Compositional and textural peculiarities of gold-rich alloys from the Merensky Reef
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Date
Authors
Merkle, R.K.W. (Roland Karl Willi), 1954-
Grote, Wiebke
Graser, Peter
Journal Title
Journal ISSN
Volume Title
Publisher
Geological Society of South Africa
Abstract
Gold-rich alloys with variable amounts of Pd from the Merensky Reef, Bushveld Complex, are characterized by a range of finely dispersed inclusions. The small sizes of these inclusions (median of 1,85 µm) make fully quantitative analyses virtually impossible. Tentative interpretation of semi-quantitative microprobe analyses demonstrates the presence of atokite. kotulskite, laurite, moncheite, niggliite, paolovite, rustenburgite, sobolevskite, and sperrylite. Some inclusions appear to represent unnamed minerals. Textures and assemblages imply that these gold grains and their inclusions formed from fluids through occasional remobilisation and co-precipitation.
Description
Keywords
Platinum-group element, Evaluation of variations, Compositional peculiarities, Gold-rich alloys, Inclusions, Textural peculiarities
Sustainable Development Goals
Citation
Merkle, R, Grote, W & Gräser, P 2008, ‘Compositional and textural peculiarities of gold-rich alloys from the Merensky Reef’, South African Journal of Geology, vol. 111, no. 2-3, pp. 177-186. [http://www.gssa.org.za/index.php?module=htmlpages&func=display&pid=5]