Namibia, Angola) or the western African kimberlites do...both parts, one and two. The second part discusses West-African magmatism associated with the early opening...of the processes operating in the mantle beneath West Africa is also illustrated in this second part and...Northeastern Africa .............................. 4.3 West Central Africa .............................. 5...Physical, Petrographic and Chemical Features of South West Ugandan Quaternary Volcanism ... 9.1 Physical.. |  | | Book | | Africa 194 3.5.2. The Damaraland alkaline province, Namibia 198 3.5.3. Carbonatites 199 3.5.4. Kimberlites...metamorphism in the Central Zone ofthe Damara Orogen, Namibia 6.3.2. Anorogenic metamorphism in the eastern Pyrenees...that metals, oxides and silicate dominated in the region between Mercury and the asteroid belt. Details...crystallographic axes will aceeierate in the given region, thereby providing another way of mapping out hot...other of the above cases dominating in a given region. More recently, measurements of crustal Poisson's |  | | Book | | systematically present the geology of each country, region and continent on Earth. Each book aims to provide...require when beginning investigations in a particular area and are encouraged to include as much information...(Gariep Belt) cropping out in the western borders of Namibia and South Africa. They were split up in the Mesozoic...concerning the tectonic and geodynamic evolution of this region during the Precambrian. Major tectonometamorphic...Ediacaran-Ordovician after McWilliams (1981). Equal area projection, reconstruction after Smith and Hallam |  | | Report (issue) | | holdings. Prior to 1978, the development of complete mine property cost evaluations was impeded by still evolving...tool. Systems design work also continued on the mine simulation (MINSIM) program, an economic evaluation...reserves. These include implications that because a mine is operating it is profitable, that reported reserves...prices, which are variable over the life of the mine. Economic evaluation is complicated by the presence...and economic variables on viability of individual mine properties (17-18). Nonproducing deposits Producing |  | | Report (volume) | | pentaborate sheet structure from the Tuzla salt mine, Bosnia and Hercegovina. Am Mineral 79:562-569 Beukes...new hydrous calcium borate, from the Death Valley region, California. Am Mineral 44:911-919 Erd RC, McAllister...new hydrous calcium borate from the Death Valley region, California. Am Mineral 46:560-571 Erd RC, Morgan...(1989) Mineralogy and paragenesis of the Little Three mine pegmatites, Ramona District, San Diego County, California...member of the mica group, from the Little Three mine pegmatite, Ramona District, San Diego County, California |
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