Sample s_115377-1
NavDat sample number 9258 · PYROCLASTIC-FALL
Sample
| Sample ID | s_115377-1 |
|---|---|
| Rock name | PYROCLASTIC-FALL |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Comment | LAPILLUS, 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 | 77.55 | WT% | EPMA | |
| TIO2 | 0.4 | WT% | EPMA | |
| AL2O3 | 12.7 | WT% | EPMA | |
| FEOT | 1.69 | WT% | EPMA | |
| CAO | 1.22 | WT% | EPMA | |
| MGO | 0.24 | WT% | EPMA | |
| K2O | 2.73 | WT% | EPMA | |
| NA2O | 2.56 | WT% | EPMA | |
| P2O5 | 0.09 | WT% | EPMA | |
| SIO2 | 70.67 | WT% | EPMA | |
| TIO2 | 0.47 | WT% | EPMA | |
| AL2O3 | 12.71 | WT% | EPMA | |
| FEOT | 2.35 | WT% | EPMA | |
| CAO | 1.58 | WT% | EPMA | |
| MGO | 0.61 | WT% | EPMA | |
| K2O | 2.38 | WT% | EPMA | |
| NA2O | 3.67 | WT% | EPMA | |
| P2O5 | 0.12 | WT% | EPMA | |
| SIO2 | 62.86 | WT% | WET | |
| TIO2 | 0.68 | WT% | WET | |
| AL2O3 | 17.67 | WT% | WET | |
| FE2O3 | 1.6 | WT% | WET | |
| FEOT | 4.55 | WT% | WET | |
| FEO | 3.11 | WT% | WET | |
| CAO | 5.35 | WT% | WET | |
| MGO | 2.29 | WT% | WET | |
| MNO | 0.08 | WT% | WET | |
| K2O | 1.22 | WT% | WET | |
| NA2O | 4.52 | WT% | WET | |
| P2O5 | 0.13 | WT% | WET |