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Sample MB-275c
NavDat sample number 75637 · RHYODACITE
Sample
| Sample ID | MB-275c |
|---|
| Rock name | RHYODACITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
Location
| Latitude | 48.804 |
|---|
| Longitude | -121.713 |
|---|
| State / province | washington |
|---|
| Formation | Rhyodacite dike of Swift/Rainbow divide |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 1.156 |
|
1.129 |
1.183 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 72.2 | | WT% | XRF |
| TIO2 | 0.35 | | WT% | XRF |
| AL2O3 | 15.65 | | WT% | XRF |
| FEOT | 1.18 | | WT% | XRF |
| MNO | 0.02 | | WT% | XRF |
| MGO | 0.28 | | WT% | XRF |
| CAO | 1.86 | | WT% | XRF |
| NA2O | 4.89 | | WT% | XRF |
| K2O | 3.04 | | WT% | XRF |
| P2O5 | 0.12 | | WT% | XRF |
| LOI | 0.86 | | WT% | XRF |
