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Sample MB-449
NavDat sample number 75585 · DACITE
Sample
| Sample ID | MB-449 |
|---|
| Rock name | DACITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
Location
| Latitude | 48.851 |
|---|
| Longitude | -121.721 |
|---|
| State / province | washington |
|---|
| Formation | Dacite of Mazama Lake |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 1.35 |
|
0.9 |
1.8 |
middle Pleistocene |
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 65.79 | | WT% | XRF |
| TIO2 | 0.73 | | WT% | XRF |
| AL2O3 | 16.38 | | WT% | XRF |
| FEOT | 4.31 | | WT% | XRF |
| MNO | 0.07 | | WT% | XRF |
| MGO | 1.1 | | WT% | XRF |
| CAO | 3.98 | | WT% | XRF |
| NA2O | 4.35 | | WT% | XRF |
| K2O | 2.68 | | WT% | XRF |
| P2O5 | 0.21 | | WT% | XRF |
| LOI | 1.38 | | WT% | XRF |
