Sample GAD-3
NavDat sample number 12144 · ANDESITE
Sample
| Sample ID | GAD-3 |
|---|---|
| Rock name | ANDESITE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
| Comment | medium gray, light gray-mottled, rarely microporphyritic with olivine in mircovesicular intergranular matrix of clinopyroxene and calcic plagioclase |
Location
| Latitude | 40.4867 |
|---|---|
| Longitude | -120.782 |
| State / province | California |
| Volcanic field | Walker Lane |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 3.9 | 3.7 | 4.1 |