Undiscovered deposits of gold, silver, copper, lead, and zinc in the conterminous United States
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Undiscovered deposits of gold, silver, copper, lead, and zinc in the conterminous United States by Richard B McCammon

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Published by U.S. Dept. of the Interior, U.S. Geological Survey in [Reston, Va.?] .
Written in English

Subjects:

  • Ore deposits -- United States

Book details:

Edition Notes

SeriesFS -- 189-95, Fact sheet (Geological Survey (U.S.)) -- FS-95-189
ContributionsGeological Survey (U.S.)
The Physical Object
Pagination[4] p. :
ID Numbers
Open LibraryOL13620813M
OCLC/WorldCa37247388

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The U.S. Geological Survey (USGS) conducted a scientific study to estimate, for the first time, the amount of undiscovered gold, silver, copper, lead, and zinc that could be present in yet-to-be-discovered mineral deposits 1 kilometer or less below the surface of the ground of the conterminous United States. Get this from a library! Undiscovered deposits of gold, silver, copper, lead, and zinc in the conterminous United States.. [Richard B McCammon; Geological Survey (U.S.)]. ISBN: OCLC Number: Notes: Title from title screen. USGS and Circular were originally published under the titles: "Data base for a national mineral-resource assessment of undiscovered deposits of gold, silver, copper, lead, and zinc in the conterminous United States" and " assessment of undiscovered deposits of gold, silver, copper, lead, and. The purpose of this report is to assess the potential for undiscovered vein and replacement deposits of gold, silver, copper, lead, zinc, manganese, and tungsten in the Butte 1 °X2° quadrangle. This quadrangle, in west-central Montana, is one of the most mineralized and productive regions in the United States. Its mining districts, including the world famous Butte or Summit Valley district.

Past production from the largest identified resources of gold, silver, copper, lead, and zinc is estimated to be 12, t of gold, , t of silver, 91, kt of copper, 41, kt of lead, kt of zinc. These deposits account for about 99 percent of cumulative domestic production in the United : U.S. Department of the Interior. Assessment of undiscovered deposits of gold, silver, copper, lead, and zinc in the United States.   Estimates of the number of undiscovered deposits offer a unique perspective on the nation's undiscovered mineral resources. As part of the assessment of undiscovered deposits of gold, silver, copper, lead, and zinc, estimates of the number of deposits were made for of the permissive tracts delineated in 19 assessment regions of the by: 3.   Estimates of the number of undiscovered deposits on a statewide basis offer a different perspective on the nation's undiscovered resources of gold, silver, copper, lead, and zinc. Mean estimates of the number of undiscovered deposits statewide were extracted from the estimates of undiscovered deposits nationwide. More than 50 undiscovered deposits are estimated to occur in Cited by: 2.

Undiscovered deposits of gold, silver, copper, lead, and zinc in the conterminous United States; ; FS; ; McCammon, Richard B. Filter Total Items: 6 Select Type. gold, silver, copper, lead, and zinc in the United States are accounted for by deposits that originally contained at least 2 metric tonnes (t) gold, 85 t silver, 50, t copper, 30, t lead, or 50, t zinc. The U.S. Geological Survey, beginning with the NationalCited by: Approximately 99 percent of past production and remaining identified resources of gold, silver, copper, lead, and zinc in the United States are accounted for by deposits that originally contained. Approximately 99 percent of past production and remaining identified resources of gold, silver, copper, lead, and zinc in the United States are accounted for by deposits that originally contained at least 2 metric tonnes (t) gold, 85 t silver, 50, t copper, 30, t lead, or 50, t by: