Sample s_UT 50
NavDat sample number 11173 · DACITE
Sample
| Sample ID | s_UT 50 |
|---|---|
| Rock name | DACITE |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Comment | 14C OF WOOD 5m ABOVE TEPHRA |
Location
| Latitude | 67.8583 |
|---|---|
| Longitude | -139.827 |
| Location | WRANGELLIA |
| State / province | YUKON TERRITORY |
| Location comment | YUKON TERRITORY |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 0.041 | 0.0369 | 0.0451 | QUATERNARY |
Analyses
Mineral
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 65.35 | WT% | EPMA | |
| AL2O3 | 18.37 | WT% | EPMA | |
| K2O | 16.12 | WT% | EPMA | |
| NA2O | 0.47 | WT% | EPMA | |
| SIO2 | 56.86 | WT% | EPMA | |
| AL2O3 | 26.72 | WT% | EPMA | |
| FEO | 0.39 | WT% | EPMA | |
| CAO | 9.71 | WT% | EPMA | |
| K2O | 0.24 | WT% | EPMA | |
| NA2O | 5.65 | WT% | EPMA | |
| SIO2 | 53.5 | WT% | EPMA | |
| AL2O3 | 0.89 | WT% | EPMA | |
| FEO | 21.84 | WT% | EPMA | |
| CAO | 1.13 | WT% | EPMA | |
| MGO | 21.71 | WT% | EPMA | |
| MNO | 1.22 | WT% | EPMA | |
| SIO2 | 50.4 | WT% | EPMA | |
| TIO2 | 0.63 | WT% | EPMA | |
| AL2O3 | 3.63 | WT% | EPMA | |
| FEO | 12.93 | WT% | EPMA | |
| CAO | 16.26 | WT% | EPMA | |
| MGO | 15.21 | WT% | EPMA | |
| MNO | 0.31 | WT% | EPMA |
References
- Westgate, J A; Walter, R C; Pearce, G W; Gorton, M P (1985) Distribution, stratigraphy, petrochemistry, and palaeomagnetism of the late Pleistocene Old Crow tephra in Alaska and the Yukon. Canadian Journal of Earth Sciences = Journal Canadien des Sciences de la Terre. 22; 6, Pages 893-906. 1985. doi:10.1139/e85-093