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| Springer-Verlag 1992 Lead isotopic signatures at the Klein Aub Mine, NamibiaImplications for mineralisation models...stratigraphic levels in the vicinity of the Klein Aub Mine, Namibia, with the aim of investigating possible...Doornpoort Formation is a source of the Cu in the Klein Aub deposits. Isotopic studies in general and Pb...sediment-hosted Cu-sulphide ore bodies at the Klein Aub Mine, Namibia, Borg (1988), Borg and Maiden (1987 and...Because the Klein Aub Mine is a base metal deposit and since the mineralisation at Klein Aub lends itself |
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| OcronER2011 The Kalahari Copperbelt in Central Namibia: Controls on Copper Mineralization Kenneth J. Ma/dent...central Namibia lo northern Botswana (Figure I; Borg, 1988; Borg and Moiden, 1989). In centml Namibia, copper...than 60 km of sl1ike of the Kngas Member of the Klein Aub Fo1mation. The strata-bound nature of copper occurrences...Subsequent research al the (presently inactive) Klein Aub Mine and elsewherc in the Namibian part of the belt...(e.g., the relation lo a late reverse faull al Klein Aub) ond detailed textural feotures (e.g., copper |
 | Maiden, K.J., Innes, A.H., King, M.J., Master, S., Pettitt, I. (1984) Regional controls on the localisation of stratabound copper deposits: Proterozoic examples from southern Africa and south Australia. Precambrian Research, 25 (1) 99-118 doi:10.1016/0301-9268(84)90026-3 | Journal (article/letter/editorial) |
| Johannesburg (South Africa) 2 Klein Aub Copper Mine, Klein Aub (SWA/Namibia) 3 Formerly M.T.D. (Mangula)...copper deposits. The areas studied are: (1) Klein Aub in SWA/Namibia, where deposits are hosted by dark argilites...instances, but are not generally controlling factors. Klein Aub, Alaska, and Mhangura occur near basin margins...mineralisation varies from region to region, and may even vary within the one region; it is not uncommon for...GEOLOGICAL SETTING OF SELECTED DEPOSITS Klein Aub, SWA/Namibia Klein Aub mine is at the south-western extremity |
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| 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 |
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| Damara-Geosynklinale abgelagert haben. Sie bestehen aus den Klein Aub-, Witvlei-, Ghanzi- und Tsumis-Formationen, die...Kalkschiefer, Kalkstein und Schieferton, kommt in den Klein Aub- und Witvlei-Formationen sowie in den Unter-Ghanzi-Formationen...These unmetamorphosed strata are composed of the Klein Aub, Witvlei, Ghanzi and Tsumis Formations which are...shale, limestone and argillite occurs within the Klein Aub, Witvlei and Lower Ghanzi Formations. The mineralized...non m~tamorphis~es se composent des Formations Klein Aub, Witvlei, Ghanzi et Tsumis, qui sont regard~es |
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| Mesoproterozoic event within the Rehoboth Basement Inlier of Namibia: review and new aspects of stratigraphy...and H. Garoeb Geological Survey of Namibia, PO 13297, Windhoek, Namibia e-mail: tbecker@mme.gov.na; hgaroeb@mme...Mesoproterozoic domain of the Rehoboth Basement Inlier (RBI) in central Namibia is composed of sedimentary...sandstones deposited in grabens. An intra- or backarc region of an active continental margin is suggested as...grade in the south. Introduction In southern Namibia, a group of elongate fault-bounded sedimentary |
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| Along the Margin of the Kalahari Craton in Swa/Namibia and Botswana G. Borg and K. J. Maiden Geological...along the margin of the Kalahari Craton in SWA[Namibia and Botswana G. Borg & K. J. Maiden S U M M A R...regional metamorphism which reached temperatures up to 350°C. Massive domains were metamorphosed to oligocl...o n m e n t . These are the basins of K l e i n Aub, D o r d a b i s / Witvlei and Lake N ' G a m i (Fig...NamaquaNatal. Middle Proterozoic basins (black): Klein Aub (1); Dordabis/Witvlei (2) and Lake N'Gami (3) |
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| 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...••••..••••••.•.••••.••• Rights of landowners and mine owners•••••••••••••••••••••••••••••••••••••• Special |
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| berg Organ Pipes / Twyfelfontein 7 AiAiba / farm Anibib 136 8 Grosse Spitzkoppe, Erongo 9 ...Mountainland The Central Northern to Northwest Region including Damaraland The Central Namib Desertand...Area West and South of Rehoboth The Central and South-CentralDeposits Onganja Mine and Surrounding Copper...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 |
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| Consulting Geologist, PO Box 11222, Windhoek, Namibia e-mail: roymm36@mweb.com.na © 2012 December Geological...and syntectonic metasediments in northwestern Namibia and in the Namaquan terranes are mid to late Mesoproterozoic...about ~1.37 Ga in northwestern Namibia, to ~1.24 Ga(?) in the region of the central Damara Orogen, <1...the crust accompanied collision in northwestern Namibia. Syntectonic granite magmatism was extensive and...intermittent magmatism and sedimentation continued in the Rehoboth and Konkiep Subprovinces and the Kaaien, Bushmanland |
 | PIESTRZYŃSKI, A., WENDORFF, M., LETSHOLO, M., MACKAY, W. (2015) PLATINUM-GROUP MINERALS IN THE NEOPROTEROZOIC STRATABOUND COPPER-SILVER MINERALISATION, THE KALAHARI COPPERBELT, NORTHWESTERN BOTSWANA. South African Journal of Geology, 118 (3) 275-284 doi:10.2113/gssajg.118.3.275 | Journal (article/letter/editorial) |
| Introduction The Kalahari Copperbelt of Namibia and Botswana is a broad region with copper-silver deposits hosted...past work (in order of decreasing abundance): chalcocite, bornite, chalcopyrite, pyrite, sphalerite and...mineralisation Major ore minerals identified include: chalcocite, digenite, bornite, covellite, chalcopyrite,...within chalcocite (p1). Darker zone with points 4 and 5 is a micro-fractured part of chalcocite crystal...and silver sulphides Copper sulphides, namely chalcocite, digenite, bornite, chalcopyrite and covellite |
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| not coincide with the Google-Earth images of the mine workings. The authors wish to thank William F. Cannon...60 90 100 115 120 140 160 230 260 270 300 320 340 350 380 512 530 560 570 630 700 750 800 900 1000 1250...following minerals deposited in zones in this order: chalcocite and other CU S minerals, bornite, chalcopyrite...pyrite, and 2 subordinate galena and sphalerite. Chalcocite forms near the oxidized source of copper; pyrite...exposures may be completely leached. Secondary chalcocite enrichment is not present in many deposits because |
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| systematically present the geology of each country, region and continent on Earth. Each book aims to provide...(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...tectonostratigraphic domains and structures of the region are presented, together with implications for the...Ma) Famatinian and the Devonian-Carboniferous (400–350 Ma) Achalian orogenies, which resulted from the complex |
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| Palaeoproterozoic along its NW side (Magondi–Okwa–Kheis Belt, Rehoboth Subprovince) to form the Proto-Kalahari Craton...Craton; K, Kaapvaal Craton; LIM, Limpopo Belt; R, Rehoboth; Ri, Richtersveld; Z, Zimbabwe Craton. lows that...(Mason, 1998). West of this lineament, in Namibia, the Rehoboth Subprovince forms a geophysically distinct...nature of the underlying crust. In the Rehoboth area of central Namibia, migmatitic orthogneisses, dated at...metamorphosed volcano-sedimentary rocks known as the Rehoboth Group (Becker et al., 2004). The volcanic component |
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| (AKI: Orapa diamondmine; NC 4 Pikwe nickel-copper mine; Cu 6 Ngwako Pan copperoccurrence). lite facies)...andwhichmayalsobepartof the DordabisSupergroupof Namibia. In the northwest, miogeosynclinal Damaralimestones...AND MARENG}VA to the wholebelt. From evidencein Namibia (Anhaeusser and Button,1974) the DamaraSupergroup...evidentlysuffereddeformationand erosionprior to Damarasedi- Namibia acrossBotswanainto Zambia,representing a widespreadcoversequence...belongingeither to the Selkirk acid areas;the GoldenEagle mine (Fig. 3: Au 5) is the volcanicsuccession(Mason, |
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| country· where these rocks are exposed extending from Klein Karas in the north down to Nahas on the Orange River...many and Karroo beds chief of which. 68, Ukamas, Klein Aub 52 and Extending across the river from the main...is a striking hill -of white rock from which the farm derives its name; this proved to Jbe a pegmatite...granulites and altered amygdaioids. These cross the farm in a NW-SE direction. Peculiar limestone veins similar...the old house on Border 155, also where the Border farm road begins to descend into the kloof. . The material |
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| papers and 19 geological maps in Western Australia, Namibia and Greenland. Throughout his career, which has...4.3.9 The Brandberg West Greisen Vein Systems, Namibia . . 4.3.10 The Kalguta Mo-W-Be-Bi Greisen System.... . . . . . . . . . . . . . . 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 . . . . . . . . . . . . . . . . . . . . . . . |
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| 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 |
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| in the evaluation of a deposit and planning of a mine or quarry, completely separate from the exploration...base for mining enterprises is important for the region that includes geological structures of the Greater...The area is the site of Greenland’s only producing mine, due to close end 2013 (http://angelmining.com/)...as fluid pathways and focusing mechanisms for a region wide homogenous gold bearing fluid sourced from...Africa. Despite gold having been worked in the region as far back as 1906 the Kibali greenstone belt |
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| Cover photograph: View of the Aitik open pit copper mine in the very north of Sweden. Mining operations started...potential map of the Neoproterozoic Gariep Belt in Namibia .......................... 480 . . ...........pyritic Zn-Pb-Cu-(Au-Ag) sulphide deposit, Bergslagen region, south-central Sweden . . .......................Ahola Occurrence of gold (electrum) in the Lousal mine, Iberian pyrite belt, Portugal ..................Jingwen Mao & Bernd Lehmann The Omitiomire deposit, Namibia: late tectonic copper emplacement in a Neoproterozoic |
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| label: Aerial view of the Bingham Canyon copper mine, Kennecott Utah Copper, September 2003. Photo courtesy...Tunnels Au-Ag-Zn-Pb deposit, Montana, United States (mine now exhausted). 1971: Recognized control of ore...high sulfidation epithermal Au-Ag deposit, Chile (mine now exhausted). 1971: First formal recognition...which led to discovery of Perkoa Zn-Pb-Ag deposit (mine under construction). 1990: Recommendation of Cerro...porphyry Cu deposit, Chuquicamata district, Chile (mine under construction). 1978: Recognition of concealed |
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| evaluation of the mineral and energy resources of the region. Support for this research program has been provided...and New Jersey, and the San Juan basin, New Mexico 350 By Christine Turner-Peterson Sedimentology of stratabound...PB, Preakness Basalt; and HOB, Holyoke Basalt. Klein (1968) was first to recognize the cyclic nature...Houten cycles also have counterparts in the northern region with the upper Section 1: cycle matching the Westfield...Society of America Guidebook Series, p. 31-56. Klein, G. deY., 1968, Sedimentology of Triassic rocks |
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| 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 |
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| reassembled in the mine. But it was worth it! They have helped Morton Salt’s Painesville, Ohio, mine to step up...with 7 and 10 mm openings. 68 behind the grate Mine planners forecast a comeback for dredges . . . Experts...have a busy future. In the recently-opened Hamilton Mine, there are 100 million tons of coal to be dug out...around the world. 33 pp, 1968. . : $1.00 Sherman Mine—newest and most modern ore beneficiating and agglomerating... 75 Gravity concentration—C. F. & |.’s Sunrise mine adopts heavymedia for lower grade iron ores. 4 pp |
