Sample S78-C5-E123A
NavDat sample number 14602 · ANDESITE
Sample
| Sample ID | S78-C5-E123A |
|---|---|
| Rock name | ANDESITE |
| Rock type | PLUTONIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
| Comment | Hornblende andesite dike |
Location
| Latitude | 46.2897 |
|---|---|
| Longitude | -122.091 |
| Location | Mt. St. Helens |
| State / province | Washington |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 19.9 | 19.2 | 20.6 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| K2O | 0.478 | WT% | AAS |