Sample NR-1
NavDat sample number 6672 · RHYOLITE
Sample
| Sample ID | NR-1 |
|---|---|
| Rock name | RHYOLITE |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Collected by | author |
| Comment | dense white and pink flow-banded rhyolite with sparse biotite phenocrysts |
Location
| Latitude | 45.6183 |
|---|---|
| Longitude | -111.583 |
| Location | ridge on S side of Red Mtn; 10 km NE of Norris, Madison County |
| State / province | Montana |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 52.7 | 50.7 | 54.7 |
Analyses
No chemical analyses are stored for this sample.