 | | Journal (article/letter/editorial) | | Pan-African, Neoproterozoic Rosh Pinah Zn-Pb deposit, southwestern Namibia D.J. Alchin Kumba Resources...Grahamstown, South Africa e-mail: J.Moore@ru.ac.za “Rosh Pinah” – The stone which the builders refused has become...genesis of the Neoproterozoic Rosh Pinah Zn-Pb deposit in southwestern Namibia. During continental rifting...rifting at ~740 Ma, an intracratonic rift (Rosh Pinah Graben) became detached from the main Gariep depository...fluid populations – a pre-orogenic, riftrelated Rosh Pinah ore-forming fluid dominated by MgCl2- and CaCl2-rich |  | | Journal (article/letter/editorial) | | volcano-sedimentary Koivib Mountains deposits of Namibia C. Pilote a , P.L. Corcoran a,∗ , W.U. Mueller...succession, which forms part of the Rosh Pinah Formation of southwest Namibia. Detailed sedimentary facies analysis...shale, (7) thin- to medium-bedded sandstone, (8) thick-bedded sandstone, and (9) sedimentary breccia facies...located along the southwest coast of Africa in Namibia (Fig. 1), represents a strategic area for studying...assemblage within this zone forms part of the Rosh Pinah Formation, for which reviews of the lithostratigraphy |  | | Journal (article/letter/editorial) | | 19 Stratigraphic setting of the metalliferous Rosh Pinah Formation and the Spitzkop and Koivib Suites...Suites in the Pan-African Gariep Belt, southwestern Namibia D.J. Alchin Kumba Resources, P O Box 1224, Postmasburg...proposed for the Neoproterozoic Rosh Pinah Formation in southwestern Namibia. The formation forms part of...major economic base metal deposits at Rosh Pinah and Skorpion. It is characterised by the presence of...failed intracratonic rift graben in the east (Rosh Pinah Graben) that was separated by a basement horst |  | | Journal (article/letter/editorial) | | carbonate beds in the Neoproterozoic Rosh Pinah Formation, Namibia: Implications on depositional setting...altered carbonate rocks are an important host to Rosh Pinah-type base metal sulphide mineralisation in the...the PanAfrican Gariep Belt in southern Namibia. In order to elucidate the genesis and environment of formation...other being in a more distal position at the Rosh Pinah mine, revealed a primary sedimentary origin for...for the Rosh Pinah Formation. Introduction Two major base metal ore deposits, the Rosh Pinah ZnPb sulphide |  | | Journal (article/letter/editorial) | | rifting phase. While the eastern rift graben (Rosh Pinah Graben) failed, a half graben to the west evolved...growth fault along the eastern boundary of the Rosh Pinah Graben. These rocks are interpreted as representing...high (Aurus horst) that separated the failed Rosh Pinah Graben in the east from the proper Gariep Basin...9%0. Bimodal, predominantly felsic, volcanism (Rosh Pinah Formation), dated by the above mentioned single...Ocean Chameis Sub-terrane (oceanic island) Oranjemund Sub-terrane (sub-basin) IW I Port Nolloth Zone |  | | Report (chapter) | | formations, Port Nolloth Group, in South Africa and Namibia HARTWIG E. FRIMMEL1,2 1 Department of Geological...Pan-African Gariep Belt (Port Nolloth Zone) in southern Namibia and western South Africa. It contains two glaciogenic...Formations are exposed at several sites in southernmost Namibia and in the adjoining part of South Africa (Fig...from Lüderitz in Namibia, across the Orange River to the western Richtersveld region of the Northern Cape...NW –SE trending thrust fault system, with the Rosh Pinah Fault being a good example. Along those faults |  | | Journal (article/letter/editorial) | | sediment-hosted Rosh Pinah Zn-Pb-Ag deposit in the Pan African Gariep Belt, southwestern Namibia Abraham Rozendaal...ABSTRACT Limitations on the life-of-mine of the sediment-hosted Rosh Pinah deposit urged exploration for extensions...from detailed lithogeochemical traverses on the C Mine and Eastern Orefield, coupled with mineralogical...of a large (n > 400) multielement data set of the mine area, showed that the extent of wall rock alteration...Indices devised for the various lithologies of the Rosh Pinah deposit, such as the Barium Alteration Index |  | Hitzman, M. W., Reynolds, N. A., Sangster, D. F., Allen, C. R., Carman, C. E. (2003) Classification, Genesis, and Exploration Guides for Nonsulfide Zinc Deposits. Economic Geology, 98 (4) 685-714 doi:10.2113/gsecongeo.98.4.685 | Journal (article/letter/editorial) | | Star Zn, Zambia; 28 = Skorpion, Namibia; 29 = Berg Aukas and Abendab, Namibia; 30 = Padaeng (Mae Sot)... In extremely arid climates, such as those in Namibia (Tsumeb deposit: Lombaard et al., 1986; Hughes...grades that can be cited Namibia Poland Silesian Crakow district Skorpion Spain Reocin Kazakhstan...dolostone by smithsonite with minor hematite. Tucson mine, Leadville district, Colorado, United States. b...Massive smithsonite replacing limestone. Wolftone mine, Colorado, United States. c. Coarsely crystalline |  | | Journal (article/letter/editorial) | | mineralization in the Otavi Mountain Land, Northern Namibia—a review and regional interpretation A.F. Kamona...Günzel b a b University of Namibia, Private Bag 13301, Windhoek, Namibia Ongopolo Mining Ltd., Main Street...Street, P.O. Box 40, Tsumeb, Namibia Received 16 May 2004; accepted 10 April 2006 Available online 4...Neoproterozoic Damara mobile belt in northern Namibia (Fig. 1). The northern part of the metallogenic...of the Tsumeb Subgroup is the same in northern Namibia (Table 1). However, the Mulden Group in the OML |  | | Journal (article/letter/editorial) | | rocks of the c. 750 Ma Rosh Pinah Formation in the Gariep Belt in southwestern Namibia, a post-glacial carbonate...carbonates from the Otavi platform in northern Namibia, which include both an older post-glacial carbonate...Cryogenian carbonates in the Gariep Belt The Rosh Pinah Formation forms part of the Hilda Subgroup in...Gariep Belt, the Port Nolloth Zone, in southwestern Namibia and western South Africa (Fig. 3). This part of...fall during which an eastern failed graben, the Rosh Pinah Graben, became separated from a western half-graben |  | | Book | | Mountainland The Central Northern to Northwest Region including Damaraland The Central Namib Desertand...s Onganja Mine and Surrounding Copper Deposits The South The Pegmatitesin Central Namibia Luderitz and... Encyclopedia of the Mineralsof Namibia 443 Meteorites in Namibia Bibliography Index Photo credits...__ Republic of Namibia The President State House W°Ntdhoek FOREWORD Namibia is endowed with an...from near and far. Fine mineral specimen from Namibia are displayed in all the famous natural science |  | | Book | | systematically present the geology of each country, region and continent on Earth. Each book aims to provide...counterpart of the Oranjemund Group (Gariep Belt) cropping out in the western borders of Namibia and South Africa...concerning the tectonic and geodynamic evolution of this region during the Precambrian. Major tectonometamorphic...Rondane intrusives; TS—Tumblagooda sandstone; SS—Stairway sandstone. See McWilliams (1981) for further...tectonostratigraphic domains and structures of the region are presented, together with implications for the |  | Balassone, Giuseppina, Scognamiglio, Valentina, Nieto, Fernando, Mondillo, Nicola, Boni, Maria, Cappelletti, Piergiulio, Arfè, Giuseppe (2020) The nature of Zn-phyllosilicates in the nonsulfide Mina Grande and Cristal zinc deposits (Bongará District, Northern Peru): The TEM-HRTEM and AEM perspective. American Mineralogist, 105 (8). 1223-1241 doi:10.2138/am-2020-7140 | Journal (article/letter/editorial) | | which occur in the Bongará district (Amazonas region, northern Peru). The Cristal and Mina Grande orebodies...economic minerals as in the world-famous Skorpion deposit in Namibia (Borg et al. 2003; Emselle et al. 2005;...Zn-phyllosilicates from Accha and Yanque (Peru) and Skorpion (Namibia), respectively, by means of transmission electron...characterized the Zn-bearing smectites from the Silver Coin Mine (U.S.A.). Buatier et al. (2016) and Choulet et al...Bongará area Bongará is a province of the Amazonas Region in Peru, located approximately 740 km north of |  | | Journal (article/letter/editorial) | | still work? 6. Examples of “Others” 32 6.1 Skorpion – Everybody’s dream 32 6.2. Deposits in South-Eastern...Accha – real calamine? 6.2.2. Yanque – a “small Skorpion”? 34 35 37 7. Nonsulfide Deposits of Other Metals:...version: vanadates in the Otavi Mountainland (Namibia) 42 8. Discussion and conclusions 43 Acknowledgements...deposits like the famous, silicate-hosted Skorpion (Namibia) are mineralogically challenging, but their...development or advanced exploitation stage include Skorpion (Namibia), Lan Ping (China), Angouran and Mehdiabad |  | | 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 |  | | | | comparable amounts as in the world-class Skorpion deposit (Namibia). Cerussite replaced galena and precipitated...hosted in the now-eroded rocks above the Yanque mine site. Zinc-rich solution migrated through the sedimentary...Andahuaylas-Yauri province in southern Peru (Cuzco region) covers an area of approximately 25,000 km2 and...(Carlier et al., 1996; Chávez et al., 1996). The region is characterized by a rugged, mountainous topography...2003). Stratigraphic units in the Andahuaylas-Yauri region consist of Jurassic and Cretaceous sedimentary |  | | Journal (article/letter/editorial) | | comparable amounts as in the world-class Skorpion deposit (Namibia). Cerussite replaced galena and precipitated...hosted in the now-eroded rocks above the Yanque mine site. Zinc-rich solution migrated through the sedimentary...Andahuaylas-Yauri province in southern Peru (Cuzco region) covers an area of approximately 25,000 km2 and...(Carlier et al., 1996; Chávez et al., 1996). The region is characterized by a rugged, mountainous topography...2003). Stratigraphic units in the Andahuaylas-Yauri region consist of Jurassic and Cretaceous sedimentary |  | | Journal (article/letter/editorial) | | Vila Ruiva Vila Ruiva Vila Ruiva Vila Ruiva Skorpion, Namibia BH 7007 sm 0807 sm 8027 sm 0727 sm O711 sm...in vein White crystals in vein White cement of sandstone Yellow-green crystals in vein et al. (2001) reported...in abandoned mines (Bwlch Glas mine, Wales, U.K., and Pinnacles Mine, New South Wales, Australia). They...measured temperature and isotope composition of mine waters and cerussite. The recalculated fractionation...Pinnacles sample. Both values plot 2.83‰ (Bwlch Glas mine) to 0.38‰ (Pinnacles) below the predictions of Eq |  | | 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) | | elongated peridotite intrusion in the Serra da Jacobina region, São Francisco Craton, Bahia, Brazil. Gold and...2001). The gold deposits in the Serra de Jacobina region (Bahia) are in a belt of siliciclastic metasedimentary...part of the 1.9 Ga tectonothermal evolution of the region (Teixeira et al., 2001). The emeralds of Carnaíba...hosted by low-grade metamorphosed siltstone and sandstone of the Paraguaçu Group, besides continental metarhyolites...Gameleira Cu–Au mineralization in the Serra dos Carajás region (Pará, Brazil) are amphibole- 351 plagioclase-quartz |  | Viola, Giulio, Andreoli, Marco, Ben-Avraham, Zvi, Stengel, Ingrid, Reshef, Moshe (2005) Offshore mud volcanoes and onland faulting in southwestern Africa: neotectonic implications and constraints on the regional stress field. Earth and Planetary Science Letters, 231 (1) 147-160 doi:10.1016/j.epsl.2004.12.001 | Journal (article/letter/editorial) | | that recent faulting occurred both in central Namibia and Namaqualand, South Africa and that it created...Elim-Vrede Fault 4000 Area shown on map 3000 3500 NAMIBIA Walvis Bay 24˚ Hebron Fault Dreylingen Fault...the Hebron–Dreylingen system. SK: Location of Skorpion mine discussed in the text. Figure adapted from Ben...Africa is generally considered as an intraplate region and thought of as a tectonically stable domain...events should be rare and of low intensity. Yet, the region shows remarkable historical seismic activity, generally |  | | Journal (article/letter/editorial) | | metasomatism and gold mineralisation at Plutonic gold mine, Marymia Inlier, Western Australia—M.F. Gazley,...supergene minerals from the Skorpion and Rosh Pinah ore deposits (Namibia): Genetic and paleoclimatic...Christina Yan Wang 152 170 Vol. 173, 2017 Near-mine exploration via soil geochemistry multivariate analysis...2016 A laterite-hosted APS deposit in the Amazon region, Brazil: The physicalchemical regime and environment...of the mafic volcanic rocks of the Buzwagi gold mine in the Neoarchaean Nzega greenstone belt, northern |  | | Journal (article/letter/editorial) | | potentially economic “zinc oxide” deposits (e.g., Skorpion, Namibia: Borg and Kärner, 2001, Borg et al., 2003;...Furthermore, there are additional nongeologic resources in mine dumps, flotation tailings, and smelter residues...nonsulfide Zn open-pit mine of Boleslaw, Poland. c. “Calamina” sample from the old Czerna mine, Poland. The sample...Selected Examples of European Nonsulfide Zinc Deposits Mine (district) Country Production history Style of...the underground Olkusz (Mississippi Valley-type) mine. 0361-0128/98/000/000-00 $6.00 Boland et al. (1992) |  | | Journal (article/letter/editorial) | | Pangea. In the southern and central Appalachian region, basement rocks were affected by two episodes of...province of the southern and central Appalachian region, rocks that record the Proterozoic history occur...occasionally observed and is defined by layers of pebbly sandstone within the conglomerate. The conglomerate grades...melts interacted with the so-called “hot zone”, a region at the boundary where basaltic melts pond and interact...magmatism, and rotation of Rodinia away from the polar region, rifting and magmatism related to a second plume |  | | Journal (article/letter/editorial) | | The best example is the world-class Skorpion mineralization (Namibia)—the largest supergene nonsulfide...was recognized for the first time in the Uberroth Mine, near Friendensville, in the Saucon Valley of Pennsylvania...weathering of Zn-bearing sulfides. In the Skorpion zinc deposit (Namibia), sauconite mainly occurs as coatings...zinc et d’aluminum hydrate” in the Vieille-Montagne Mine (Belgium). The mineral was definitely validated...low-temperature hydrothermal fluids, as in Preguiça mine, Southern Portugal (Will et al. 2014). Baileychlore |
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