Sample USGSD-612-1
NavDat sample number 7970 · RHYODACITE
Sample
| Sample ID | USGSD-612-1 |
|---|---|
| Rock name | RHYODACITE |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Comment | pilotaxitic texture; labradorite, augite, hypersthe, olivine, opaques, and glass |
Location
| Latitude | 45.6233 |
|---|---|
| Longitude | -112.822 |
| Location | from isolated outcrop; Beaverhead County |
| State / province | Montana |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 27.3 | 26.3 | 28.3 |
Analyses
No chemical analyses are stored for this sample.