Sample IG 25
NavDat sample number 11644 · GRANITE
Sample
| Sample ID | IG 25 |
|---|---|
| Rock name | GRANITE |
| Rock type | PLUTONIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Comment | medium grained with rare k-feldspar megacrysts |
Location
| Latitude | 46.5117 |
|---|---|
| Longitude | -114.342 |
| State / province | Montana |
| Volcanic field | Idaho batholith, Bitterroot lobe |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 62 | 60 | 80 |