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Sample MB-627
NavDat sample number 75600 · RHYODACITE
Sample
| Sample ID | MB-627 |
|---|
| Rock name | RHYODACITE |
|---|
| Rock type | PLUTONIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
| Comment | dike |
|---|
Location
| Latitude | 48.848 |
|---|
| Longitude | -121.821 |
|---|
| State / province | washington |
|---|
| Formation | Rhyodacite dikes of Cougar Divide |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 1.293 |
|
1.277 |
1.309 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 69.79 | | WT% | XRF |
| TIO2 | 0.56 | | WT% | XRF |
| AL2O3 | 15.95 | | WT% | XRF |
| FEOT | 2.81 | | WT% | XRF |
| MNO | 0.03 | | WT% | XRF |
| MGO | 0.41 | | WT% | XRF |
| CAO | 2.29 | | WT% | XRF |
| NA2O | 4.89 | | WT% | XRF |
| K2O | 2.72 | | WT% | XRF |
| P2O5 | 0.15 | | WT% | XRF |
| LOI | 1.84 | | WT% | XRF |
