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Sample s_MSH365-4
NavDat sample number 35116 · DACITE
Sample
| Sample ID | s_MSH365-4 |
|---|
| Rock name | DACITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
| Comment | Pumice |
|---|
Location
| Latitude | 46.2 |
|---|
| Longitude | -122.18 |
|---|
| Location | Mount St. Helens |
|---|
| State / province | Washington |
|---|
| Location comment | Kalama Flows |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 0 |
|
0.000204 |
0.000524 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 66.4 | | WT% | XRF |
| TIO2 | 0.59 | | WT% | XRF |
| AL2O3 | 16.51 | | WT% | XRF |
| FEOT | 4.03 | | WT% | XRF |
| CAO | 4 | | WT% | XRF |
| MGO | 1.35 | | WT% | XRF |
| MNO | 0.07 | | WT% | XRF |
| K2O | 1.57 | | WT% | XRF |
| NA2O | 4.25 | | WT% | XRF |
