Sample TAD-5
NavDat sample number 12129 · ANDESITE
Sample
| Sample ID | TAD-5 |
|---|---|
| Rock name | ANDESITE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
| Comment | flow; white to light gray, moderately microporphyritic with olivine in subophitic groundmass of calcic plagioclase and augite. |
Location
| Latitude | 40.7983 |
|---|---|
| Longitude | -120.867 |
| State / province | California |
| Volcanic field | Walker Lane |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 7.4 | 7.1 | 7.7 |