Sample s_USNM 115379-32-1
NavDat sample number 9253 · RHYOLITE
Sample
| Sample ID | s_USNM 115379-32-1 |
|---|---|
| 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 | 70.8 | WT% | EPMA | |
| TIO2 | 0.39 | WT% | EPMA | |
| AL2O3 | 14.46 | WT% | EPMA | |
| FEOT | 2.4 | WT% | EPMA | |
| CAO | 2.5 | WT% | EPMA | |
| MGO | 0.49 | WT% | EPMA | |
| K2O | 1.9 | WT% | EPMA | |
| NA2O | 4.59 | WT% | EPMA | |
| P2O5 | 0.08 | WT% | EPMA | |
| SIO2 | 67.91 | WT% | EPMA | |
| TIO2 | 0.35 | WT% | EPMA | |
| AL2O3 | 14.14 | WT% | EPMA | |
| FEOT | 2.41 | WT% | EPMA | |
| CAO | 2.17 | WT% | EPMA | |
| MGO | 0.69 | WT% | EPMA | |
| K2O | 1.91 | WT% | EPMA | |
| NA2O | 2.58 | WT% | EPMA | |
| P2O5 | 0.12 | WT% | EPMA | |
| SIO2 | 63.58 | WT% | WET | |
| TIO2 | 0.63 | WT% | WET | |
| AL2O3 | 17.8 | WT% | WET | |
| FE2O3 | 1.75 | WT% | WET | |
| FEOT | 4.01 | WT% | WET | |
| FEO | 2.44 | WT% | WET | |
| CAO | 4.96 | WT% | WET | |
| MGO | 1.83 | WT% | WET | |
| MNO | 0.06 | WT% | WET | |
| K2O | 1.25 | WT% | WET | |
| NA2O | 4.58 | WT% | WET | |
| P2O5 | 0.11 | WT% | WET |