← Search
Sample MB-416
NavDat sample number 75584 · DACITE
Sample
| Sample ID | MB-416 |
|---|
| Rock name | DACITE |
|---|
| Rock type | PLUTONIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
| Comment | dike |
|---|
Location
| Latitude | 48.831 |
|---|
| Longitude | -121.647 |
|---|
| State / province | washington |
|---|
| Formation | Dacite dikes of Lake Ann |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 2.2 |
|
1.8 |
2.6 |
early Pleistocene |
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 66.37 | | WT% | XRF |
| TIO2 | 0.58 | | WT% | XRF |
| AL2O3 | 16.09 | | WT% | XRF |
| FEOT | 3.62 | | WT% | XRF |
| MNO | 0.08 | | WT% | XRF |
| MGO | 1.82 | | WT% | XRF |
| CAO | 4.01 | | WT% | XRF |
| NA2O | 4.31 | | WT% | XRF |
| K2O | 2.54 | | WT% | XRF |
| P2O5 | 0.18 | | WT% | XRF |
| LOI | 3.11 | | WT% | XRF |
