Cardiff University | Prifysgol Caerdydd ORCA
Online Research @ Cardiff 
WelshClear Cookie - decide language by browser settings

Platinum-group elements in Cu-sulphide ores at Carolusberg and East Okiep, Namaqualand, South Africa

Maier, Wolfgang D. 2000. Platinum-group elements in Cu-sulphide ores at Carolusberg and East Okiep, Namaqualand, South Africa. Mineralium Deposita 35 (5) , pp. 422-429. 10.1007/s001260050253

Full text not available from this repository.


Cu-sulphide ores at Carolusberg and East Okiep have Cu/Ni ratios of up to 80, an order of magnitude higher than most magmatic sulphide ores elsewhere. In contrast, Se/S ratios (500–1700 × 10−6) and PGE tenors (up to 5 ppm) of the sulphides are in the range of more typical magmatic sulphide ores. The observed metal patterns may be explained by a process of monosulphide solid solution (mss) fractionation of a magmatic sulphide melt at depth, but this model is currently considered unlikely, due to the paucity of refractory ores in the district. Assimilation of Cu-rich country rocks during ascent of the Koperberg magmas proved difficult to test with the available data, but this provides no explanation for the common high-grade metamorphic setting of similar ores elsewhere. A restitic origin of the pyroxenites appears to explain many of the observed ore features and is presently favoured here. Desulphidization of a primary magmatic sulphide ore could not have yielded the observed metal patterns and is therefore considered to be of relatively minor importance in ore genesis.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Earth and Ocean Sciences
Subjects: Q Science > QE Geology
Publisher: Springer Verlag
ISSN: 0026-4598
Last Modified: 04 Jun 2017 06:08

Citation Data

Cited 13 times in Google Scholar. View in Google Scholar

Cited 17 times in Scopus. View in Scopus. Powered By Scopus® Data

Cited 13 times in Web of Science. View in Web of Science.

Actions (repository staff only)

Edit Item Edit Item