Analytical method: UNKNOWN
| Technique | UNKNOWN |
|---|---|
| Material | WHOLE ROCK |
| Mineral | none |
| Institution | USGS DENVER, DENVER, CO, USA |
| Reference | Kellogg, K S; Harlan, S S; Mehnert, H H; Snee, L W; Pierce, K L; Hackett, W R; Rodgers, D W (1994) U. S. Geological Survey Bulletin, Report: B 2091, 18 pp., 1994 |