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Blue Star Subdistrict Zoned Alteration Mineralogy and Gold Mineralization, Eureka County, Nevada

By
Cindy L. Williams
Cindy L. Williams
Newmont Exploration Limited - Carlin Trend P.O. Box 669 Carlin, Nevada 89822-0669
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Published:
January 01, 1997

Abstract

The Blue Star subdistrict in the Carlin Trend, Nevada, includes multiple gold mines with 2 million ounces in reserve and past production totaling 3. 9 million ounces. The deposits are characterized by zoned alteration mineralogy and gold grades. From orebody centers outward the zones include: 1) a silicified core with erratic gold grade; 2) adjacent mill-grade (>0.050 oz/st Au) intense quartz-sericite-pyrite alteration; 3) enveloping leach-grade (0.006 to 0.050 oz/st Au) weaker sericite-kaolinite-quartz-pyrite alteration; 4) surrounding decarbonatized and intensely argillized waste and leach grade ore; 5) pervasively decarbonatized waste rock; and 6) peripheral waste with weak decarbonatization

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Contents

Society of Economic Geologists Guidebook Series

Carlin-Type Gold Deposits Field Conference

Peter Vikre
Peter Vikre
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Tommy B. Thompson
Tommy B. Thompson
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Keith Bettles
Keith Bettles
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Odin Christensen
Odin Christensen
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Ron Parratt
Ron Parratt
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Society of Economic Geologists
Volume
28
ISBN electronic:
9781934969816
Publication date:
January 01, 1997

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