Sample GAD-5
NavDat sample number 12145 · DACITE
Sample
| Sample ID | GAD-5 |
|---|---|
| Rock name | DACITE |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Comment | White to medium gray, abundantly finely porphyritic and glomeroporphyritic with sodic pyroxene, and biotite set in pilotaxitic matrix |
Location
| Latitude | 40.43 |
|---|---|
| Longitude | -120.718 |
| State / province | California |
| Volcanic field | Walker Lane |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 11.4 | 11.1 | 11.7 |