Comparison of the triangular, polygonal, and a statistical method of computing grade and tonnage of ore for the Silver Bell Oxide porphyry copper deposit /
by Richard F. Hewlett.

Description

Main Author

Hewlett, Richard F.

Related Names

University of Arizona. College of Mines.
Bear Creek Mining Company.
United States. Bureau of Mines.

Language(s)

English

Published

[Washington, D.C.] : U.S. Dept. of Interior, Bureau of Mines, [1970]

Subjects

Copper ores > Copper ores / Grading.

Note

"January 1970"--Cover.
Based on work done in cooperation with the Bear Creek Mining Co., and on a fellowship agreement with the College of Mines, University of Arizona.

Physical Description

ii, 33 p. : ill., maps ; 26 cm.

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