Sample W-186981
NavDat sample number 6576 · DACITE
Sample
| Sample ID | W-186981 |
|---|---|
| Rock name | DACITE |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
Location
| Latitude | 46.2 |
|---|---|
| Longitude | -122.18 |
| State / province | Washington |
| Location comment | Sugar Bowl dome |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 0 | -0.00103 | -0.00063 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 68.98 | WT% | RAPID_ROCK | |
| AL2O3 | 16.31 | WT% | RAPID_ROCK | |
| FE2O3 | 3.3 | WT% | RAPID_ROCK | |
| MGO | 0.89 | WT% | RAPID_ROCK | |
| CAO | 3 | WT% | RAPID_ROCK | |
| NA2O | 5 | WT% | RAPID_ROCK | |
| K2O | 1.8 | WT% | RAPID_ROCK | |
| TIO2 | 0.41 | WT% | RAPID_ROCK | |
| P2O5 | 0.15 | WT% | RAPID_ROCK | |
| MNO | 0.06 | WT% | RAPID_ROCK |