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Sample BRM-9
NavDat sample number 22604 · TONALITE
Sample
| Sample ID | BRM-9 |
|---|
| Rock name | TONALITE |
|---|
| Rock type | PLUTONIC |
|---|
| Composition | INTERMEDIATE |
|---|
| Material | IGNEOUS |
|---|
| Comment | medium-grained, with some primary? muscovite; gneissic |
Location
| Latitude | 46.14 |
|---|
| Longitude | -115.602 |
|---|
| Location | Lochsa River |
|---|
| State / province | Idaho |
|---|
| Volcanic field | Idaho Batholith, Bitterroot Lobe |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
| 94 |
|
92.6 |
95.4 |
|
|
Analyses
Mineral
| Item | Value | Std. dev. | Unit | Method |
| PB206_PB204 | 19.33 | | | TIMS |
| PB207_PB204 | 15.677 | | | TIMS |
| PB208_PB204 | 39.042 | | | TIMS |