Sample LR88-642
NavDat sample number 30117 · DACITE
Sample
| Sample ID | LR88-642 |
|---|---|
| Rock name | DACITE |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
Location
| Latitude | 37.7767 |
|---|---|
| Longitude | -106.832 |
| Location | Along road, Spring Gulch before bridge |
| State / province | COLORADO |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 26.26 | 26.22 | 26.3 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 63.76 | WT% | XRF | |
| TIO2 | 0.67 | WT% | XRF | |
| AL2O3 | 15.26 | WT% | XRF | |
| FE2O3 | 5.26 | WT% | XRF | |
| MGO | 1.77 | WT% | XRF | |
| CAO | 4.79 | WT% | XRF | |
| NA2O | 3.58 | WT% | XRF | |
| K2O | 3.63 | WT% | XRF | |
| P2O5 | 0.27 | WT% | XRF | |
| MNO | 0.08 | WT% | XRF | |
| LOI | 1.02 | WT% | XRF | |
| TOTAL | 99.06 | WT% | XRF | |
| ZN | 79 | PPM | XRF | |
| RB | 89.5 | PPM | XRF | |
| SR | 630 | PPM | XRF | |
| Y | 23 | PPM | XRF | |
| ZR | 180 | PPM | XRF | |
| NB | 16 | PPM | XRF | |
| PB | 26 | PPM | XRF | |
| TH | 13.5 | PPM | XRF | |
| BA | 1077.5 | PPM | XRF | |
| LA | 42 | PPM | XRF | |
| CE | 77 | PPM | XRF | |
| ND | 31 | PPM | XRF |