 | | 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 |  | | 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...2.2.3.6 Kohero West pegmatites 2.2.3.7 Pistelwitz pegmatites 2.2.4 Sandamap - Erongo pegmatite belt 2...Damaran 4 2.2.4.5 Davib pegmatites 2.2 4.6 Davib West pegmatites 2.2.4.7 Pietershill pegmatites 2.2.4 |  | | 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unpublished.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 |  | | Report (issue) | | amethyst, 10.5 cm tall Goboboseb Mountains, Erongo Region, Namibia Scott Rudolph collection, Jeff Scovil photo...Quartz variety amethyst, 3.5 cm tall Kakamunurle Mine, Kar0r, Tamil Nadu, India Bill Larson collection...Bottom: Quartz variety amethyst, 6.7 cm tall Wattika Mine, Murzinka, Sverdlovskaya Oblast', Russia Peter Lyckberg...important amethyst source emerged in the Auvergne region in south-central France, approximately corresponding...lapidary amethyst during that period. The first mine was opened at Valz-sous-Chateauneuf in the middle |  | | Journal (article/letter/editorial) | | Huanuni in Bolivia (Müller et al., 2001), Brandberg West in Namibia (Macey & Harris, 2006), Svetloye, Khinganskoye...pyrrhotite, chalcopyrite, and arsenopyrite, and minor sphalerite, stannite, galena, and sulfosalts. Stage 4 is...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...jarosite, arsenopyrite, pyrite, chalcopyrite, sphalerite and marmatite. Gangue minerals include calcite...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...Pyrrhotite, pyrite, chalcopyrite, cassiterite, sphalerite, scheelite, Pyroxene, garnet, plagioclase, fluorite |  | | Journal (issue) | | Secretary: Colin Brough 1 William Allen Lane LINDFIELD West Sussex RH16 2SA Peter Moore Royal Russell School...some localities in the copper, lead, barite mining area in the hills to the south-east of Pontesbury. The...Westcott copper mine, comprised three separate collecting sites in two short adits and the mine dump. Nearby...Nearby was the Badger Level section of the Huglith mine complex, which was our other location. We were too...a layby in the forestry surrounding the Huglith mine. When we did so later in the day there were some |  | | 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.... . . . . . . . . . . . . . . 6.5.1 Navachab, Namibia. . . . . . . . . . . . . . . . . . . . . . . ....Cu Deposits of the Matchless Amphibolite Belt, Namibia . . . . . . . . . . . . . . . . . . . . . . . 7...Pb-Zn-Cu-Ag-V Deposits of the Otavi Mountain Land, Namibia . . . . . . . . . . . . . . . . . . . . . . . |  | | 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 |  | | Book | | Hakos Mountains in the central Damara Orogen in Namibia; BEHR and HORN (1982) report crystals to 50 meter...Hakos-Bergen im zentralen Teil des Damara Orogens in Namibia beobachtet; sie erreichen einer Mitteilung von...negative Kristalle") aus der Emerald & Hiddenite Mine im Alexander County, North Carolina/USA. Aus der...negative crystals") from the Emerald & Hiddenite Mine, Alexander County, North Carolina/USA. From the...cm. 12 the Swiss Alps have been a classic focus area for quartz inclusions. STALDER et al. (1998) mention |  | | 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 |  | 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...presence of pyrite, arsenopyrite, chalcopyrite, sphalerite, galena, and quartz (Fig. 4c, g–i), with trace...associated with arsenopyrite, chalcopyrite-diseased sphalerite, and chalcopyrite or occasionally enclosed in...chalcopyritediseased sphalerite of the sulfide stage. i Chalcopyrite disease in sphalerite of the sulfide stage |  | | 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 |  | | Journal (article/letter/editorial) | | Experimental Mineralogy, RAS, Chernogolovka, Moscow Region 142432, Russia Chemical Sciences Division, Oak...isotope geothermometers of pyrite–galena and pyrite–sphalerite. A good correlation between the potential energy...sulfur isotope geothermometers: pyrite (FeS2)–sphalerite (ZnS)–galena (PbS). The fractionation factors...and pyrite–sphalerite can be obtained from sulfur b-factors for pyrite, galena and sphalerite, according...to Eq. (1). The latter b-factors (galena and sphalerite) were calculated by Elcombe and Hulston (1975) |  | | 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 |  | 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) | | Yechangping). The main lithostratigraphic units in the region are the Taihua Supergroup (basement), which comprises...the most economically important Mo–W production area (Fig. 2), hosting>2 Mt Mo and 0.6 Mt W reserves...is 2.75 km long, 120–1000 m wide, and covers an area of 0.92 km2. The orebody has a simple, thick, layer-like...typified by molybdenite, pyrrhotite, pyrite, galena, sphalerite, and chalcopyrite, occurring as dominant qua...including molybdenite, pyrrhotite, py rite, and sphalerite from quartz–sulfide veins or veinlets were selected |  | | 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.. |  | | Report (issue) | | category ........ Estimated cumulative and annual mine production of tungsten contained in ore and concentrate—...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...production of ferrotungsten ceased in France and West Germany, because it could be imported more cheaply |  | | 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 |  | | Book | | (mantovani@usp.br) R.McG. Miller PO Box 11222, Windhoek, Namibia (rmmiller@mweb.com.na) A. Misi Centro de Pesquisa...2004 in São Paulo (Brazil), 2005 in Windhoek (Namibia), 2006 in Punta del Este (Uruguay), 2007 in Stellenbosch...and Numees (Frimmel et al., 2002) formations of Namibia and the Jacadigo Group and Puga Formation of the...burial efficiency is supported by an above-average area of passive The Neoproterozoic and Cambrian 7...thermally subsiding basins, such as in northern Namibia, South Australia and northwestern Canada. The so-called |  | | Catalog/List | | Fine Mineral Show at The Denver Marriott West 1717 Denver West Blvd. • Golden, CO 80401 Saturday, September...Ordovician, Asery Level Formation Wolchow River Region, St. Petersburg, Russia As if it were not enough...with a resin to enhance stability, and a hollow area where the whorl would be has been filled in a similar...costatum species and was mined at the Korite Oxbow Mine which has been closed since the early 2000s. The...compression to the shell. There is a raised and irregular area protruding out from the whorl on both surfaces, |  | | Book | | 10523 Pergamon of Canada Ltd., 207 Queen's Quay West, Toronto 1 Pergamon Press (Aust.) Pty. Ltd., 19...possess even higher contents of lead and galena, sphalerite, silver, gold, and palladium. I n places of extreme...extreme differentiation (e.g., at the Frood Mine and at Insizwa) bismuth and tellurium minerals are also... The peculiar bornite occurrences in the Ookiep area, Cape Province, are on one hand typical transition...(1940). 12 T H E ORE MINERALS FIG. 4 80 X Mouat Mine, Stillwater Valley, Montana RAMDOHR From a border |  | | 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 |
|
