Sample 81-189
NavDat sample number 36181 · RHYOLITE
Sample
| Sample ID | 81-189 |
|---|---|
| Rock name | RHYOLITE |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Comment | devitrified fine groundmass with relict shard structure; intercalated with crossbedded tuffaceous volcanic sandstone beds |
Location
| Latitude | 44.9342 |
|---|---|
| Longitude | -113.125 |
| State / province | Montana |
| Volcanic field | Challis Volcanic Group |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 46.04 | 45.89 | 46.19 |
Analyses
No chemical analyses are stored for this sample.