Analytical method: UNKNOWN
| Technique | UNKNOWN |
|---|---|
| Material | WHOLE ROCK |
| Mineral | none |
| Institution | Unknown, Unknown, USA |
| Reference | Pederson, Joel; Karlstrom, Karl; Sharp, Warren; McIntosh, William (2002) Differential incision of the Grand Canyon related to Quaternary faulting; constraints from U-series and Ar/Ar dating. Geology Boulder, vol.30, no.8, pp.739-742, Aug 2002 |