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Sample MB-493
NavDat sample number 75580 · DACITE
Sample
| Sample ID | MB-493 |
|---|
| Rock name | DACITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
Location
| Latitude | 48.86 |
|---|
| Longitude | -121.735 |
|---|
| State / province | washington |
|---|
| Formation | Dacite of Barometer Mountain |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 1.191 |
|
1.097 |
1.285 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 66.27 | | WT% | XRF |
| TIO2 | 0.63 | | WT% | XRF |
| AL2O3 | 16.36 | | WT% | XRF |
| FEOT | 4.03 | | WT% | XRF |
| MNO | 0.08 | | WT% | XRF |
| MGO | 1.66 | | WT% | XRF |
| CAO | 4.18 | | WT% | XRF |
| NA2O | 3.85 | | WT% | XRF |
| K2O | 2.27 | | WT% | XRF |
| P2O5 | 0.27 | | WT% | XRF |
| LOI | 2.3 | | WT% | XRF |
