Geologic and grade-tonnage information on Tertiary epithermal precious- and base-metal vein districts associated with volcanic rocks

Mosier, Dan L.; Menzie, W. David; Kleinhampl, Frank J.

Abstract:

Data on grades, tonnages, and geology of selected Tertiary epithermal precious- and base-metal vein districts associated with volcanic rocks were tabulated for ease of examination and comparison of characteristics between districts. There are 215 districts listed, with a cumulative tonnage of 709 million metric tons and average grades of 4.7 g/t Au, 224 g/t Ag, 0.16 percent Cu, 0.55 percent Pb, and 0.83 percent Zn, representing about 60 percent of world districts.

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USGS Numbered Series

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35288

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Mosier, Dan L.; Menzie, W. David; Kleinhampl, Frank J.

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ENGLISH

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iii, 39 p. :maps ;28 cm.

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U.S. G.P.O.,

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Bulletin

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1666

Citation Search Results Text:

Geologic and grade-tonnage information on Tertiary epithermal precious- and base-metal vein districts associated with volcanic rocks; 1986; B; 1666; Mosier, Dan L.; Menzie, W. David; Kleinhampl, Frank J.