 | | Journal (article/letter/editorial) | | AND Pt–Fe ALLOYS FROM THE EVANDER GOLDFIELD, WITWATERSRAND BASIN, SOUTH AFRICA: DETRITAL ORIGIN INFERRED...Geology, University of Pretoria, Pretoria 0002, South Africa ABSTRACT The compositionally diverse platinum-group...(PGM) from the Evander Goldfield, in the eastern part of the Witwatersrand Basin, South Africa, have been...techniques. The characteristic feature of PGM from Evander is an extensive presence of Ru-rich alloys (i.e...isotopes, model 188Os age, Evander Goldfield, Witwatersrand, South Africa. 187Os/ SOMMAIRE Nous avons |  | | Journal (article/letter/editorial) | | Ru–Os–Ir–Pt–Fe System from the Eastern Witwatersrand (South Africa)1 I. Yu. Badanina* and K. N. Malitch Presented...is mainly due to (i) an intense application of local methods into practice of mineralogical investigations...derived from the Late Archaean placers of the Evander Goldfield located in the eastern extremity of the Witwatersrand...(IrAsS), hollingworthite (RhAsS), ruarsite (RuAsS), sudburyite (PdSb), polkanovite (Rh12As7) and cooperite (PtS)...Chemical composition of Ru–Os–Ir alloys from the Evander Goldfield in coordinates Ru–Os–Ir(+Pt), at %. 1 and |  | | Report (issue) | | courtesy of D. K. Hallbauer, Chamber of Mines of South Africa ; radioluxograph by David M. Watson, Geological...Grandstaff. Discussion. South Africa: D. Uraniferous quartz-pebble conglomerates in South Africa, by J. W. von...model on the Kaap-Vaal craton, Witwatersrand, South Africa, by W. E. L. Minter. Discussion. F. The Dominion...Dominion Reef Group, Western Transvaal, South Africa, by J. W. von Backstrom. G. The crossbedded nature...Proterozoic Vaal Reef placer deposit, Witwatersrand, South Africa, by W. E. L. Minter. Discussion. I. Examples |  | | Book | | Mineralization 4.10. A Comprehensive Example: The Cree de District, Colorado, USA 4.11. Summary 4.12. Recommended...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 |  | | Report (volume) | | Unknown Known to native Americans - A de Ulloa (South America) S Tennant (England) S Tennant (England)...............................................40 Local PGM saturation during chromite growth.............quench to a glass, so HSE metal may also form by local saturation due to a build-up in concentration in...silicate melt, accounting for the low value for DPt. Local PGM saturation during chromite growth Both empirical...involves the development of a redox gradient, owing to local reduction within the mineral–melt interfacial region |
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