Sample 91
NavDat sample number 3527 · GABBRO
Sample
| Sample ID | 91 |
|---|---|
| Rock name | GABBRO |
| Rock type | PLUTONIC |
| Composition | MAFIC |
| Material | IGNEOUS |
| Comment | dike intrusion of alk-gabbro |
Location
| Latitude | 47.2297 |
|---|---|
| Longitude | -111.761 |
| Location | roadcut on I-15, 0.1 miles north of benchmark |
| State / province | Montana |
| Volcanic field | Adel Mountain Volcanics |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 74 | 73 | 76 |