Aqueous geochemistry of the "other" pit lake in Butte, Montana, USA

被引：0

作者：

McGivern, Amber L. ^{[1
]}

Gammons, Christopher H. ^{[1
]}

Duaime, Terence E. ^{[2
]}

机构：

[1] Montana Tech Univ, Dept Geol Engn, 1300 W Pk St, Butte, MT 59701 USA

[2] Montana Bur Mines & Geol, Butte, MT 59701 USA

来源：

RELIABLE MINE WATER TECHNOLOGY: PROCEEDINGS OF THE INTERNATIONAL MINE WATER ASSOCIATION ANNUAL CONFERENCE 2013, VOLS I & II | 2013年

关键词：

neutral mine drainage; trace metals; pit lake; geochemistry; mineral solubility;

D O I：

暂无

中图分类号：

TD [矿业工程];

学科分类号：

0819 ;

摘要：

The Continental porphyry Cu-Mo mine, located 2 km east of the famous Berkeley Pit lake of Butte, Montana, contains two small lakes that vary in size depending on mining activity. In contrast to the acidic Berkeley Pit lake, the Continental Pit waters have near-neutral pH and relatively low metal concentrations. The main reason is geological: whereas the Berkeley Pit mined highly-altered granite rich in pyrite with no neutralizing potential, the Continental Pit is mining weakly-altered granite with lower pyrite concentrations and up to 1-2 % hydrothermal calcite. The Continental Pit waters are near equilibrium with a number of carbonate, sulfate, and molybdate minerals.

引用

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页码：1041 / 1046

页数：6

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