← Search
Sample s_503
NavDat sample number 12461 · RHYOLITE
Sample
| Sample ID | s_503 |
|---|
| Rock name | RHYOLITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
| Comment | FE2+/FE = 0.8 |
|---|
Location
| Latitude | 42.5917 |
|---|
| Longitude | -122.673 |
|---|
| Location | CASCADES / HIGH CASCADES / NORTHWESTERN CASCADES / MOUNT MAZAMA / PACIFIC OCEAN |
|---|
| State / province | OREGON |
|---|
| Location comment | STEEL BAY DOME |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 0.04 |
|
0.036 |
0.044 |
QUATERNARY |
|
Analyses
Volcanic glass
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 72.2 | | WT% | XRF |
| TIO2 | 0.4 | | WT% | XRF |
| AL2O3 | 14.8 | | WT% | XRF |
| FE2O3 | 0.71 | | WT% | XRF |
| FEO | 1.48 | | WT% | XRF |
| CAO | 1.69 | | WT% | XRF |
| MGO | 0.54 | | WT% | XRF |
| MNO | 0.05 | | WT% | XRF |
| K2O | 2.75 | | WT% | XRF |
| NA2O | 5.35 | | WT% | XRF |
| P2O5 | 0.07 | | WT% | XRF |
| LOI | 1.12 | | WT% | IGN |
