Analytical method: UNKNOWN
| Technique | UNKNOWN |
|---|---|
| Material | WHOLE ROCK |
| Mineral | none |
| Institution | US GEOLOGICAL SURVEY, USA |
| Reference | Ekren, E B (1985) Eocene cauldron-related volcanic events in the Challis Quadrangle. U. S. Geological Survey Bulletin, Report: B 1658 A-S, pp.43-58, 1985 |
Samples analysed with this method
Y-54-582, 83L57, AAS-262, L-64-2639, L-62-2150, Y-54-565, L-56-1361, Y-54-597, Y-54-598, 83GM105, 83GM101, 83L69, L-61-229, L-74-7, TM-71-2, Y-54-599, 83L64, Y-54-599A, H-54-63, L-61-106