 | Boni, M., Terracciano, R., Evans, N. J., Laukamp, C., Schneider, J., Bechstadt, T. (2007) Genesis of Vanadium Ores in the Otavi Mountainland, Namibia. Economic Geology, 102 (3) 441-469 doi:10.2113/gsecongeo.102.3.441 | Journal (article/letter/editorial) | | Genesis of Vanadium Ores in the Otavi Mountainland, Namibia MARIA BONI,ā Dipartimento di Scienze della Terra...mottramite, and vanadinite) in the Otavi Mountainland, Namibia, once were considered the greatest vanadium deposits...surrounding primary sphalerite-willemite orebodies (Berg Aukas type). The V deposits the Otavi Mountainland...Belgium. 0361-0128/07/3663/441-29 Mountainland, Namibia. Mining for vanadium, following the exploitation...Okorundu pipe Abenab West Harasib 3 Wolkenhauben Berg Aukas Zn mottramite Mottramite Cu descloizite Cu descloizite |  | Schneider, Jens, Boni, Maria, Laukamp, Carsten, BechstƤdt, Thilo, Petzel, Volker (2008) Willemite (Zn2SiO4) as a possible RbāSr geochronometer for dating nonsulfide ZnāPb mineralization: Examples from the Otavi Mountainland (Namibia) Ore Geology Reviews, 33 (2) 152-167 doi:10.1016/j.oregeorev.2006.05.012 | Journal (article/letter/editorial) | | mineralization: Examples from the Otavi Mountainland (Namibia) Jens Schneider a,ā, Maria Boni b,c , Carsten Laukamp...Germany d Geological Survey of Namibia, 1 Aviation Road, Windhoek, Namibia Received 12 September 2005; accepted...willemite from the Berg Aukas and Abenab West deposits, Otavi Mountainland (Namibia), which are hosted... Isochron regressions combining samples from Berg Aukas and Abenab West willemites yield RbāSr ages in...samples of coarse-grained, well-crystallized Berg Aukas willemite, which yield 499 Ā± 63 Ma (MSWD = 2 |  | | Journal (article/letter/editorial) | | Northern Platform of the Pan-African Damara Belt, Namibia: geochemical and ĀÆuid inclusion evidence from carbonate...a base metal sulphide ore province in northern Namibia where deposits are hosted by platform carbonates...Damara Belt. Deposits have been classiĀ®ed as the Berg Aukas- or Tsumeb-types, based on diĀerences in ore...the Tsumeb and Kombat (Tsumeb-type) and Berg Aukas (Berg Aukas-type) deposits, was established. Similar... Tsumeb-type deposits are distinguished from Berg Aukas-type deposits by having trace element and REE |  | Mondillo, Nicola, Accardo, Mariafrancesca, Boni, Maria, Boyce, Adrian, Herrington, Richard, Rumsey, Mike, Wilkinson, Clara (2020) New insights into the genesis of willemite (Zn2SiO4) from zinc nonsulfide deposits, through trace elements and oxygen isotope geochemistry. Ore Geology Reviews, 118. 103307 doi:10.1016/j.oregeorev.2019.103307 | Journal (article/letter/editorial) | | 31 area, Zambia), Kabwe (Zambia), Berg Aukas and Tsumeb (Namibia); 3. Supposedly supergene deposits:...formal description of the mineral from the Altenberg mine (Moresnet, 69 Belgium) and he named the new mineral...(Australia), Kabwe (Zambia) 79 and Berg Aukas and Abenab (Namibia). These deposits occur in Neoproterozoic...re-interpretation) of deposits like Beltana, Vazante, Berg Aukas and 90 Kabwe, where metamorphic grade is very...Belgium (Coppola et al., 2008; Choulet, 2019), Namibia and Zambia 96 (Terracciano, 2008; Schneider et |  | | Journal (article/letter/editorial) | | mineralization in the Otavi Mountain Land, Northern Namibiaāa review and regional interpretation A.F. Kamona...GĆ¼nzel 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...like Tsumeb (PbāCuāZnāGe), Kombat (CuāPbāZn), Berg Aukas (ZnāPbāV), Abenab West (PbāZnāV) all occur in...carbonate-hosted PbāZn deposits in the Abenab Subgroup at Berg Aukas and Abenab is not well constrained, but the stable |  | | Journal (issue) | | Actinolite from Namibia by Justin Zzyzx ............................................pg. 15 Abenab Mine by Ernst...Three Aloes Mine by Ernst Schnaitmann ........................................pg. 37 Berg Aukas by Ernst..................................pg. 47 Otjozondu Mine by Ernst Schnaitmann .............................we bring you eleven articles about locations in Namibia that do not receive much publicity. It is easy...legendary deposits such as Tsumeb, the Brandberg region and the Erongo Mountains. Alpine clefts, huge soda |  | | 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 ļæ½exico; mithsoni Phila Bunks...1867. Ā·thsonian Smithsonite First Oxide Zone, Tsu Mine, Tsumeb, Nami 10cm tall Brent Lockhart coll Joe...analyses of carbonates from the Polish Cracow-Silesian lead-zinc deposit show a complete series of substitutions |  | | Journal (article/letter/editorial) | | MINER.GES. 148 (2003) THE OTAVI MOUNTAIN LAND IN NAMIBIA: TSUMEB, GERMANIUM AND SNOWBALL EARTH by Frank...carbonate successions in the Otavi Mountain Land, Namibia, host a large number of polymetallic (Cu-Pb-Zn)...deposits, and are compared to the ores of Kombat and Berg Aukas. At Tsumeb, local pockets of germanite and reniĆ©rite-rich...structure. Massive Cu ore at the Khusib Springs mine is composed of tennantite, enargite, galena and...and Re. Cu-Pb ores at Kombat and Zn-Pb ore at Berg Aukas generally carry lower concentrations of Ge, As |  | | Journal (article/letter/editorial) | | the infrared method. h.rrnooucrroN Although the lead vanadates,descloizite,mottramite, and vanadinite...of this paper is to supplementearlier work on the lead vanadates of South West Africa with more detailed...phosphorus,and molybdenum replacingvanadium. Vanadinite,a lead chlorovanadatePb5(VO4)3C1, although not a member...been reported by Verwoerd (1957)at the Abenab West Mine. Earlier X-ray'invest'igationsoJ descloizite.Bannister...identical powder photographs for a group of zinc-copper-lead hydrous vanadates,namely descloizite,cuprian descioizite |  | | 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 |  | | Journal (article/letter/editorial) | | for sediment-hosted zinc-lead deposits in Neoproterozoic units of Namibia: Lead isotopic and geochemical...April 2004 Springer-Verlag 2004 Abstract The lead isotopic composition of galena from the Neoproterozoic...Skorpion in the Pan-African Gariep Belt, southwestern Namibia, as well as that of galena from minor occurrences...models and are similar to those found in the wider region of southern Africa (Otavi Mountain Land) and eastern...evolution of this part of SW-Gondwana. Keywords Lead isotopes Ć Lead-zinc deposits Ć Rosh Pinah Ć Gariep Belt |  | | Journal (article/letter/editorial) | | Publishers B.V., Amsterdam -- Printed in The Netherlands LEAD ISOTOPIC STUDIES OF SOME LATE PROTEROZOIC STRATABOUND...Hughes, M.J., Welke, H.J. and Allsopp, H.L., 1984. Lead isotopic studies of some Late Proterozoic stratabound...Res., 25: 137--139. The preliminary results of a lead isotopic study of the Owambo basin-type ore association...the ore association. The Berg Aukas type is mineralogically similar to the lead-rich members of the Mississippi...Kabwe (formerly Broken Hill, Zambia) and Berg Aukas (Namibia) are the most important occurrences of this |  | 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) | | Zn, Zambia; 28 = Skorpion, Namibia; 29 = Berg Aukas and Abendab, Namibia; 30 = Padaeng (Mae Sot), Thailand;...the sulfide zone are high (approx 18% zinc and 7% lead), the gossan cap and oxidized zone show complete... In extremely arid climates, such as those in Namibia (Tsumeb deposit: Lombaard et al., 1986; Hughes...profiles. In areas of deep, mature weathering, residual lead deposits with a silica-clay gangue may form by reduction...exist of tonnages and grades that can be cited Namibia Poland Silesian Crakow district Skorpion Spain |  | | Journal (article/letter/editorial) | | University] at 05:27 17 August 2017 Tsumeb Mine Namibia BRUCE CAIRNCROSS Department of Geology University...Figure 1 (above). Locality map showing Tsumeb in Namibia; prepared by William Besse. Figure 2 (left).Tsumebite...drusy smithsonite and azurite, 5.5 cm, Tsumeb mine, Namibia. This specimen has been quantitatively verified...found in the first oxidation zone at the Tsumeb mine. The typespecimens were associated with azurite...Location and History Tsumeb mine is located in the Oshikoto region of northern Namibia, 363 kilometers north |  | | 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...and reserves. In this context, Namibia is a major producer of copper, lead, zinc, cadmium, arsenic, antimony...unpublished. It is evident that mineral exploration in Namibia, as elsewhere. has changed from serendipitous discoveries |  | Silin, Ivan, Hahn, Klaus, GĆ¼rsel, Devrim, Kremer, Dario, Gronen, Lars, StopiÄ, SreÄko, Friedrich, Bernd, Wotruba, Hermann (2020) Mineral Processing and Metallurgical Treatment of Lead Vanadate Ores. Minerals, 10 (2) 197 doi:10.3390/min10020197 | Journal (article/letter/editorial) | | Mineral Processing and Metallurgical Treatment of Lead Vanadate Ores Ivan Silin 1 , Klaus M. Hahn 1, *...deposits, such as lead vanadate deposits. Mineral processing and metallurgical treatment of lead vanadate deposits... there are methods and strategies to reconsider lead vanadates as a highly-potential vanadium resource...This review does not merely provide an overview of lead vanadate sources and the challenges in previous...primary sources in the future. Keywords: vanadium; lead vanadate ores; mineral processing; metallurgical |  | Mondillo, Nicola, Wilkinson, Jamie J., Boni, Maria, Weiss, Dominik J., Mathur, Ryan (2018) A global assessment of Zn isotope fractionation in secondary Zn minerals from sulfide and non-sulfide ore deposits and model for fractionation control. Chemical Geology, 500. 182-193 doi:10.1016/j.chemgeo.2018.09.033 | Journal (article/letter/editorial) | | several Zn deposits in Ireland, Belgium, Poland, Namibia, Peru, Yemen and Zambia. The data are compared...form phases enriched in heavy zinc isotopes would lead to a gradual decrease in the ļ¤66Zn values of such...several localities in Ireland, Belgium, Poland, Namibia, Peru, Yemen and Zambia (Fig. 1), and compared...is observed in some of the deposits (Belgium, Namibia, Zambia) that may have either a supergene or hypogene...Wilkinson and Hitzman, 2015). Locally, nonsulfide zinc-lead CR mineralization was developed above these deposits |  | | Journal (article/letter/editorial) | | University Auburn, Alabama 36849-5305 TSUMEB, NAMIBIA D istinctive colors are characteristic of certain...October 2014 Smithsonite specimens from traditional lead-zinc occurrences in the eastern United States are...mines, Phoenixville, Chester County, the Ueberroth mine near Bethlehem, and the zinc mines at Friedensville...some of the midcontinental Mississippi Valley-type lead-zinc ore deposits. The formerly productive mines...County, Arkansas (Richards 1993). and the Hill lead mine, Hardin County, Illinois, are noted for such specimens |  | | Book | | GerhardNiedermayr& Gabi Schneider bode ,rand berg Organ Pipes / Twyfelfontein 7 AiAiba / farm...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 WĀ°Ntdhoek FOREWORD Namibia is endowed with an |  | | Journal (issue) | | Foote also made several collecting visits to the mine in 1890-1891, and brought back many good specimens...chemist and physicist). In 1895 Niven purchased the mine from its owner, on behalf of Thomas Edison. In the...dozen mines were opened, one of which (the Mariposa mine) produced a wider variety of mercury minerals than...cutting coarse-grained reddish granites of the hilly region thereabouts, known geologically as the Llano Uplift...Morgenstern photo. Calcite, 5.8 cm, from the Mariposa mine, Terlingua; Roh Lavinsky (The Arkenstone) specimen |  | | Book | | .,,., ..,,.... w + ..... . Ā·. .... . - Namibia Zauberwelt edler Steine und Kristalle ooa Dieses...Erdgeschichte 8 Zur Geschichte des Bergbaus in Namibia 17 Der Brandberg und die Mineralfunde in seiner...110 Auf Turmalinsuche in Namibia Die Demantoide von Tubussis in Zentral-Namibia 112 116 Sodalith von...Zeolithe vom GrootbergpaĆ in Namibia Kamphaugit-(Y) von der Rƶssing-Mine 120 124 126 136 Das Gahnit-Vorkommen...alpinotypen KlĆ¼fte aus der Gamsberg-Region 180 Die grĆ¼nen āAmethyste" aus der Region des Gamsberges 195 SpektakulƤre |  | Mondillo, Nicola, Boni, Maria, Balassone, Giuseppina, Forrester, Nigel, Putzolu, Francesco, Santoro, Licia (2020) Mineralogy and Genesis of the Kihabe Zn-Pb-V Prospect, Aha Hills, Northwest Botswana. Minerals, 10 (8) 685 doi:10.3390/min10080685 | Journal (article/letter/editorial) | | (Cu-Ag-Ge) prospect is located at the boundary between Namibia and Botswana (Aha Hills, Ngamiland District) in...2020, 10, 685 2 of 26 Mountainland (OML) in Namibia is host to several base metal ore deposits [2]...be grouped into at least four ore types: (1) Berg Aukas-type Zn-Pb deposits in carbonates; (2) Tsumeb-type...the basal Mulden Group [3]. Among these, the Berg Aukas- and Tsumeb-types, both hosted by carbonate rocks...economically most important mineral deposits. Berg Aukas-type deposits are considered to have formed either |  | | Journal (article/letter/editorial) | | 9(2) Ć
3, Z = 2, is a new mineral from the Capitana mine, CopiapĆ³, Atacama Province, Chile and has been identified...numerous other deposits world-wide. At the Capitana mine, it occurs as transparent, colorless, tapering hexagonal...secondary mineral in the oxidized zone of the Capitana mine, a Cu-Pb-Ag deposit, where it closely associated...array of unusual minerals. In 2004 at the Capitana mine near CopiapĆ³, one of the authors (R.A.J.) collected...the dumps of the southern workings of the Capitana mine. Three samples were found on different parts of |  | | Journal (article/letter/editorial) | | madeto the importantleadzinc-vanadiumdepositat Berg Aukas, togetherwith other willemite occurrences in... Mountains of South West Africa. At the Berg Aukas Mine exploratorydiamonddrilling hasindicatedsurface...differentto thosenotedin the upper levelsof the Berg Aukas mine and are very similarto thosepreviouslydescribedby...expectedthat slowlycirculating waters in an arid region would be in close thermal equilibrium with the...occurcloseto surfaceand in the upper levelsof the Berg Aukas Mine where a marked rise in temperatureabovethat |  | | Catalog/List | | it collected when the Tsumeb Mine (as well as other mines of the region) were still in production in...engineering work took him to the Tsumeb Mine in Namibia. This mine is renowned for producing what are arguably...desert-like "Sperrgebiet" area of the southern coast of Namibia, with its fabulous wealth of gem diamonds. One...Ianās interest stems from the family trips to Namibia, including the mines of Tsumeb. He worked with... 57001 Azurite Level 8, Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia If the attachment point on the |
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