 | | Report (volume) | | Fl.~o~.iSP:~.,~r of'Atrica Fluorspar Resources of Africa By RALPH E. VAN ALSTINE and PAUL G. SCHRUBEN...resources of Africa. (Geological Survey bulletin ; 1487) Bibliography: p. 1. Fluorspar-Africa. I. Schruben...environments and types of fluorspar deposits ---------------------Fluorspar production and exports---...exports--------------------------------------Fluorspar reserves --------------------------------------------------Outlook...ILLUSTRATIONS Page PLATE 1. Map of Africa showing the location of fluorspar and carbonatite deposits, rifts |  | | Book (edition) | | OF OF SOUTH AFRICA MINES GEOLOGICAL SURVEY MINERAL RESOURCES OF REPUBLIC OF THE SOUTH AFRICA...Second World War, and partly as a result of it, South Africa experienced vast industrial expansion. This...official ‘handbook on the mineral resources of South Africa, it has become necessary to revise, or rather...great diversity and magnitude of South African mineral deposits and local mining operations, the Economic...Chamber of Mines of South Africa with Mr G. H. Grange as co-ordinator, and the South, African mining industry; |  | | Book | | Sandstone and related materials Feldspar 106 Fluorspar Garnet Graphite 110 Slate Sodium sulfate ...Lithium minerals 246 252 Sodium carbonate 120 Gypsum Iron oxide Sillimanite minerals 153 161 295...major producing districts, or a representative district if there are many. We name the chief mining companies...supply must come not merely from one district but from a single mine. Thus the physical properties of many...eclipsing the mineral magnesite in some areas; the trona mine rather than the Solvay plant is now the main source |  | | Journal (article/letter/editorial) | | been found outside the Soviet Union. Fluorite (fluorspar) is a very important mineral, essential to the... 13% barite, 0.6% celestite, >2% anhydrite and gypsum, and —2% fluorapat ite. In both types of ore,...oil shales of Jordan, which also contain pyrite, gypsum, and apatite, in concentrations up to 10% [24]...currently being formed in lakes in various parts of Africa, Asia, and other continents. For example, rift...The highest concentrations occur in carbonate and gypsum-anhydrite rocks, which constitute a form of caprock |  | | Report (issue) | | barite crystals, Minnie Pool Global trends in fluorspar production V 21 . 22 . 23. 24. 25 . 26 . 27.................... Typical specifications for fluorspar grades .........................................Western Australia has no recorded production of fluorspar,but contains two large deposits at Speewah and...economic trends until the turn of the century. After South Australia, Western Australia has been the largest...clastic rocks. Some examples are those in the Dierks district in Arkansas (USA), and barite rosettes of Oklahoma |  | | Book | | Struik Nature (an imprint of Penguin Random House South Africa (Pty) Ltd) Reg. No. 1953/000441/07 The Estuaries...Century City, 7441 PO Box 1144, Cape Town, 8000 South Africa Visit www.randomstruik.co.za and join the Struik...published edition, 2015: Penguin Random House South Africa (Pty) Ltd Publisher: Pippa Parker Managing editor:...Hatfield Campus, University of Pretoria Pretoria, South Africa Dr Lynnette Greyling Department of Geological...Town Private Bag X3 Rondebosch 7701 Cape Town, South Africa Note: The authors and the publishers cannot | | | Book | | Struik Nature (an imprint of Penguin Random House South Africa (Pty) Ltd) 1953/000441/07 Reg. No. The Estuaries...Century City, 7441 PO Box 1144, Cape Town, 8000 South Africa Visit www.randomstruik.co.za and join the Struik...published edition, 2015: Penguin Random House South Africa (Pty) Ltd Publisher: Pippa Parker Managing...Hatfield Campus, University of Pretoria Pretoria, South Africa Dr Lynnette Greyling Department of Geological...Town Private Bag X3 Rondebosch 7701 Cape Town, South Africa Note: The authors and the publishers cannot |  | | Report (issue) | | niobium in Brazil; and platinum-group elements in South Africa and Russia), thus increasing the risk for supply...Ba), beryllium (Be), cobalt (Co), fluorite or fluorspar (fluorine, F), gallium (Ga), germanium (Ge), graphite....B3 Graph showing dates associated with all the mine sites on the U.S. Environmental Protection Agency’s...production, U.S. apparent consumption, and U.S. mine production of antimony from 1900 to 2012............................F2 Graph showing world cobalt mine and refinery production and apparent consumption |  | | Journal (article/letter/editorial) | | 10sIviolles Argentina Fjalskar, Finland Mutue Fides, South Africa Nedre Eideq Norway R&tone. RhodeIsland EysDashwa...Finhmd &aJ~tiand Suominen, 1988); Mutue Fides, South Africa (Steyn, l%l). The subassemblage baesmaesite-fluoceriteis...carbonatite) in the Fen central complex, Telemark (south Norway). Lithos 17, 227-245. ANDERSENT. ( 1986)...southern Schwarzwald veins and isotope studies on gypsum from central Schwarzwald, FR Germany. Neues Jahrb...the O$mp& Dam Cu-U-Au-Ag deposit, Roxby Downs, South Australia. Econ. Geol. 85, l-28. ORESKESN. and EINAUDIM |  | | Book | | 1. Mafic dyke swarms in the Kaapvaal Craton, South Africa 189 3.4.2. The Mackenzie dyke swarm, Canada...controls of intracontinental alkaline magmatism in Africa 194 3.5.2. The Damaraland alkaline province, Namibia...intraplate magmatism around the Vredefort Dome, South Africa 6.3.4. Metamorphism and fluid generation; metamorphogenic...Bushveld lgneous Complex, South Africa 8.2.3. Molopo Farms Complex, South Africa and Botswana 8.3 Magmatic...ofthe Damara and Irumide orogens, Soutbwestern Africa, and the Mid Continent Rift System, USA 9.3.1. |  | | Book | | 447 467 491 Company Index 503 Tables: World Mine Production of Gold, Silver and Base Metals 5A2...Mining OFFICES: 5011 Meadowood Way Paradise Peak Mine Suite 300 (100% FMC Gold) * Sales Reno, Nevada...Elko, Nevada (303) 292-7500 Royal Mountain King Mine (100% FMC Gold) Copperopolis, California Beartrack... Gold's price fell to levels at which half the South African gold mines, probably half those in Australia...have been widespread, especially in the highcost South African mines. Some say a structural change is taking |  | | Book | | the former National Institute for Metallurgy (South Africa). Since the middle 1970's, there has been a...Geostandards Pty. Ltd., 655 Botany Road, Roseberry, New South Wales 2018, Australia. ANRT Association (see GIT/IWG)...Technology, Private Bag X3015, Randburg 2125, South Africa. NBS National Bureau (now NIST). NIM National...SABS South African Bureau of Australia. of Standards, Private Bag X191, Pretoria 0001, South Africa...purity magnesite (ECRM 751-1) BCS 392 BAS fluorspar BCS 393 BAS limestone AWI-1 B7 BAK-1 BCR-1 |  | | Book | | Corporation of South Africa, the Chair of Economic Geology at Rhodes University, South Africa, and since...appointments at the Astrobiology Centre, University of New South Wales, Sydney, and the China University of Geosciences...which has included work in Europe, southern Africa, South East Asia, New Zealand, the southwest Pacific...Felsic Phase of the Bushveld Igneous Complex, South Africa . . . . . . . . . . . 4.3.6 The Sn-W Deposits.... . . . . . . . 4.4.4 Sabie-Pilgrim’s Rest, South Africa . . . . . . . . . . . . . . . . . 4.4.5 Capricorn |  | | Report (volume) | | fluid phase. Zoning can also be controlled by the local presence of immobile cations such as Cr3+. Sánchez-Viscaíno...of relic chromite grains strongly influenced the local composition of epidote, which results in a very...of Fig. 15c). These features indicate that the local environment significantly influences the growth...former fine-grained basaltic rocks, thus creating a local chemical environment dominated by Ca and Al. If...phengite, and clinozoisite (also depending on the local position in the center or in the rim of the pseudomorph) |
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