期刊
DOKLADY EARTH SCIENCES
卷 476, 期 2, 页码 1177-1180出版社
MAIK NAUKA/INTERPERIODICA/SPRINGER
DOI: 10.1134/S1028334X17100142
关键词
-
资金
- Russian Foundation for Basic Research [15-05-08332-a]
This study presents compositional features of platinum-group element mineralization derived from the Late Archaean placers in the eastern part of the Witwatersrand basin. The significant presence of platinum-group minerals, formed by polycomponent solid-solution series in the system Ru-Os-Ir-Pt(+/- Fe), was determined using an electron microprobe analysis. Compositional data indicate that the source for polycomponent solid solutions of the Ru-Os-Ir-Pt-Fe system was the Archaean mantle of the Earth, slightly differentiated with respect to platinum-group elements.
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