 | BĂźhn, B., Rankin, A.H., Schneider, J., Dulski, P. (2002) The nature of orthomagmatic, carbonatitic fluids precipitating REE,Sr-rich fluorite: fluid-inclusion evidence from the Okorusu fluorite deposit, Namibia. Chemical Geology, 186 (1) 75-98 doi:10.1016/s0009-2541(01)00421-1 | Journal (article/letter/editorial) | | luid-inclusion evidence from the Okorusu f luorite deposit, Namibia B. BuĚhn a,*, A.H. Rankin b, J. Schneider...March 2001; accepted 7 December 2001 Abstract The Okorusu fluorite deposit occurs in Pan-African carbonaceous...northern Namibia. The epigenetic mineralization formed from fluids expelled from the Cretaceous Okorusu carbonatite...70458 â 0.70459, which are close to those of the Okorusu carbonatite. Primary and secondary aqueous fluid...than recorded for the fluorites and associated Okorusu carbonatite. Crush analysis of the bulk quartz |  | | 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 |  | BĂźhn, B, Schneider, J, Dulski, P, Rankin, A.H (2003) Fluidârock interaction during progressive migration of carbonatitic fluids, derived from small-scale trace element and Sr, Pb isotope distribution in hydrothermal fluorite. Geochimica et Cosmochimica Acta, 67 (23) 4577-4595 doi:10.1016/s0016-7037(03)00392-2 | Journal (article/letter/editorial) | | AbstractâAssociated with the Cretaceous Okorusu carbonatite complex (Namibia) is a hydrothermal fluorite mineralization...BuĚhn et al. Fig. 1. Geology of the Okorusu carbonatite complex, Namibia (after Van Zijl, 1962). modification...country rock marbles of the Cretaceous Okorusu carbonatite complex, Namibia. Here, vein-type fluorite mineralization...magmatic activity in the Damaraland igneous province, Namibia, lasted from âŹ137 to 124 Ma, and is thought to...metaluminous silicate rocks and peralkaline granite. The Okorusu carbonatite complex consists of alkaline silicate |  | | Journal (article/letter/editorial) | | magmas: implications from natural carbonatites, Namibia B. BuĚhn Instituto de Geoci^encias, University... Summary Two bimodal carbonatite complexes in Namibia of Cretaceous age are explored as to the presence...pressures, are clinopyroxene, perovskite= titanite, melanite, calcite, apatite, spinel and wollastonite (Hamilton...geochemical evolution of low-Si carbonatite bodies in Namibia, and addresses the response of carbonatite compositions...Kalkfeld and Ondurakorume carbonatites in northern Namibia, which are part of the Cretaceous Damaraland Igneous |  | | Journal (article/letter/editorial) | | waters and it was also determined that the Alis,ar region is different from the other two regions with respect...observed in spaces between biotite, amphibole, and melanite minerals and also along their edges (Fig. 2)....brown syenites of the Alis,ar region, like those in the Bayindir region, are dark and light purple and...Bayindir Boz H. Probable fault F No undertaking mine Mezar H. Asilik H. B l a c k S e Istanbul Anatolian...Karatombak H. Tom Cafertas H. F a Undertaking mine Joint system dip and strike Kirsehir TURKEY 0 |  | | Journal (article/letter/editorial) | | zonedon melanite phenocrysts tron microprobe data, compositional variation in zoned melanite phenocrysts...Ti-rich melanite-schorlomite from a tephrite plug in the complex is also of zoned Ti-rich melanite-schorlomite...complex in western India near the Chhota Udepur region is intrusive into basalts of the Deccan Volcanic...complex in western India near the Chhota Udepur region is intrusive into basalts of the Deccan Volcanic...small exposures seen allthe around thePetrographic region. PetAmbadungar village,village, whereaswhereas |  | | Book (edition) | | localities as inclusions in the limestoneââ (italics mine). Actually, the first published description of...carbonatite dikes cutting the kimberlite of the Premier mine (p. 542) he classed as magmatic, but 1 Bowen admitted...constituents of some of the massifs in the Meimecha-Kotui region of northern Siberia. ALKALIC CARBONATITIC COMPLEXES...Ca content in the pyroxene is characteristic. Melanite is a widespread constituent, not uncommonly essential...Mountain, Mrima Hill, Rangwa, Spitskop. In the Tuva Region, U.S.S.R., some carbonatitic complexes contain |  | | Report (issue) | | for foreign countries, if a given name refers to a mine or deposit, a nearby location or administrative...names may be used to refer to a single deposit or mine. For large deposits or mineralized areas, a 3 single...third order administrative area, basin/formation/region(area)/deposit, and deposit/site name. Guano and...third order administrative area, basin/formation/region(area)/ deposit, deposit/site name, deposit type...information in the next two fields, .Basin/Fmt/Region (area)/Deposit and Deposit/Site_Name, is meant |  | | Book | | magmatism of the eastern margin of the Atlantic (Namibia, Angola) or the western African kimberlites do...Mafic-Ultramafic Magmatism in the Southwest Uganda Region of the African Rift: Implications from Experimental.... . . ... 3 The Crust Under the Canary Islands Region ............. 4 Network of Fractures and Identity...Identity of Vertical Movements in the Canary Islands Region ........................... 4.1 Transoceanic and...African craton (200-180 Ma); Lebombo (195-190 Ma), Namibia (165-120 Ma), Chilwa (139 Ma), Luderitz (130 Ma) |  | | Journal (article/letter/editorial) | | the Alpine region, and (3) Mid-Triassic to early Jurassic extension in the extra-Alpine region. Isotope...hanging wall. During a subsequent mining period, the mine was re-opened to recover sideritic parts of the...are apatite, cancrinite, calcite, titanite and melaniteâgarnet. It is the plutonic analogue of the nephelinites...make a contribution to the cultural heritage of a region and may successfully be used in exploration (Mascaro...you look for a mine look near a mineâ. This includes the imperative âif you look for a mine look for smelting | | | Journal (article/letter/editorial) | | the Alpine region, and (3) Mid-Triassic to early Jurassic extension in the extra-Alpine region. Isotope...hanging wall. During a subsequent mining period, the mine was re-opened to recover sideritic parts of the...are apatite, cancrinite, calcite, titanite and melaniteâgarnet. It is the plutonic analogue of the nephelinites...make a contribution to the cultural heritage of a region and may successfully be used in exploration (Mascaro...you look for a mine look near a mineâ. This includes the imperative âif you look for a mine look for smelting |  | | Book (edition) | | Linopolis, Brazil, H Page 13: Gold, 35 mm.Eagle's est Mine, California, G Publi!>hed by Grdllit.u.o. Stefanikova43...abbreviated, e.g. canton (Switzerland), vilayet (Turkey), region (Chile), kray and oblast (Russia). The country...by Mobutu, and is now the Katanga administrative region again. The former Kivu province is now divided...United States or of the Upper Silesian historical region in Poland, where the importance of ore-bearing...Rice, Dolores co., both Colorado, at the Questa mine, Taos co., New 1994. Abernathyite K2[(UOJ 2l(AsO_J2]â˘6HzO |  | | Report (issue) | | Kearns 12. Post-Paleozoic magmatism in Angola and Namibia: A review . . . . . . . . . . . . . . . . . . ...propagation into the southern Tyrrhenian backarc region. . . . . . . . . . . . . . . . . . . . . . . ....Saharan zone, Cameroon volcanic line, Angola and Namibia, and the East African Rift system. This Special...studies of xenoliths from the lower crust in the region are from the Arabian plate, where juvenile Neoproterozoic...al., 2002). The upper felsic crust of the Bayuda region consists of abundant cratonic material reworked |  | | Book | | apatite, allanite, and sphene; but perovskite, melanite, rutile, and cassiterite, all of exceedingly weak...and quartz (black) which also replaces core. Bigay mine, Lachaux, Auvergne, France ( X 100) ( Geffroy and...oxides and locally much asphaltic material- Mi Vida mine, Monticello district; T emple 1'4ountain, San Rafael...sulÂŁdes of Pb, Cu, Zn, Fe, Co, and Ni- Happy Jack mine, White Canyon district; several deposits in the...ells,vorthite at the McDonald mine and hatchettolite at the Woodcox mine, both near Hybla, Ont., and in |  | | Book | | "Broadly regarded, the depth ta which a metalliferous region has been eroded affects its present characteristics...sills), if they are exposed in outcrop or in the mine workings at all. The Climax Mo complex is the best...known (e.g. the Montana Tunnels deposit, Obelisk Mine). The former locality contains disseminated pyrite...BALKHASH (PRIBALKHASH) REGION, KAZAKHSTAN, U.S.S.R. This is an outstanding region of Permo-Carboniferous...interpreted as marking the cores of stratovolcanoes. The region is densely mineralized and contains the principal |  | | Report (volume) | | magmas. Initial (or residual) melts from such a region, as distinct from those from greater depths, would...solidus approximately coinciding with the inflexion region in some kimberlite geotherms (about 180km). Phlogopitebearing...(Olafsson & Eggler 1983). For convenience the stability region of spinel peridotite, with or without amphibole...high levels in the mantle (in the felsic stability region), volatiles could migrate along the geotherm only...P-Trelations of detached melt bodies rising from a region of accumulation on a geotherm (G) along an adiabatic |  | | Book | | "Broadly regarded, the depth to which a metalliferous region has been eroded affects its present characteristics...sills), if they are exposed in outcrop or in the mine workings at all. The Climax Mo complex is the best...known (e.g. the Montana Tunnels deposit, Obelisk Mine). The former locality contains disseminated pyrite...BALKHASH (PRIBALKHASH) REGION, KAZAKHSTAN, U.S.S.R. This is an outstanding region of Permo-Carboniferous...interpreted as marking the cores of stratovolcanoes. The region is densely mineralized and contains the principal |  | | Report (issue) | | were hypersolvus and crystallized outside of the region of immiscibility in the AbâAnâOr system at 50â100...peralkaline granites from the Amis Complex in Namibia. The MI are enriched in Nb and REE and proved that...peralkaline granites from the Amis Complex, Brandberg (Namibia): Evidence for magmatic pre-enrichment from melt...emplacement of the Variscan granites in the Erzgebirge region: A review of the melt and fluid inclusion evidence...basaltic andesites and andesites from the Mt. Shasta region, N California. Contrib. Min. Petrol. 142(4), 375â396 |  | Kogel, Jessica Elzea, Trivedi, Nikhil C., Barker, James M., Krukowski, Stanley T. - Eds. (2006) Industrial Minerals and Rocks (7th ed.) Society for Mining, Metallurgy, and Exploration, Inc., Littleton, CO. | Book (edition) | | . . . . . . . . . . . . . . . . . . . . . . . . Mine Safety and Health Law . . . . . . . . . . . . ....omine, and rare-earth elements. In a lar ge diamond mine, for e xample, 50 percent o f the annual revenue...quarries supplying construction materials to a large region, and ultimately to so me of t he w orldâs la rgest...anization varies from a multimillion-ton surface mine using large excavators to a hand-dug pit with product...minerals sector, a broad def inition of in dustrial mine rals and rocks is discussedâa definition that must |  | | Book (volume) | | families or groups of villagers purchase a licence to mine; in other areas there is little regulation, and...buyer) will, by building relationships with miners, mine owners, and local traders, gain expertise and some...volume and quality of gemstones being mined in that region. As new localities are identified and new gemstones...localities or gemstones may lose their appeal or a region may become unproductive â so the market can be...Aquamarine Sapphire Spinel Topaz Zaire, Angola, and Namibia Diamond Zambia Chrysoberyl Emerald Botswana |
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