Sample s_115418-1-1
NavDat sample number 9261 · RHYOLITE
Sample
| Sample ID | s_115418-1-1 |
|---|---|
| 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 | 77.82 | WT% | EPMA | |
| TIO2 | 0.38 | WT% | EPMA | |
| AL2O3 | 11.79 | WT% | EPMA | |
| FEOT | 1.53 | WT% | EPMA | |
| CAO | 0.81 | WT% | EPMA | |
| MGO | 0.19 | WT% | EPMA | |
| K2O | 2.88 | WT% | EPMA | |
| NA2O | 3.15 | WT% | EPMA | |
| P2O5 | 0.05 | WT% | EPMA | |
| SIO2 | 71.37 | WT% | EPMA | |
| TIO2 | 0.41 | WT% | EPMA | |
| AL2O3 | 11.94 | WT% | EPMA | |
| FEOT | 2.63 | WT% | EPMA | |
| CAO | 1.24 | WT% | EPMA | |
| MGO | 0.54 | WT% | EPMA | |
| K2O | 2.29 | WT% | EPMA | |
| NA2O | 3.74 | WT% | EPMA | |
| P2O5 | 0.12 | WT% | EPMA | |
| SIO2 | 63.08 | WT% | WET | |
| TIO2 | 0.64 | WT% | WET | |
| AL2O3 | 17.63 | WT% | WET | |
| FEOT | 4.4 | WT% | WET | |
| CAO | 5.31 | WT% | WET | |
| MGO | 2.16 | WT% | WET | |
| MNO | 0.08 | WT% | WET | |
| K2O | 1.23 | WT% | WET | |
| NA2O | 4.61 | WT% | WET | |
| P2O5 | 0.11 | WT% | WET |