Contrasting fluid systems, chemical gradients and controls on large-tonnage, high-grade Au deposits, Eastern Goldfields Province, Yilgarn Craton, Western Australia

被引：0

作者：

Walshe, JL ^{[1
]}

Halley, SW ^{[1
]}

Hall, GA ^{[1
]}

Kitto, P ^{[1
]}

机构：

[1] CSIRO, Div Explorat & Min, Perth, WA, Australia

来源：

MINERAL EXPLORATION AND SUSTAINABLE DEVELOPMENT, VOLS 1 AND 2 | 2003年

关键词：

contrasting fluids; redox; mixing; gradients; gold;

D O I：

暂无

中图分类号：

P57 [矿物学];

学科分类号：

070901 ;

摘要：

Large-tonnage, high-grade gold deposits in the Eastern Goldfields Province result from the interplay of two chemically contrasting fluid systems. Oxidized magmatic hydrothermal fluids (brines and vapours) were sourced from 2665-2650 Ma mafic and syenitic granite-magmas. Chemically contrasting, anhydrous and reduced fluids, composed dominantly of H-2 - H2S +/- CH4, were sourced from the deep crust/mantle. An emerging understanding of the architectural and geodynamic controls on the interaction of the two fluid systems is providing a conceptual framework to aid exploration for major gold resources.

引用

页码：827 / 830

页数：4

共 4 条

[1] Extensional emplacement of a high-grade granite gneiss complex into low-grade greenstones, eastern goldfields, Yilgarn Craton, Western Australia
Swager, CP
Nelson, DR
[J]. PRECAMBRIAN RESEARCH, 1997, 83 (1-3) : 203 - 219
[2] Gold deposits of the bardoc tectonic zone: a distinct style of orogenic gold in the archaean eastern goldfields province, Yilgarn Craton, Western Australia
Morey, A. A.
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Davidson, G. J.
[J]. AUSTRALIAN JOURNAL OF EARTH SCIENCES, 2007, 54 (06) : 783 - 800
[3] Distribution of orogenic gold deposits in relation to fault zones and gravity gradients: targeting tools applied to the Eastern Goldfields, Yilgarn Craton, Western Australia
Bierlein, Frank P.
Murphy, Finbarr C.
Weinberg, Roberto F.
Lees, Terry
[J]. MINERALIUM DEPOSITA, 2006, 41 (02) : 107 - 126
[4] Distribution of orogenic gold deposits in relation to fault zones and gravity gradients: targeting tools applied to the Eastern Goldfields, Yilgarn Craton, Western Australia
Frank P. Bierlein
Finbarr C. Murphy
Roberto F. Weinberg
Terry Lees
[J]. Mineralium Deposita, 2006, 41 : 107 - 126

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