Distribution and controls of platinum group element and base metal mineralization in the Darwendale subchamber of the Great Dyke, Zimbabwe

Abstract

Research Article| July 01, 1989 Distribution and controls of platinum group element and base metal mineralization in the Darwendale subchamber of the Great Dyke, Zimbabwe A. H. Wilson; A. H. Wilson 1Department of Geology, University of Natal, P.O. Box 375, Pietermaritzburg 3201, South Africa Search for other works by this author on: GSW Google Scholar A. J. Naldrett; A. J. Naldrett 2Department of Geology, University of Toronto, Toronto, Ontario M5S 1A1, Canada Search for other works by this author on: GSW Google Scholar M. Tredoux M. Tredoux 3Schonland Research Centre, University of Witwatersrand, Johannesburg, South Africa Search for other works by this author on: GSW Google Scholar Author and Article Information A. H. Wilson 1Department of Geology, University of Natal, P.O. Box 375, Pietermaritzburg 3201, South Africa A. J. Naldrett 2Department of Geology, University of Toronto, Toronto, Ontario M5S 1A1, Canada M. Tredoux 3Schonland Research Centre, University of Witwatersrand, Johannesburg, South Africa Publisher: Geological Society of America First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (1989) 17 (7): 649–652. https://doi.org/10.1130/0091-7613(1989)017<0649:DACOPG>2.3.CO;2 Article history First Online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation A. H. Wilson, A. J. Naldrett, M. Tredoux; Distribution and controls of platinum group element and base metal mineralization in the Darwendale subchamber of the Great Dyke, Zimbabwe. Geology 1989;; 17 (7): 649–652. doi: https://doi.org/10.1130/0091-7613(1989)017<0649:DACOPG>2.3.CO;2 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGeology Search Advanced Search Abstract Three major sulfide zones containing platinum group elements (PGE) have been identified in the upper part of the ultramafic sequence of the Great Dyke. The PGE are at the bases of the sulfide zones; the lower two have sparse sulfide mineralization over a thick interval; the upper zone contains higher grade in a thinner stratigraphic layer. None of the current models for the formation of stratabound sulfide deposits in layered intrusions adequately accounts for the mineralization. The two lower sulfide zones are interpreted as resulting from progressive fractional segregation of sulfide from the silicate magma, whereas the upper zone may have resulted from mixing of a relatively primitive magma at the base of the chamber with an evolved liquid derived from near the roof. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.