Sample 87-63
NavDat sample number 36186 · RHYOLITE
Sample
| Sample ID | 87-63 |
|---|---|
| Rock name | RHYOLITE |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Comment | aphanitic glass groundmass with faint relict shard structure |
Location
| Latitude | 44.8311 |
|---|---|
| Longitude | -113.083 |
| State / province | Montana |
| Volcanic field | Challis Volcanic Group |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 45.7 | 45.56 | 45.84 |
Analyses
No chemical analyses are stored for this sample.