Analytical method: RAPID_ROCK
| Technique | RAPID_ROCK |
|---|---|
| Material | WHOLE ROCK |
| Mineral | none |
| Institution | U.S. GEOLOGICAL SURVEY, MENLO PARK DIVISION, MENLO PARK, CA 94025, USA |
| Reference | Chapin, C E; Lowell, G R (1979) Primary and secondary flow structures in ash-flow tuffs of the Gribbles Run paleovalley, central Colorado. Special Paper - Geological Society of America. 180, Pages 137-154. 1979. |