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1
Mineral Deposits and Earth Evolution
Gold mineralization within the Witwatersrand Basin, South Africa: evidence for a
modified placer origin, and the role of the Vredefort impact event C. L.
HAYWARD12, W. U REIMOLD2, R. L. GIBSON2 & L. J. ROBB3 1 Department of
Earth ...
Dr. Iain McDonald, Geological Society of London, 2005
2
Research in the
Witwatersrand Basin: our foremost economic ...
Phase 2 It was realised in the late 1940s that the Witwatersrand gold-bearing
strata might be confined to an ancient drainage-basin. Although sedimentological
observations had been made by various geologists it was only in 1959 that the
first ...
W. E. L. Minter, University of Cape Town, 1984
3
Evolution of Early Earth's Atmosphere, Hydrosphere, and ...
Wyatt Ernest Lawrence Minter Department of Geosciences, University of Cape
Town, Rondebosch 7700, South Africa ABSTRACT The 3.05 Ga U-Pb dating of
uraninite grains in Dominion and Witwatersrand conglomerates has established
...
Stephen E. Kesler, Hiroshi Ohmoto, 2006
4
Processes on the Early Earth
Poujol, M., Robb, L.J., and Respaut, J.P., 1998, U-Pb and Pb-Pb isotopic studies
relating to the origin of gold mineralization in the Evander goldfield,
Witwatersrand Basin, South Africa: University of the Witwatersrand, Economic
Geology ...
W. U. Reimold, Roger Lawrence Gibson, 2006
5
Extracting the Science: A Century of Mining Research
Ph.D. Thesis, University of the Witwatersrand, Johannesburg, South Africa.
Handley, M.F. 1987. A study of the effect of mining induced stresses on a fault
ahead of an advancing longwall face in a deep level gold mine. M.Sc. Thesis,
University ...
6
United States Geological Survey Professional Paper
vaal, and Ventersdorp systems to reach the gold-bearing conglomerates of the
Witwatersrand system. The output of osmiridium from the Witwatersrand, in the
Transvaal and Orange Free State, has remained sensibly constant since 1925,
and ...
7
Geological Survey Professional Paper
FACTOR 1 (Co, Ni, Pb) EXPLANATION □ Authigenic Witwatersrand pyrites
Allogenic Witwatersrand pyrites Primary pyrites Figure 6. - Scatter diagram of the
factor loading values. sample, F III, exhibits a certain affinity to the data points of
the ...
8
Developmental Psychology
She was a senior lecturer in the psychology department at the University of the
Witwatersrand where she ran the Clinical Psychology Professional Training
programme for six years. Her primary academic interests are within the arena of ...
Jacki Watts, Kate Cockcroft, Norman Duncan (Ph. D.), 2009
9
The Mining Industry: Evidence and Report of the Industrial ...
Evidence and Report of the Industrial Commission of Enquiry The Witwatersrand
Chamber of Mines. PAGE. Wages, miners', difference in, on the Band and in parts
of America. 151 Wages on the mines of Montana, U.S.A. 157 Wages on the ...
The Witwatersrand Chamber of Mines, 2013
10
Herbaceous Plant Ecology: Recent Advances in Plant Ecology
maintenance of the grassland biome on the Witwa- tersrand (Kerfoot 1987) and
thus it is expected that cryptophytes and hemicryptophytes, with their buds
protected below the soil surface, will be the dominant life forms on the
Witwatersrand.
A. G. Van der Valk, Arnoud van der Valk, 2009
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South African sites reveal more about early modern human culture
University of the Witwatersrand, Johannesburg, South Africa—Two of South Africa's most famous archaeological sites, Sibudu and Blombos, have revealed that ... «Popular Archaeology, 七月 15»
Public Release: 7-Jul-2015 Mass extinction event from South …
An international team led by researchers from the Evolutionary Studies Institute (ESI) at the University of the Witwatersrand, Johannesburg, has obtained an age ... «EurekAlert, 七月 15»
New study shows South Africans using milk-based paint 49000 …
An international research team led by the University of Colorado Boulder and the University of Witwatersrand in Johannesburg, South Africa, has discovered a ... «CU Boulder News & Events, 七月 15»
Sefapanosaurus: New Dinosaur Found in South Africa
Image credit: University of the Witwatersrand / Sci-News.com. ... and the University of the Witwatersrand in Johannesburg, lead author on the study published in ... «Sci-News.com, 六月 15»
Coffee production slipping in Tanzania as temperatures rise
According to a study conducted by the University of Witwatersrand, researchers have established that higher night-time temperatures are the main factor behind ... «Business Insider, 四月 15»
University of the Witwatersrand
VIDEO: Researchers at the University of the Witwatersrand in Johannesburg have demonstrated that laser light traveling along a helical path through space, can ... «EurekAlert, 四月 15»
Stinky Sulfurous Air Created South Africa's Gold
South Africa's Witwatersrand contains some of the highest concentrations of gold in the world. Where exactly did that gold come from? A scientist at ETH Zurich ... «Tech Times, 二月 15»
Scientists narrow down how Witwatersrand gold deposits formed
New research is attempting to reconcile the many varying theories on how the world's largest gold deposits, in South Africa's Witwatersrand, formed. The new ... «Australian Mining, 二月 15»
Earth's biggest gold hoard in South Africa was formed by ancient …
Gold was discovered in South Africa's Witwatersrand Basin in 1886, and, since then, around half of all gold mined throughout the world has originated from that ... «International Business Times UK, 二月 15»
Ancient microbes formed Earth's biggest hoard of gold
Approximately 40,000 metric tonnes of gold have been mined from the Witwatersrand Basin in South Africa since its discovery in 1886. That's three times more ... «New Scientist, 二月 15»
