 | | Journal (article/letter/editorial) | | organic carbon from upper Proterozoic successions in Namibia: stratigraphic variation and the effects of diagenesis...organic carbon from upper Proterozoic successions in Namibia: stratigraphic variation and the effects of diagenesis...Proterozoic Damara Supergroup of Namibia, including the Nama, Witvlei, and Gariep groups on the Kalahari...immediately following three separate glacial episodes in Namibia. The correspondence between ice ages and negative...from the upper Proterozoic Damara Supergroup of Namibia. Insofar as carbon isotope signatures have proven |  | | Journal (issue) | | 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...controlled sites lotc in the deformation histmy of the region. The conclusion of the prcscnl review is that economically...~tretches discontinuously for 800 km from central Namibia to northern Botswana (Borg and Maiden, 1989). Copper...sector of the belt, particularly arow1d Klein Aub, Witvlei, and Dorclabis, for many years (see, for example |  | | Journal (article/letter/editorial) | | equivalents in East Greenland, the Witvlei and Nama groups in Namibia and South Africa, and the upper Windermere...interpreted as lacustrine [10]. 2.2 Nama and Witvlei Groups, Namibia and South Africa The stratigraphy, sedimentology...paleontology and age of the Vendian Nama and Witvlei groups in Namibia have been the focus of several recent...information can be found there. In brief, the Witvlei Group and Kuibis and Schwarzrand subgroups of the...of the Witvlei Group [15]. Germs [13] indicated that an unconformity also separates the Witvlei and Nama |  | KAMPUNZU, A. B., AKANYANG, P., MAPEO, R. B. M., MODIE, B. N., WENDORFF, M. (1998) Geochemistry and tectonic significance of the Mesoproterozoic
Kgwebe metavolcanic rocks in northwest Botswana: implications
for the evolution of the Kibaran Namaqua-Natal Belt. Geological Magazine, 135 (5) 669-683 doi:10.1017/s001675689800123x | Journal (article/letter/editorial) | | the Neoproterozoic (Pan-African) Damara belt in Namibia and Ghanzi-Chobe belt in Botswana (Fig. 1). The...southern and central Africa includes the Damaran (Namibia), Ghanzi-Chobe (Botswana), Lufilian Arc (Democratic...Mamuno in the southwest. In Namibia, its correlatives occur in the Witvlei and Klein Aub districts (Fig...Mesoproterozoic metavolcanic rocks in Botswana, Namibia and South Africa, and the distribution of main...sediments can be inferred from studies in the Witvlei area in Namibia. The Damara siliciclastic sequence is the |  | | 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 |  | | Journal (article/letter/editorial) | | centralAfricancopper thenortheastern extension Aub, Namibia,wherean orebodyof 7 Mt at a gradeof 2 beltinZa...subeconomiccratonicbranch,whichis up to 400 km widein Namibia, copperoccurrence with 1.5 to 2 percentCu is locatedat...a width of 180 to 240 km into Botswana,as Witvlei, Namibia (Anhaeusserand Button, 1973; Ruxtonand canbe...southwestern part of the sures of basementrocks in Namibia, but in northwestern Ghanzi-Chobe beltby Lithedand(1982)...Botswana, theonlyrecordisfromtheOkwaValleyat a dis- Namibia(Hegenberger andSeeger, 1980;Killick,1983).This |  | | Report (issue) | | with red beds. Oxidizing fluids produce albitic, hematite rocks depleted in base metals, calcium and potassium...or violet color caused by finely disseminated hematite. Ore Controls Reducing 1ow pH environment such...be an oxidized source rock. This rock must be hematite stable and must contain ferromagnesian minerals...marine volcanics precludes the formation of a hematite-stable environment. Leaching of copper from the...UZBN VNZL YUGO ZIMB ZIRE ZMBA 11 COUNTRY Mexico Namibia Nigeria Norway Peru Pakistan Poland Philippines |  | | Report (volume) | | Otavi carbonate platform and foreslope, northern Namibia: evidence for large base-level and glacioeustatic...HEGENBERGER, W. & FALLICK, A. E. The Witvlei Group of East-Central Namibia 211 FRIMMEL, H. E. The Chameis...Chameis Gate Member, Chameis Group, Marmora Terrane, Namibia 217 FRIMMEL, H. E. The Kaigas and Numees formations...formations, Port Nolloth Group, in South Africa and Namibia 223 FRIMMEL, H. E. The Karoetjes Kop and Bloupoort... Neoproterozoic glacial records in the Yangtze Region, China 357 ZHU, M. & WANG, H. Neoproterozoic |  | Batumike, M.J., Cailteux, J.L.H., Kampunzu, A.B. (2007) Lithostratigraphy, basin development, base metal deposits, and regional correlations of the Neoproterozoic Nguba and Kundelungu rock successions, central African Copperbelt. Gondwana Research, 11 (3) 432-447 doi:10.1016/j.gr.2006.04.012 | Journal (article/letter/editorial) | | increase southward in the Nguba basin. In the southern region, the Kyandamu Formation contains clasts from the...Ubendian belt (2.1–1.8 Ga) is observed in the “Domes region” (Unrug, 1988) and within the Katangan belt (Cahen...western part of the Lufilian Arc (Kolwezi-Tilwezembe region, Fig. 1) as an unsorted grey or greenish grey conglomerate...and may be faceted or striated. In the western region, this formation contains a continuous horizon that... from bottom to top (François, 1973a). In that region, total thickness increases from 25 m in Kakanda |  | | Report (chapter) | | dating. Its age is estimated by correlation to Namibia and China, where igneous material suggests its...India Witvlei-Naukluft, Namibia Gariep, Namibia* Zambia W Congo N Namibia N Namibia N Namibia Taoudenni...Adelaide Kimberleys Witvlei-Naukluft Gariep Zambia W Congo N Namibia N Namibia N Namibia Mirbat, Arabia Oman...base of the presumed Sturtian glacial sequence in Namibia (Hoffman 2005, table 1), is regarded by some as...interval give a mean pole that keeps the region in the equatorial region. Poles from a later Neoproterozoic |  | | Journal (article/letter/editorial) | | ts hostedby theRevett Formationwere found in a region sincecalled the "coppersulfidebelt of the Belt...GN-CAL PY-CAL c• z • ,,,,•: (.-)t-n' _ - O N E hematite I .............. magnetite •-, • ilmenite...rocksof the outer portion of the galena-calcitezone hematite(Harrison,1974;Hayes,1983,andin prep.). andtheinnerportionof...bornitc,digenite,chalcocite,native silver,magnetite,hematite,ohiorite,andankeriteoccur in closesuccession acrossa...pseudomorphicafter detrital ilmeno-magnetiteand ilmeno-hematite grainsispresentin everyzoneonMt. calcite and |  | Álvaro, J. Javier, Macouin, Mélina, Bauluz, Blanca, Clausen, Sébastien, Ader, Magali (2007) The Ediacaran sedimentary architecture and carbonate productivity in the Atar cliffs, Adrar, Mauritania: Palaeoenvironments, chemostratigraphy and diagenesis. Precambrian Research, 153 (3) 236-261 doi:10.1016/j.precamres.2006.11.010 | Journal (article/letter/editorial) | | Taoudeni Basin, situated to the SW of the Jbéliat region (the standard area where numerous lithostratigraphic...subdivisions recently used in the mapping of the region (Waters and Schofield, 2004; Lahondère et al....numerous hills, plateaux and jbels of the Adrar region. The uppermost part of the group in the Adrar area...glaciation, correlatable with the Ghaub glaciation of Namibia (Hoffman et al., 2004), the Nantuo glaciation of...boundaries and tops are commonly lined with crusts of hematite and ferroan dolomite, up to 8 cm thick. The channelfill |  | | Journal (article/letter/editorial) | | the predominantly rudaceous part of the Oamites hematite occurring in alteredfeldspars andas thin Formation...have been recordedin the per mineralization of Witvlei, South West Africa, Hanging wall reef, where galenais...mineragraphic study of the copper-bearingformations in the Witvlei area, South West Africa: Geol. Soc. stratigraphically |  | | Report (chapter) | | southern margin of the Congo Craton, northern Namibia: facies, palaeogeography and hydrocarbon perspective...Ghaub Formation diamictite interval in northern Namibia and the major environmental change in the aftermath...peri-Gondwanan areas apart from the formerly glaciated region of northern Africa. In the Palaeozoic post-glacial...the late Cryogenian Ghaub glaciation of northern Namibia, a classical field location for research on this...Kennedy (2007). Geological overview In northern Namibia continental rifting occurred in the Late Neoproterozoic |  | | 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 |  | | Journal (article/letter/editorial) | | The younger Cryogenian glaciation in northern Namibia presents an excellent opportunity to investigate...Area Amazon Angola Arabia Alto Paraguay Nothern Namibia Mirbat Oman Mtns Adelaide Central Australia Kimberleys...Oslo Varanger Peninsula West Congo Zambia Gariep Witvlei-Naukluft Alaska British Columbia Blue Ridge California...marine carbonates in Australia, Canada, southern Namibia, Morocco, Oman, Svalbard and USA (grey dots) and...and the Otavi Group (black dots) in northern Namibia (see Halverson et al., 2005; Halverson, in press |  | | Book | | 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... They emphasize the enormous potential of this region in terms of base (Cu, Pb, Zn, Co, Ni), precious |  | Wood, R.A., Poulton, S.W., Prave, A.R., Hoffmann, K.-H., Clarkson, M.O., Guilbaud, R., Lyne, J.W., Tostevin, R., Bowyer, F., Penny, A.M., Curtis, A., Kasemann, S.A. (2015) Dynamic redox conditions control late Ediacaran metazoan ecosystems in the Nama Group, Namibia. Precambrian Research, 261. 252-271 doi:10.1016/j.precamres.2015.02.004 | Journal (article/letter/editorial) | | Ediacaran metazoan ecosystems in the Nama Group, Namibia Author: R.A. Wood S.W. Poulton A.R. Prave K.-H...Ediacaran metazoan ecosystems in the Nama Group, Namibia, Precambrian Research (2015), http://dx.doi.org/10...Ediacaran metazoan ecosystems in the Nama Group, Namibia ip t Wood, R. A.1*, Poulton, S.W.2, Prave, A...UK 4 Geological Survey of Namibia, Private Bag 13297, Windhoek, Namibia 5 Department of Earth Sciences...Zaris and Witputs Sub-Basins of the Nama Group, Namibia. New carbon isotope data capture the final stages |  | Hayes, T. S., Landis, G. P., Whelan, J. F., Rye, R. O., Moscati, R. J. (2012) The Spar Lake Strata-Bound Cu-Ag Deposit Formed Across a Mixing Zone Between Trapped Natural Gas and Metals-Bearing Brine. Economic Geology, 107 (6) 1223-1249 doi:10.2113/econgeo.107.6.1223 | Journal (article/letter/editorial) | | lavender and lavender-gray by recrystallization to hematite of earlier ferric oxide coatings on detrital grains...grains and by formation of magnetite from hematite (Harrison, 1974; Nadoll et al., 2012). Revett-hosted...magnetite in some deposits), then by chalcocite (plus hematite in all deposits known to us). Cu sulfides formed...metals-transporting solution in equilibrium with hematite reacted with preexisiting pyrite and certain other...chalcocite + chlorite + K-feldspar + albite + hematite + ankerite (chalcocite-chlorite zone), through |  | | Journal (article/letter/editorial) | | somewhat analogous to the modern 114 western Pacific region, dominantly composed of island arcs in the absence...synthesized by Zhao (2004) for the Western Pacific region shows 233 stagnant slabs floating in the mantle...detritus will get stacked in the middle mantle region due 250 to buoyancy, generating a ‘second continent’...Atlantic 457 would explain the origin of LIP in the region (Karoo, Ferrar, Tasman and Chon Aike; 458 Gondwana...underlying superplume in the South Atlantic 462 region, forming the Weddell triple junction. 463 The |  | | 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 | | overlies these older successions throughout the region, though not at Ranger One. The Number Three Orebody...kilometers north of the Hornby Bay sandstone basin in a region underlain by rocks younger than, and overlying...Exploration geochemistry evaluation study in a region of continuous permafrost, Northwest Territories...within the zone of continuous permafrost: Coppermine Region, Northwest Territories. Geol. Surv. Can., Pap....to 4100 Mg/1. These data confirm the use in this region of NMg as a hydrogeochemical indicator of uranium |  | Aleinikoff, J. N., Hayes, T. S., Evans, K. V., Mazdab, F. K., Pillers, R. M., Fanning, C. M. (2012) SHRIMP U-Pb Ages of Xenotime and Monazite from the Spar Lake Red Bed-Associated Cu-Ag Deposit, Western Montana: Implications for Ore Genesis. Economic Geology, 107 (6) 1251-1274 doi:10.2113/econgeo.107.6.1251 | Journal (article/letter/editorial) | | pyrite-calcite), but not in more distant zones across the region. Thirty-two in situ SHRIMP U-Pb analyses on xenotime...2010; Nesheim et al., 2012). 6. Throughout the region, there may have been thermal or fluid fluxes related...to lavender and lavender-gray by formation of hematite from preexisting ferric oxide coatings on detrital...detrital grains and by formation of magnetite from hematite (Harrison, 1974; Nadoll et al., 2012). Both west...central chalcocite + chlorite + barite + ankerite + hematite-enriched rocks (chalcocite-chlorite zone), through |  | | Book | | 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 . . . . . . . . . . . . . . . . . . . . . . . |  | | Report (volume) | | Neoproterozoic in North Africa, India, Spain, Namibia and South America. Many people helped to make the...southern margin of the Congo Craton, northern Namibia: facies, palaeogeography and hydrocarbon perspective...in Mauritania, Algeria and Mali; the Anti-Atlas region of Morocco and the Cyrenaica, Kufra and Murzuk...complexities of the Lower Palaeozoic sequences in the region and, in particular, to understand the Upper Ordovician...main targets of hydrocarbon exploration across the region. With time, and with an appropriate level of focus |
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