Sample BL-3-891
NavDat sample number 5885 · PHONOLITE
Sample
| Sample ID | BL-3-891 |
|---|---|
| Rock name | PHONOLITE |
| Rock type | PLUTONIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
| Comment | from drill core at 891 ft depth |
Location
| Latitude | 44.3833 |
|---|---|
| Longitude | -103.817 |
| State / province | South Dakota |
| Volcanic field | Northern Cutting Stock, Black Hills Tertiary igneous province |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 50 | 45 | 55 |