 | | Journal (article/letter/editorial) | | JanuaryFebruary: Rhodochrosite, N’Chwaning mine, Hotazel, South Africa. Martin Zinn specimens, Erica and Harold Van...“Alaskaite,” Colorado, 307 Albite, California, 160; Witwatersrand, 395 Allanite-(Ce), California, 162 Allophane...Colorado, 308; New Mexico, 385; Utah, 244; Witwatersrand, 395 Barite from the Cedar Creek Anticline,...from the Carletonville Gold Mines, Witwatersrand Goldfield, South Africa, 390-99 Calcite, Colorado, 309;...253; Michigan, 342; Missouri, 227; Utah, 244; Witwatersrand, 398 California, tourmaline, 156-68 Carl Bentley |  | | 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 |  | | Journal (article/letter/editorial) | | illustrating the nature of Archean volcanismin southern Africa and elsewhereare made available for purposesof...mineralization. The Archean mineralization of southern Africa is briefly compared and contrasted with that of...the easternpart southern Africa. of Botswana, the northeasternsegment of South The purposes of this paperare...paperare, briefly,to consider Africa, and Rhodesia,the shield consistsof two crathe nature and distribution...GREENSTONE BELT LITHOLOGICAL UNITS RHODESIA/BOTSWANA SOUTH AFRICA/SWAZILAND Sedimentary unit ShamraJah Mafic-to-l'el$ic |  | | Journal (issue) | | Twenty-three, Number Three ® Articles Gold in South Africa ..............................................Record, ,·olume 23 , Ma.,·-June. 1992 GOLD IN SOUTH AFRICA Bruce Cairncross Department of Geology Rand...Afrikaans University P.O. Box 524 Johannesburg 2000 South Africa Carl R. Anhaeusser Economic Geology Research...the Witwatersrand P.O. Wits 2050 Johannesburg South Africa Gold has been mined in South Africa for over...has been won from conglomerate reefs of the Witwatersrand goldfields, where production from individual | | | Journal (issue) | | Mowry Place Tucson, AZ 85741 Articles Gold in South Africa ..............................................Afrikaans University P.O. Box 524 Johannesburg 2000 South Africa Carl R. Anhaeusser Economic Geology Research...O. Wits 2050 Johannesburg South Africa Gold has been mined in South Africa fo r over a century. Most...has been won from conglomerate reefs o f the Witwatersrand goldfields, where production from individual...INTRODUCTION Gold was mined in pre-European times in South Africa by the indigenous tribes. Most of the gold was |  | | 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...reason of the great diversity and magnitude of South African mineral deposits and local mining operations...Chamber of Mines of South Africa with Mr G. H. Grange as co-ordinator, and the South, African mining industry; |  | | Book | | and uranium is an important by-product of many South African gold ores. The properties of a mineral govern...occur along a 2400 km belt from Queensland to New South Wales. Most have quartz fillings and some are mineralized...copper-bearing breccia pipes of Messina in South Africa (Jacobsen & McCarthy 1976). Fig. 2.6. Plan...mining areas of the beach sand deposits of Crowdy South Wales, Australia. (After Winward 1975.) 15 concordant...is won from Precambrian deposits of this type in South Ne Fig. 2.14. \ Distribution of pay-streaks |  | | Report (edition) | | bookseller 1936 Price 3s. Net IMPERIAL INSTITU1··E SOUTH KENSINGTON, S.W. 7 Ts E~ Imperial Institute was...Protecto1·ate .. Southe1n Rhodesia • • • • Union of South Africa • • • • Canada .. •• • • • • Newfoundland •...Empire, especially in Canada and the Union of South Africa. During 1913, Russia was responsible for over...the list of producers of the platinum metals. South Africa has large reserves of platinum ore, and is the...recent years in the Rustenbu1·g district of 8011th Africa. Next in economic importance to native platinum |  | | Book | | Platinum; qualities Africa. British and distribution. Ural Mountains. South Columbia. Genesis of Platinum...Pneumatolytic Rossland, South Australia, and Braden Mine, Chile. Lodes of Cornwall. Pipe Lodes South Australia and...and South Africa. Disseminations. Pyritic Masses Spain and Mt. Lyell. Secondary Ores Secondary Enrichments...< Almaden Mines: Price. 1 Mi". New the South Africa. Idria, Califor: of Ores with Kainoxoic Formation...Pneumatolytic *57 Origin. Gems— Diamond, South Africa Asbestos. Monazite. The Brazil; theories of |  | | Book | | talc vug in 1997, is 1.7 cm long (Marty, 2004 ). AFRICA widely in Litchfield County, where good crystals...which they called the Bentley Lake Road occurrence, south of Bancroft. Sharp, flattened rhombohedral ilmenite...Girardville, itself 40 km northwest of Lac Saint-Jean in south-central Quebec, very large and sharp ilmenite Cl)...the town of Amsteg, subordinate drainages running south to Val Caverdiras; ilmenite rose-bearing clefts...western flank of the Tschingelstock, a few kilometers south of the uppermost Maderanertal and near the Brunnital |  | | Book (edition) | | critical in the USA, but in the Republic of South Africa (RSA), a major source of all three, they are...and uranium is an important by-product of many South African gold ores. Among industrial minerals the...develop the 450+ Mt eu-U-Au Roxby Downs Project in South Australia, Western Mining Corporation and British...Australia, along a 2400 km belt from Queensland to New South Wales, there are hundreds ofpipes in and close to...the copper-bearing breccia pipes of Messina in South Africa (Jacobsen & McCarthy 1976). Mantos and pipes |  | | Book | | Eastern Goldfields, Western. Australia Barberton, South Africa Eastern Goldfields, Western Australia Manitoba... Large layered complexes Bushveld Complex, South Africa Stillwater Complex, USA Great Dyke, Zimbabwe...Skaergaard, Greenland 4. Kimberlites Kimberly, South Africa B, Intrusions in cratonic areas Diamond C...Bushveld, South Africa Great Dyke, Zimbabwe Sudbury, canada Bushveld, South Africa Bushveld, South Africa...Australia Pechanga, Russia Diamond Kimberly, South Africa Yakutia, Russia Kimber lites Carbonatite complexes |  | | Book | | CONGLOMERATES OF THE WITWATERSRAND.......... F. H. Hatch.. Development of the Witwatersrand .....°-......-..........0-+.0+-Stratigraphy of the Witwatersrand: The Witwatersrand system............... “ga sida ee...ascitic 2 < sic suis dive eels ne « ects North-South No. 7 Vein; 90-Ft. Level; 12 Inches Wide; Kerr Lake...se)sv30 4 obs) cis saree Ideal Section of Bendigo Goldfield, Showing the Three Main Lodes..... Secon smo niCwan...Opposite Section by F. H. Hatch Across the Witwatersrand Beds.............. Double Outerop of the Main |  | | Book | | images' of each other Left: Cerussite from South- West Africa, forming multiple intergrowths Far left:...natrolite); capillary : hair-like (as in some millerite); columnar : like a column, relatively thick (as...platinum deposits of the famous Merensky Reef in South Africa occur in accumulations of this kind. Phenocrysts...been found in such areas as the chalk downs of south¬ ern and eastern England. Modem man still uses rocks...average figure. For instance, in the Witwatersrand goldfield of South Africa, gold exists in a concentration |  | | 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 |  | | Book (edition) | | Meredith (eds) Geology and minerals resources of West Africa J.B. Wright The inaccessible Earth G. C. Brown...example, the common black flint from the Chalk of the South of England). This condition is very common among...on to the equatorial plane by joining it to the 'south pole' (bottom point) of the enclosing sphere , or...between the vertical line joining the north and south ' poles' of the sphere and the pole to a particular...resolves light into components vibrating in a north-south direction. The two componen_ts interfere on leaving |
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