Campus Units

Geological and Atmospheric Sciences

Document Type

Article

Publication Version

Published Version

Publication Date

12-2009

Journal or Book Title

Episodes

Volume

32

Issue

4

First Page

249

Last Page

263

DOI

10.18814/epiiugs/2009/v32i4/002

Abstract

Gold-(silver)-telluride (selenide) ores occur as epithermal orogenic and intrusion related deposits. Although Te and Se are chalcophile elements and share geochemical affinity with Au, formation of selenides and other elements Ag-Au require acidic or reducing environments. The thermodynamic stability conditions for Au and Agtellurides and native tellurium indicate an epithermal environment. Analysis of mineral paragenensis, textures and compositional variation in tellurides/selenides suggest petrogenetic processes involving interaction with fluids leading to Au scavenging and entrapment in tellurides, changes in chemistry/rates of fluid infiltration and attaining equilibrium in a given assemblage.

Comments

This article is published as Cook, Nigel J., Cristiana L. Ciobanu, Paul G. Spry, and Panagiotis Voudouris. "Understanding gold-(silver)-telluride-(selenide) mineral deposits." Episodes Journal of International Geoscience 32, no. 4 (2009): 249-263. doi:10.18814/epiiugs/2009/v32i4/002.

Creative Commons License

Creative Commons Attribution-Noncommercial 4.0 License
This work is licensed under a Creative Commons Attribution-Noncommercial 4.0 License

Copyright Owner

International Union of Geological Sciences

Language

en

File Format

application/pdf

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