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Sample MB-626
NavDat sample number 75599 · RHYODACITE
Sample
| Sample ID | MB-626 |
|---|
| Rock name | RHYODACITE |
|---|
| Rock type | PLUTONIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
| Comment | dike |
|---|
Location
| Latitude | 48.84 |
|---|
| Longitude | -121.827 |
|---|
| State / province | washington |
|---|
| Formation | Rhyodacite dikes of Cougar Divide |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 1.283 |
|
1.26 |
1.306 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 65.43 | | WT% | XRF |
| TIO2 | 0.59 | | WT% | XRF |
| AL2O3 | 16.64 | | WT% | XRF |
| FEOT | 4.25 | | WT% | XRF |
| MNO | 0.04 | | WT% | XRF |
| MGO | 1.52 | | WT% | XRF |
| CAO | 4.3 | | WT% | XRF |
| NA2O | 4.15 | | WT% | XRF |
| K2O | 2.48 | | WT% | XRF |
| P2O5 | 0.2 | | WT% | XRF |
| LOI | 3.01 | | WT% | XRF |
