 | Borg, G., Karner, K., Buxton, M., Armstrong, R., Merwe, S. W. v. d. (2003) Geology of the Skorpion Supergene Zinc Deposit, Southern Namibia. Economic Geology, 98 (4) 749-771 doi:10.2113/gsecongeo.98.4.749 | Journal (article/letter/editorial) | | 749–771 Geology of the Skorpion Supergene Zinc Deposit, Southern Namibia GREGOR BORG,† KATRIN KÄRNER...South Africa Abstract The Skorpion zinc deposit in southwestern Namibia comprises a significant nonsulfide...age of 751.9 ± 5.5 Ma. The basin that hosts the Skorpion deposit has been shaped by horst and (half-)graben...style of the region is the result of intense faulting, folding, and thrusting. The Skorpion orebody is...The primary sulfide minerals comprise pyrite, pyrrhotite, sphalerite, minor chalcopyrite, and galena as |  | | 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) | | ineral N ames Skorpionite Skorpion Mine Lüderitz District Karas Region Namibia BRUCE CAIRNCROSS S Department...skorpionite scattered on a green tarbuttite matrix, Skorpion Zinc mine; field of view 1.6 cm. Bruce Cairncross specimen...the Skorpion mine 562 ROCKS & MINERALS Figure 2. View of the mining operation at the Skorpion Zinc...Zinc mine ca. 2012. Joanna Wicht photo. Figure 3. Location of the Skorpion Zinc mine in southern Namibia;...cleavage. The mineral is named after the Skorpion Zinc mine where it was discovered, and that is the |  | | Journal (article/letter/editorial) | | Mss and iss recrystallise at low temperature to pyrrhotite (Po), pentlandite (Pn) and chalcopyrite (Cpy)...alteration of the primary Po–Pn–Cpy assemblage, where pyrrhotite alters to pyrite and pentlandite alters to millerite...arsenopyrite with lesser galena, sphalerite and pyrrhotite. Minor phases of bismuthides and antimonides...blankets of porphyry Cu deposits in the Atacama region. The Chilean Palaeocene-Eocene metallogenic belt...Faride epithermal silver–gold deposit, Antofagasta region, Chile, Economic Geology, 86, 1222– 1237. Warren |  | | Journal (article/letter/editorial) | | Kingston"] at 08:22 13 August 2013 Rosh Pinah LEAD-ZINC MINE Figure 1 (above). Transparent yellow...the Rosh Pinah mine (foreground) with the village in the background. Gisela Hinder photo. Namibia 398...at 08:22 13 August 2013 he Rosh Pinah mine is located in southern Namibia, 20 kilometers north of the...and the farms Namuskluft 88 and Spitzkop III. The mine is somewhat isolated, and in order to get to it...need to be spent driving the roads in southern Namibia. The main access road branches off from the tarred |  | | 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 |  | | 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 |  | | Catalog/List | | rich black pitch like mass in blue Chrysocolla Star Mine, L_u/lwmbashi South Katanga C;fi/40 small 2x2 £25...tabular twinned crystal about 8 mm size ( Telino Mine, Linopolis, Minas Gerais Brazil) £40 Na Be PO4 11...( small hollow tubes or epimorphs) Toca da Onca Mine, Virgem da lapa, Minas Gerais Brazil £35 12. HOLMQUISTlTE...micro crystals on l xl .5 inch matrix Schoeller Mine Kladno. Czech Republic . a 15. KTENASITE blue...blue micros and coatings on l xl inch Glomrudkollen Mine, Modum Norway l xl £12 16. CORNETITE rich coverage |  | 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 |  | | 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...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 |  | | Journal (article/letter/editorial) | | μm), or accompanied by sulfides (arsenopyrite, pyrrhotite and pyrite) in quartz-carbonate-albite veins...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...Gameleira Cu–Au mineralization in the Serra dos Carajás region (Pará, Brazil) are amphibole- 351 plagioclase-quartz |  | | 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) | | 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 |  | | Journal (article/letter/editorial) | | 101, No. 12, 2016 Transformation of pyrite to pyrrhotite in the presence of Au-Ag alloys at 500°C—Galina...metasomatism and gold mineralisation at Plutonic gold mine, Marymia Inlier, Western Australia—M.F. Gazley,...isotope analysis by SIMS of pyrite, chalcopyrite, pyrrhotite, and pentlandite to refine magmatic ore genetic...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 |  | Poirier, G., Ercit, T. S., Tait, K. T., Piilonen, P. C., Rowe, R. (2009) New Mineral Names. American Mineralogist, 94 (2) 399-408 doi:10.2138/am.2009.538 | Journal (article/letter/editorial) | | cationic groups. Magnesiopascoite is from the Blue Cap mine, near La Sal, San Juan County, Utah, U.S.A. The...687–692. Martyite was discovered in the Blue Cap mine, La Sal, San Juan County, Utah. Associated minerals...(slightly asymmetric), 1046, 996, 973, 927 cm−1). The region below 650 cm−1 comprises partially overlapped bands...mineral with disordered structure from the Santa Rosa mine, Atacama desert, Chile. Neus Jb. Mineral. Abh.,...the polymetallic (silver, copper, lead) Santa Rosa mine, located in the Atacama desert of Northern Chile |  | | 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) |  | | Conference Proceedings (Volume) | | 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 |  | | Report (issue) | | Smithsonite slice and egg, 5.8 and 2.7 cm tall Masua Mine, Carbonia-lglesias, Sardinia, Italy Cal and Kerith...page Smithsonite, 9.2 cm wide 400 Foot Level, Kelly Mine, Magdalena District Socorro County, New Mexico Steve...Greece ion; Scovil photo ne xi repaired) umeb, Namibia ion; Fisher photo �exico; mithsoni Phila Bunks...1867. ·thsonian Smithsonite First Oxide Zone, Tsu Mine, Tsumeb, Nami 10cm tall Brent Lockhart coll Joe...of 10 centimeters! The crystal is from Tsumeb, Namibia, and is on display at the National Museum of Natural |  | | Journal (article/letter/editorial) | | Boni 2005). Development of the Skorpion nonsulphide zinc deposit in Namibia has put nonsulphide Zn–Pb deposits...Canadian border and it hosts the Zn– Pb Pend Oreille Mine in Washington State, USA. In the Salmo district...concentrations of pyrite, sphalerite, galena, local pyrrhotite and rare arsenopyrite and chalcopyrite in dolomitized...following nonsulphide minerals in deposits of the Salmo region (Table 1): Hemimorphite {Zn 4 Si 2 O 7 (OH) 2 ·H...thickness from 0.3 to 9 m, are recognized within the mine. Recent drilling intersected another Zn–Pb-bearing |  | | Book (edition) | | nature when observed under XPL; the matrix is pyrrhotite. Left (bottom): Polysynthetic hematite twinning...Colour & Ø Reflectance light brown, similar to pyrrhotite; 40.00 brownish tints; 39.24 light to brownish...visible Internal Twinning Reflect. Troilite yes Pyrrhotite yes Stibnite moderate, light lamellar and... Mineral Descriptions Molybdenite in Graphite; Bogala Mine, Sri Lanka 51 Copper, native Synonym(s): Cuivre...of cuprite (bluish grey); North Mine (North Broken Hill Mine; NBH Mine), Broken Hill, Yancowinna Co., |  | | Journal (article/letter/editorial) | | These, and probably the deposits of the East Sayan region (e.g. Zun Holba, Sora, Aksug), are part of the...formed, potentially at a similar time, but this region is dominated by deformation and plutonism associated...km along the eastern Asian Pacific margin. This region of lithosphere loss has a remarkable association...formation. The Kupol epithermal gold deposit Chukotka Region, NE Russia H. C. Golden 11/13 Proletarskaya Street...native gold; (3) subhedral arsenopyrite and/or pyrrhotite pseudomorphs after py1,2,3, and/or subhedral |  | | Book (edition) | | 298 300 302 304 306 308 310 312 314 316 318 Pyrrhotite Smythite Nickeline Breithauptite Freboldite Polarite...(yellowish white), quartz (dark grey); New Bullfrog mine, Nye Co., Nevada, USA [h]; Nic. // Anhedral electrum...(greenish grey), quartz (dark grey); New Bullfrog mine, Nye Co., Nevada, USA [h]; Nic. // Anhedral electrum...(bluish grey shades), quartz (dark grey); New Bullfrog mine, Nye Co., Nevada, USA [h]; Nic. // 8 Gold A ...sample - photo A), dolomite (dark grey); Harstigen Mine, Pajsberg, Filipstad, Värmland, Sweden [j]; Nic |  | | Journal (issue) | | cover Vanadinite 3.4 cm, from the North Geronimo mine, La Paz County, Arizona. Dick Morris collection;...custom jewelry. Wulfenite, 5.4 cm, from the Defiance mine near Gleeson, Cochise County, Arizona. Ken Donn...photo. Wulfenite (hot-pink), 3.7 cm, from the Glove mine, Tyndall district, Santa Cruz County, Arizona. Collected...pseudomorph after azurite, 4 cm, from the Inspiration mine, Globe-Miami district, Gila County, Arizona. Ken...Cerussite twins on matrix, 6.5 cm, from the Grand Reef mine, Aravaipa district, Graham County, Arizona. Ken |  | | Journal (article/letter/editorial) | | minerals: chalcopyrite and pyrrhotite in the Peridotite Zone; and pyrrhotite with pentlandite, pyrite and...geometallurgy is not new, but its modern holistic mine value chain application can be considered a critical...provide the practitioner with a means to optimise the mine schedule and metallurgical processes. The geometallurgical...modern trend towards efficient project evaluation, mine optimisation and risk management. With more complex...metallurgical process modelling and to add value to mine planning/optimisation. Geometallurgy should be an |
|
