Analytical method: INAA
| Technique | INAA |
|---|---|
| Material | WHOLE ROCK |
| Mineral | none |
| Institution | WASHINGTON UNIVERSITY, ST. LOUIS, MO, USA |
| Reference | Fridrich, Christopher John (1987) The Grizzly Peak Cauldron, Colorado; structure and petrology of a deeply dissected resurgent ash-flow caldera. |