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The use of quartz concentrate (acid-insoluble residue) as a sample medium in lithogeochemistry and regolith exploration studies: development of a method

Citation

Van Moort, JC and Pwa, A, The use of quartz concentrate (acid-insoluble residue) as a sample medium in lithogeochemistry and regolith exploration studies: development of a method, Geochemistry: Exploration, Environment, Analysis, 5, (3) pp. 267-277. ISSN 1467-7873 (2005) [Refereed Article]

DOI: doi:10.1144/1467-7873/03-067

Abstract

Quartz concentrates provide a general sample medium with low background concentration of minor and trace elements. They can be obtained from most rock types by hot nitric acid or aqua regia leach, sometimes supplemented by sulphuric acid leach. The concentrates consist of a mixture of primary quartz, secondary quartz resulting from wallrock alteration and insoluble minerals such as sericite and alkali feldspar. Multi-element analysis enables detection of even the weakest mineralization and wallrock alteration, as expressed mainly by Ba, Ca, Ge, K, Li, Mn, Na, Rb and Sr, in addition to Au, Pb, and Zn. Both wallrock alteration patterns and secondary dispersion trails remain preserved in the quartz concentrates, even in deeply weathered terrain. Results of 14 case histories of various types of gold and base metal deposits are compared. © 2005 AAG/ Geological Society of London.

Item Details

Item Type:Refereed Article
Research Division:Earth Sciences
Research Group:Geochemistry
Research Field:Exploration Geochemistry
Objective Division:Mineral Resources (excl. Energy Resources)
Objective Group:Mineral Exploration
Objective Field:Precious (Noble) Metal Ore Exploration
Author:Van Moort, JC (Dr Jan Van Moort)
ID Code:39080
Year Published:2005
Deposited By:Earth Sciences
Deposited On:2005-08-01
Last Modified:2012-03-05
Downloads:0

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