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Sample MB-628
NavDat sample number 75616 · RHYODACITE
Sample
| Sample ID | MB-628 |
|---|
| Rock name | RHYODACITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
Location
| Latitude | 48.855 |
|---|
| Longitude | -121.813 |
|---|
| State / province | washington |
|---|
| Formation | Rhyodacite dome of Cougar Divide |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 0.963 |
|
0.9 |
1.026 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 72.1 | | WT% | XRF |
| TIO2 | 0.5 | | WT% | XRF |
| AL2O3 | 16.31 | | WT% | XRF |
| FEOT | 0.91 | | WT% | XRF |
| MNO | 0.02 | | WT% | XRF |
| MGO | 0.2 | | WT% | XRF |
| CAO | 1.85 | | WT% | XRF |
| NA2O | 4.63 | | WT% | XRF |
| K2O | 2.98 | | WT% | XRF |
| P2O5 | 0.09 | | WT% | XRF |
| LOI | 2.19 | | WT% | XRF |
