Sample 202338
NavDat sample number 50124 · SYENITE
Sample
| Sample ID | 202338 |
|---|---|
| Rock name | SYENITE |
| Rock type | PLUTONIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
| Collected by | Harlan |
| Comment | sill |
Location
| Latitude | 46.9943 |
|---|---|
| Longitude | -110.448 |
| Location | Ibex Mountain Sill |
| State / province | Montana |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 50.5 | 49.9 | 51.1 |
Analyses
No chemical analyses are stored for this sample.
References
- Harlan, Stephen S (2006) (super 40) Ar/ (super 39) Ar dates from alkaline intrusions in thenorthern Crazy Mountains, Montana; implications for the timing andduration of alkaline magmatism in the central Montana alkalicprovince. Rocky Mountain Geology, vol.41, no.1, pp.45-55, Jun 2006 doi:10.2113/gsrocky.41.1.45