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Sample 65L-80
NavDat sample number 4498 · DACITE
Sample
| Sample ID | 65L-80 |
|---|
| Rock name | DACITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
Location
| Latitude | 37.531 |
|---|
| Longitude | -106.834 |
|---|
| Location | from gully 3.3 km SE of Mt Hope |
|---|
| State / province | COLORADO |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 27.93 |
|
27.75 |
28.11 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 66.8 | | WT% | XRF |
| TIO2 | 0.53 | | WT% | XRF |
| AL2O3 | 17 | | WT% | XRF |
| FE2O3 | 3.98 | | WT% | XRF |
| MGO | 0.55 | | WT% | XRF |
| CAO | 3.4 | | WT% | XRF |
| NA2O | 3.6 | | WT% | XRF |
| K2O | 3.7 | | WT% | XRF |
| P2O5 | 0.21 | | WT% | XRF |
| MNO | 0.1 | | WT% | XRF |
| LOI | 0.49 | | WT% | XRF |
| TOTAL | 99.87 | | WT% | XRF |
