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A Neoproterozoic epithermal gold deposit—The Haile gold mine, South Carolina, USA

By
James M. Berry
James M. Berry
Oceanagold Exploration, 6988 Snowy Owl Road, Kershaw, South Carolina 29067, USA
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Reid M. Mobley
Reid M. Mobley
Oceanagold Exploration, 6988 Snowy Owl Road, Kershaw, South Carolina 29067, USA
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Kenneth A. Gillon
Kenneth A. Gillon
Oceanagold Exploration, 6988 Snowy Owl Road, Kershaw, South Carolina 29067, USA
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Gene M. Yogodzinski
Gene M. Yogodzinski
Department of Earth and Ocean Sciences, University of South Carolina, 701 Sumter St., EWSC617, Columbia, South Carolina 29208, USA
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C. Cole Bates
C. Cole Bates
Oceanagold Exploration, 6988 Snowy Owl Road, Kershaw, South Carolina 29067, USA
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Published:
January 01, 2016

Abstract

The Haile gold mine is located in southern Lancaster County, South Carolina, near the town of Kershaw. Gold was discovered at the site in 1827, and four periods of mining have yielded 360,000 ounces of gold. The mine is located between the past producing Ridgeway and Brewer mines that, when all are combined, constitute a significant amount of historical gold production in the southeastern United States. These mines are hosted within Neoproterozoic to lower Cambrian Carolina terrane rocks and are dominated by volcanic and epiclastic units that have experienced greenschist facies metamorphism. Saprolitic weathering is present in the near-surface portions of the deposit and is locally covered by Cretaceous-aged Coastal Plain sediments. The gold mineralization at the Haile mine is hosted within silicified meta-sediments containing fine-grained disseminated pyrite and pyrrhotite and is a replacement type-epithermal deposit. Re-Os ages from molybdenite associated with the mineralization indicate that the deposit formed shortly after major, arc-related volcanic activity.

Haile currently has a measured and indicated resource of 4.03 million ounces at an average grade of 1.77 g/t Au with an additional inferred resource of 801,000 ounces at an average grade of 1.24 g/t Au. Included in the resource is a reserve of 2.02 million ounces of gold at an average grade of 2.06 g/t. Mine construction began in May 2015, and gold production is expected by the end of 2016. The construction cost is expected to be US$380 million. Ore will be extracted from eight open pits with mill extraction and the current mine life is 14 years.

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Contents

GSA Field Guide

Gold, Structures, and Landforms in Central South Carolina—Field Guides for the 2016 GSA Southeastern Section Meeting, Columbia, South Carolina

William R. Doar, III
William R. Doar, III
South Carolina Department of Natural Resources Geological Survey, 5 Geology Road, Columbia, South Carolina 29212, USA
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Geological Society of America
Volume
42
ISBN electronic:
9780813756424
Publication date:
January 01, 2016

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