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Sample MB-225
NavDat sample number 75582 · DACITE
Sample
| Sample ID | MB-225 |
|---|
| Rock name | DACITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
Location
| Latitude | 48.872 |
|---|
| Longitude | -121.81 |
|---|
| State / province | washington |
|---|
| Formation | Dacite of Cougar Divide |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 0.613 |
|
0.605 |
0.621 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 61.96 | | WT% | XRF |
| TIO2 | 0.75 | | WT% | XRF |
| AL2O3 | 17 | | WT% | XRF |
| FEOT | 5.03 | | WT% | XRF |
| MNO | 0.09 | | WT% | XRF |
| MGO | 2.92 | | WT% | XRF |
| CAO | 5.61 | | WT% | XRF |
| NA2O | 3.98 | | WT% | XRF |
| K2O | 2.04 | | WT% | XRF |
| P2O5 | 0.21 | | WT% | XRF |
| LOI | 0.24 | | WT% | XRF |
