Sample s_USNM 115379-8-1
NavDat sample number 9252 · RHYOLITE
Sample
| Sample ID | s_USNM 115379-8-1 |
|---|---|
| Rock name | RHYOLITE |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Comment | PUMICE LAPILLUS |
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 | 72.66 | WT% | EPMA | |
| TIO2 | 0.38 | WT% | EPMA | |
| AL2O3 | 14.86 | WT% | EPMA | |
| FEOT | 2.41 | WT% | EPMA | |
| CAO | 2.64 | WT% | EPMA | |
| MGO | 0.54 | WT% | EPMA | |
| K2O | 2.04 | WT% | EPMA | |
| NA2O | 4.68 | WT% | EPMA | |
| P2O5 | 0.09 | WT% | EPMA | |
| SIO2 | 67.96 | WT% | EPMA | |
| TIO2 | 0.31 | WT% | EPMA | |
| AL2O3 | 14.29 | WT% | EPMA | |
| FEOT | 2.05 | WT% | EPMA | |
| CAO | 2.52 | WT% | EPMA | |
| MGO | 0.54 | WT% | EPMA | |
| K2O | 1.89 | WT% | EPMA | |
| NA2O | 3.27 | WT% | EPMA | |
| P2O5 | 0.09 | WT% | EPMA | |
| SIO2 | 64.02 | WT% | WET | |
| TIO2 | 0.62 | WT% | WET | |
| AL2O3 | 17.69 | WT% | WET | |
| FE2O3 | 1.51 | WT% | WET | |
| FEOT | 3.96 | WT% | WET | |
| FEO | 2.6 | WT% | WET | |
| CAO | 4.91 | WT% | WET | |
| MGO | 1.8 | WT% | WET | |
| MNO | 0.06 | WT% | WET | |
| K2O | 1.29 | WT% | WET | |
| NA2O | 4.47 | WT% | WET | |
| P2O5 | 0.1 | WT% | WET |