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Sample 99L-4
NavDat sample number 46153 · DACITE
Sample
| Sample ID | 99L-4 |
|---|
| Rock name | DACITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
Location
| Latitude | 38.126 |
|---|
| Longitude | -106.874 |
|---|
| Location | East Los Pinos Pass |
|---|
| State / province | COLORADO |
|---|
| Formation | Conejos Formation and related early rocks |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 31.25 |
|
29.5 |
33 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 66.57 | | WT% | XRF |
| TIO2 | 0.613547 | | WT% | XRF |
| AL2O3 | 15.85 | | WT% | XRF |
| FE2O3 | 4.17212 | | WT% | XRF |
| MGO | 1.3089 | | WT% | XRF |
| CAO | 3.31315 | | WT% | XRF |
| NA2O | 3.55857 | | WT% | XRF |
| K2O | 4.34596 | | WT% | XRF |
| P2O5 | 0.286322 | | WT% | XRF |
| MNO | 0.0715805 | | WT% | XRF |
| LOI | 2.21 | | WT% | XRF |
| TOTAL | 100.09 | | WT% | XRF |
