Gold in porphyry copper systems /
Gold in porphyry copper systems /
by Edwin W.Tooker
- Washington, D. C. : United States Goverment Printing office, 1990
- 55 p. : il. ; 28 cm.
- Geology and resources of gold in the united states / ch.E(U. S. Geological survey Bulletin ; 1857) .
Includes bibliographical references
Golg ores--West (United States)
Copper ores--West (United States)
Geology--West (United States)
Includes bibliographical references
Golg ores--West (United States)
Copper ores--West (United States)
Geology--West (United States)
