Sample LR88-558
NavDat sample number 30198 · ANDESITE
Sample
| Sample ID | LR88-558 |
|---|---|
| Rock name | ANDESITE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
Location
| Latitude | 37.8261 |
|---|---|
| Longitude | -107.113 |
| Location | Santa Maria Reservoir area |
| State / province | COLORADO |
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 | 55.51 | WT% | XRF | |
| TIO2 | 0.95 | WT% | XRF | |
| AL2O3 | 14.89 | WT% | XRF | |
| FE2O3 | 9.78 | WT% | XRF | |
| MGO | 4.75 | WT% | XRF | |
| CAO | 8.75 | WT% | XRF | |
| NA2O | 2.74 | WT% | XRF | |
| K2O | 2.36 | WT% | XRF | |
| P2O5 | 0.34 | WT% | XRF | |
| MNO | 0.17 | WT% | XRF | |
| LOI | 1.12 | WT% | XRF | |
| TOTAL | 100.24 | WT% | XRF | |
| ZN | 134 | PPM | XRF | |
| RB | 78.5 | PPM | XRF | |
| SR | 402 | PPM | XRF | |
| Y | 34 | PPM | XRF | |
| ZR | 230.5 | PPM | XRF | |
| NB | 17.5 | PPM | XRF | |
| PB | 40.5 | PPM | XRF | |
| TH | 19.5 | PPM | XRF | |
| BA | 568 | PPM | XRF | |
| LA | 30 | PPM | XRF | |
| CE | 77 | PPM | XRF | |
| ND | 33 | PPM | XRF |