← Search
Sample MB-472
NavDat sample number 75626 · RHYODACITE
Sample
| Sample ID | MB-472 |
|---|
| Rock name | RHYODACITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
Location
| Latitude | 48.828 |
|---|
| Longitude | -121.767 |
|---|
| State / province | washington |
|---|
| Formation | Rhyodacite of Lasiocarpa Ridge |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 1.06 |
|
0.99 |
1.13 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 73.12 | | WT% | XRF |
| TIO2 | 0.36 | | WT% | XRF |
| AL2O3 | 15.45 | | WT% | XRF |
| FEOT | 1.86 | | WT% | XRF |
| MNO | 0.03 | | WT% | XRF |
| MGO | 0.78 | | WT% | XRF |
| CAO | 1.88 | | WT% | XRF |
| NA2O | 3.7 | | WT% | XRF |
| K2O | 2.28 | | WT% | XRF |
| P2O5 | 0.14 | | WT% | XRF |
| LOI | 2.72 | | WT% | XRF |
