Database of significant deposits of gold, silver, copper, lead, and zinc in the United States

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Description It has long been recognized that the largest mineral deposits contain most of the known mineral endowment (Singer and DeYoung, 1980). Sometimes called giant or world-class deposits, these largest deposits account for a very large share of historic and cur
Originators Long, Keith R.; DeYoung, John H. Jr.; and Ludington, Stephen D.
Publication U.S. Geological Survey Open-File Report 98-206

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