Sample No Sample Name
NavDat sample number 29606 · RHYOLITE
Sample
| Sample ID | No Sample Name |
|---|---|
| Rock name | RHYOLITE |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Comment | rhyolitic obsidian |
Location
| Latitude | 38.5293 |
|---|---|
| Longitude | -122.486 |
| Location | Napa Glass Mountain |
| State / province | California |
| Volcanic field | Sonoma Volcanic Field |
| Location comment | plug underlies Little Glass Mountain |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 6 | 4 | 8 |