Sample LR87-718-2
NavDat sample number 30123 · ANDESITE
Sample
| Sample ID | LR87-718-2 |
|---|---|
| Rock name | ANDESITE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
| Comment | mix lava |
Location
| Latitude | 37.9269 |
|---|---|
| Longitude | -106.929 |
| Location | north of Nelson Mountain |
| State / province | COLORADO |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 26.5 | 26.1 | 26.9 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 56.95 | WT% | XRF | |
| TIO2 | 1.06 | WT% | XRF | |
| AL2O3 | 17.31 | WT% | XRF | |
| FE2O3 | 8.14 | WT% | XRF | |
| MGO | 2.19 | WT% | XRF | |
| CAO | 5.77 | WT% | XRF | |
| NA2O | 3.64 | WT% | XRF | |
| K2O | 3.04 | WT% | XRF | |
| P2O5 | 0.45 | WT% | XRF | |
| MNO | 0.11 | WT% | XRF | |
| LOI | 0.73 | WT% | XRF | |
| TOTAL | 98.66 | WT% | XRF | |
| ZN | 90 | PPM | XRF | |
| RB | 84 | PPM | XRF | |
| SR | 759 | PPM | XRF | |
| Y | 32 | PPM | XRF | |
| ZR | 187 | PPM | XRF | |
| NB | 11 | PPM | XRF | |
| PB | 42 | PPM | XRF | |
| TH | 9 | PPM | XRF | |
| BA | 1061 | PPM | XRF | |
| LA | 46 | PPM | XRF | |
| CE | 84 | PPM | XRF | |
| ND | 43 | PPM | XRF |