Tools
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.
| Main Author: | Hewlett, Richard F. |
|---|---|
| Language(s): | English |
| Published: |
[Washington, D.C.] : U.S. Dept. of Interior, Bureau of Mines, [1970] |
| Subjects: |
Copper ores
> Grading.
|
| Note: |
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. "January 1970"--Cover. |
| Physical Description: |
ii, 33 p. :
ill., maps ;
26 cm.
|
| Original Format: | Book |
| Locate a Print Version: |
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