Sample s_115379-1-4
NavDat sample number 9256 · RHYOLITE
Sample
| Sample ID | s_115379-1-4 |
|---|---|
| Rock name | RHYOLITE |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Comment | PUMICE, TRANSIENT DOME PHASE |
Location
| Latitude | 46.2 |
|---|---|
| Longitude | -122.18 |
| Location | CASCADES / HIGH CASCADES / NORTHWESTERN CASCADES / MOUNT ST. HELENS / PACIFIC OCEAN |
| State / province | WASHINGTON |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| -0.00198 | 0 | -0.002178 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 75.99 | WT% | EPMA | |
| TIO2 | 0.43 | WT% | EPMA | |
| AL2O3 | 12.54 | WT% | EPMA | |
| FEOT | 1.8 | WT% | EPMA | |
| CAO | 1.31 | WT% | EPMA | |
| MGO | 0.26 | WT% | EPMA | |
| MNO | 0.04 | WT% | EPMA | |
| K2O | 2.57 | WT% | EPMA | |
| NA2O | 3.63 | WT% | EPMA | |
| SIO2 | 69.23 | WT% | EPMA | |
| TIO2 | 0.37 | WT% | EPMA | |
| AL2O3 | 13.05 | WT% | EPMA | |
| FEOT | 2.17 | WT% | EPMA | |
| CAO | 1.69 | WT% | EPMA | |
| MGO | 0.58 | WT% | EPMA | |
| MNO | 0.05 | WT% | EPMA | |
| K2O | 2.28 | WT% | EPMA | |
| NA2O | 3.91 | WT% | EPMA | |
| SIO2 | 62.7 | WT% | WET | |
| TIO2 | 0.66 | WT% | WET | |
| AL2O3 | 18.04 | WT% | WET | |
| FE2O3 | 1.6 | WT% | WET | |
| FEOT | 4.22 | WT% | WET | |
| FEO | 2.78 | WT% | WET | |
| CAO | 5.31 | WT% | WET | |
| MGO | 1.97 | WT% | WET | |
| MNO | 0.07 | WT% | WET | |
| K2O | 1.22 | WT% | WET | |
| NA2O | 4.47 | WT% | WET | |
| P2O5 | 0.1 | WT% | WET |