Sample MDH7-684/687
NavDat sample number 14611 · GRANODIORITE
Sample
| Sample ID | MDH7-684/687 |
|---|---|
| Rock name | GRANODIORITE |
| Rock type | PLUTONIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
| Comment | Altered granodiorite |
Location
| Latitude | 46.357 |
|---|---|
| Longitude | -122.081 |
| Location | Mt. St. Helens |
| State / province | Washington |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 16.9 | 16.4 | 17.4 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| K2O | 10.52 | WT% | AAS |