Analytical method: UNKNOWN
| Technique | UNKNOWN |
|---|---|
| Material | WHOLE ROCK |
| Mineral | none |
| Institution | U.S. GEOLOGICAL SURVEY, MENLO PARK DIVISION, MENLO PARK, CA 94025, USA |
| Reference | Staatz, M H (1983) U. S. Geological Survey Professional Paper, Report: P 1049-D, D1-D52 pp., 1983 |