Sample S78-A1-E209A
NavDat sample number 14593 · ANDESITE
Sample
| Sample ID | S78-A1-E209A |
|---|---|
| Rock name | ANDESITE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
| Comment | Hornblende andesite |
Location
| Latitude | 46.4505 |
|---|---|
| Longitude | -122.223 |
| Location | Mt. St. Helens |
| State / province | Washington |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 27.1 | 25.1 | 29.1 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| K2O | 0.27 | WT% | AAS |