Analytical method: UNKNOWN
| Technique | UNKNOWN |
|---|---|
| Material | WHOLE ROCK |
| Mineral | none |
| Comment | total Fe as FeOT |
| Reference | Tsai, Heng (1992) Rb-Sr isotope systematics of the Burro Mesa Rhyolite, Big Bend National Park, Texas. |
| Technique | UNKNOWN |
|---|---|
| Material | WHOLE ROCK |
| Mineral | none |
| Comment | total Fe as FeOT |
| Reference | Tsai, Heng (1992) Rb-Sr isotope systematics of the Burro Mesa Rhyolite, Big Bend National Park, Texas. |