 | | 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...16:00 Windhoek-Karibib 1.6 16:00 - 17:00 Capra Hill Marble Quarry 1.8 Overnight: Karibib 3 4 7 7 7 8 9...Overnight: Karibib- Navachab Gold Mine Navachab Gold Mine Navachab Gold Mine - Karibib Lunch in Karibib Karibib |  | | Journal (article/letter/editorial) | | and Madagascar and within the Damara sequence in Namibia and morcovcr. within the Narnnqualand metamorphic...h a r m Pan-African Anihlvgonite-montehrasitc Pollucite Xcnotinic Columbite-tantalite Equatorial central...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 |  | | 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 |  | | 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...2.2.3.7 Pistelwitz pegmatites 2.2.4 Sandamap - Erongo pegmatite belt 2.2.4.1 Gossow pegmatites 2.2.4...4.8 Davib South 2.2.4.9 Brabant (van der Made, Erongo Schlucht) pegmatite 2.2.4.10 Okawayo pegmatites |  | | 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 |  | Ashworth, L., Kinnaird, J.A., Nex, P.A.M., Harris, C., Müller, A.B. (2020) Origin of rare-element-mineralized Damara Belt pegmatites: A geochemical and light stable isotope study. Lithos, 372. 105655pp. doi:10.1016/j.lithos.2020.105655 | Journal (article/letter/editorial) | | leucogranites (SLGs) of the Jo ur Damara Belt, Namibia, although coeval, are variably mineralized and...1979; Kontak and Kyser 2009). The Damara Belt of Namibia provides an ideal na setting in which to study...Geology The northeast-trending Damara Belt in Namibia forms part of the Neoproterozoic Damara Orogen...and south-trending Gariep Belts in Swakopmund, Namibia, which together record successive phases of rifting...Group, which is overlain by the carbonates of the Karibib Group, and a thick succession of turbiditic greywackes |  | Vignola, Pietro, Hatert, Frédéric, Roda-Robles, Encarnación, Simmons, William B., Francis, Carl A. (2014) PEGMATITIC PHOSPHATE: A TRIBUTE TO FRANÇOIS FONTAN, ANDRÉ-MATHIEU FRANSOLET, AND PAUL KELLER. The Canadian Mineralogist, 52 (2) 121-128 doi:10.3749/canmin.52.2.121 | Journal (article/letter/editorial) | | associations of the pegmatites of the Karibib region in Namibia (Keller & von Knorring 1985, Keller &...the Tsumeb mineralization (Otjikoto Region, Namibia) and of Namibia in general (Keller 1974b, 1977a, 1977b...lead oxychloride mineral from the Kombat mine, Namibia (South West Africa). Mineralogical Magazine 54...phosphate minerals from the Tsaobismund pegmatite, Namibia. Fortschritte der Mineralogie 61, 65–66. Fransolet...mineral associations of the Tsaobismund pegmatite, Namibia. Contributions to Mineralogy and Petrology 92, |  | | Book | | WINDHOEK ----------- MP mineral perspectives NAMIBIA This current report has been prepared by the Bureau...provide the latest available data and information on Namibia. Comments, revisions, and additional information... Thispublication hasbeencataloged asfollows: Namibia (Mineral pcrspecri vcs) Bibliography: p. 47-55...of Docs. no.: I 28.37/2: 1. Mineral indusrrics-Namibia. I. Coakley, George J. iI ! I l I I TN19... 45 47 Appendix.--Mineral 56 producers of Namibia•••••••••••••••••••••••••••••••••••••••• ILLUSTRATIONS |  | | Journal (issue) | | west bank of the Connecticut River and east of a region of hills known as the Berkshires. None of the lead...from the center of Northampton. In the Loudville region more than fifty shafts and prospe-:t holes have...the veins. Those collectors who are visiting this region for the first time should not fail to visit the...abandoned talc quarry with pyrite in abundance. The region as a whole is very interesting from a geological...to time from the pegmatites of the Omaruru and Karibib districts and from the Oorlogskloof pegmatite deposits |  | | Journal (article/letter/editorial) | | potassiumrich minerals and also the caesium mineral pollucite (Ahrens, 6); in these minerals Rb+ (radius 1"49/~...Norway. . . . . ... 300 • 106 1.5 0-40 0.0015 5. Karibib, South-West Africa 800 • 106 1'8 0'49 0.004 6....from Ahrens (11). Pollucite.--The m e a n r u b i d i u m c o n t e n t of pollucite a p p e a r s t o...i n some a n a l y s e d s p e c i m e n s of pollucite of k n o w n age are g i v e n b e l o w ( t a...Varutr~sk, Sweden 650 ? • 106 0.37 0.10 0-0007 4. Karibib, South-West Africa 1000 • 106 0-54 0-15 0-0017 |  | | Report (issue) | | the Sludyanka complex in the southern Lake Baikal region of Russia. Six New Species Today, this team has...from the Mikhaylovskoye Mine in the Transbaikal Region of Russia is 4.5 cm tall, and is in the Dave Bunk...Nigeria; Namibia; Nuristan Valley, Afghanistan and the Malkhan district in Russia's Transbaikal region have...Selway et al. (1998a) African Beauty The Erongo Mountains of Namibia produced this 5 cm tall foitite crystal...the Sahatany Valley in Madagascar; Transbaikal region of Russia; Minas Gerais, Brazil; Blizna, Czech |  | | Report (issue) | | nothing more of interest seemed to come out of the region until November 2002, when people from around Mandrosonoro...Madagascar to study some pegmatites in the Betafo region. Observing the exceptional tourmaline rough arriving... Madagascar, it appears to have formed after pollucite was corroded and released a flood of cesium into...pegmatite vugs in Heftetjern near T0rdal in the Oslo region of Norway; in Kazakhstan; and in Mount Antero,...identified as bazzite until 1939. Fibbia in the Gotthard region in the canton of Tessin is a long known locality |  | | Journal (article/letter/editorial) | | 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...of Uis were the most important Ta producers in Namibia and represents one of the world's largest hard |  | | Journal (issue) | | fee-for-digging operation. The abundance of pegmatites in the region have led to other, smaller intermittent elbaite...World-class gem and specimen elbaites were found in Namibia in the Otjua pegmatite. They have all the classic...important elbaite locality nearby comprises the Usakos pegmatites. There was cesium, bismuth, and tantalum/niobium...pegmatite field, yielding interesting minerals like pollucite and diverse colors of elbaite. Elbaite (cut and...you join us for an educational presentation on a region famous for interesting minerals. March 2021 14 |  | | Journal (issue) | | Dal’negorsk. GEOLOGY The geology of the Dal’negorsk region is tectonically complex because of its relationship...unique among the various intrusive rocks of the region. Xenoliths of eclogite and lherzolite suggest a...article are from these eight mines. In the larger region around Dal’negorsk there are additional mines and...Verchniy (Upper) mine was the first mine in the region, and is still in operation. It was initiated as...there in the past. Other mines in the Dal’negorsk region have produced speci mens; most of the mineral |  | 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...Alto-Ligonha Province (Mozambique) 5.4.4. Damara Belt (Namibia) 5.4.5. Older Granites (Nigeria) 5.4.6. Madagascar...and the Tantalite Valley pegmatites (southern Namibia). Large compositional variations through Fe-Mn...Nigeria and some pegmatites in the Damara Belt of Namibia. CGM, AC tapiolite, wodginite and ixiolite accommodate |  | | Journal (issue) | | (samples of these crystals from kimberlites of this region were kindly submitted to the author by Yana Bao...reveal the rubies. Our field crew worked in this region in 1986 and suggested that the geologists use an...as visible aggregates which are of interest fora region-mineralogical collection (crystals, dtuses of crystals...natrolite (!x1), offretite (?x1), phillipsite (!x1), pollucite (?), svetlozerite (+x1), scolecite (x1), stellerite...(rose-yellow) in calcite. Ukratпka, Simferopol region. Afragment З х З ст. М М мЅбА specimen. 11. Svetloхаriге |  | | Catalog/List | | Andarabato, Madagascar 1x2 £3 2x2 £6 Spitzkoppe Namibia Ixl £3.50 San Francisco mine, Poopo, __ Oruro...LEITEITE Unusual thin plate like clear plastic Tsumcb Namibia 1cm £6 5x 10 Zn AsO/4_________ mm £4 LEPIDOCROCITE...SiO______________ PETALITE Pure white massive Karibib,Namibia Li Al Si O_______________ PHARMACOSIDERITE...creamy coloured mass. One of the Tanco Mine.Bemic POLLUCITE Zeolite group Lake.Manitoba, Canada Cs Na Al SiO____________...Southbury, Connecticut U.S.A Sandanab Nord, Usakos, Namibia 1x2 £1.50 1x2 £1.50 1x2 £3 8mm £1.60 71x71 |  | | 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 |  | | Journal (issue) | | by von Knorring and Sahama from northwest ern Namibia, namibite has been identified from a number of...Cumbria GERMANY 2 Am Hechtsberg quarry, Hausach NAMIBIA 10Khorixas UNITED STATES 3Stewart mine, Pala district...hechtsbergite, eulytite and mixite. Khorixas, Namibia Namibite was first described as a new mineral by...Khorixas (formerly Welwitschia) in northwestern Namibia. The monoclinic crystals are platy parallel to...Namibite, a new copper-bismuth-vanadium mineral from Namibia. Schweizerische Mineralogische und Petrographische |  | | Book | | coppercrystals come from many localities like Tsumcb, Namibia and Chessy. France. Crystals up to 140mm (5'A in)...to 15 mm ("/» in) come from Konder in Khabarovsk Region, small crystals, but mainly nuggets, weighing up...aggregates are found in Sri Lanka (Radegara, Galle region). Accumulations in Buckingham and Grenvillc, Quebec...(Diamantina, Minas Gerais), Congo. Angola and Namibia were found in placer deposits. Diamonds of industrial...Bor. Serbia; Bisbee, Arizona. USA and Tsumeb, Namibia. Application: important Cu ore. Djurleite Cu |  | | Book | | coppercrystals co1ne from many localities like Tsumeb, Namibia and Chessy, France. Crystals up to 140mm (5½ in)...15 mm (1 9h2 in) come from Konder in Khabarovsk Region, small crystals, but mainly nuggets, weighing up...aggregates are found in Sri Lanka (Radegara, Galle region). Accumulations in Buckingham and Grenville, Quebec...Bor, Serbia; Bisbee, Arizona, USA and Tsu1neb, Namibia. Application: important Cu ore. Djurleite Cu31S16...Montana; Bisbee, Arizona, USA), also in Tsumeb, Namibia, together with chalcopyrite, pyrite and other minerals |  | | 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...thermally subsiding basins, such as in northern Namibia, South Australia and northwestern Canada. The so-called...problematic fossil Otavia in middle Cryogenian rocks in Namibia as a sponge (Brain et al., 2001, 2003, 2008) and |  | | Book (edition) | | Rhodesia, and S.W. Africa: Sri Lanka, Zimbabwe, and Namibia, respectively. However, although Madagascar is...and pressure conditions in a most clearly seen region may in rise greatly over a period of time....2 4. 7GY 5GY 3. 3.5/8.0 0.9/5.5 2.7/1 2.0 Namibia Enstatite brown green light Epidote Euclase Fluonte...Brazil Brazil Namibia Namibia Sri Lanka Sri Lanka Sri Lanka Sri Lanka Namibia Namibia 1 15 50 16 ...cut round round round round round emerald cut Namibia Colorado emerald green brown 1 round round emerald |  | | Catalog/List | | BAHIANITE water-worn brown nodule. A placer Paramirim Region,Agua 5mm £6 Ian £10 3mm £4 __AI_Sb O OH___________...micro black botryoidal with similar green Tsumeb Namibia lxl £2.50 lx2 £6 2x2 £12 Fe O malachite. Also some...LEITEITE Unusual thin plate like clear plastic Tsumeb Namibia 5 x l0 _ . ?nAs0/4 ·- -···-·- - --- ·-- - --·--...- ------ ------- ··· lx2£4 2x2 £8 2x3 £12 334 POLLUCITE Pure creamy coloured mass. One of the Tanco Mine...mass Sandanab Nord, Usakos, lxl £3.50 lx2 £7 2x2 £10 2x3 £17 Mn Fe PO/4 Namibia ------ --331 PYROCHLORE |
|
Usakos, Karibib Constituency, Erongo Region, Namibia