Sample LR88-556
NavDat sample number 30196 · ANDESITE
Sample
| Sample ID | LR88-556 |
|---|---|
| Rock name | ANDESITE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
Location
| Latitude | 37.8278 |
|---|---|
| Longitude | -107.114 |
| 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 | 57.03 | WT% | XRF | |
| TIO2 | 1.03 | WT% | XRF | |
| AL2O3 | 15.34 | WT% | XRF | |
| FE2O3 | 7.86 | WT% | XRF | |
| MGO | 3.49 | WT% | XRF | |
| CAO | 6.06 | WT% | XRF | |
| NA2O | 2.95 | WT% | XRF | |
| K2O | 3.57 | WT% | XRF | |
| P2O5 | 0.46 | WT% | XRF | |
| MNO | 0.15 | WT% | XRF | |
| LOI | 0.92 | WT% | XRF | |
| TOTAL | 97.95 | WT% | XRF | |
| ZN | 120 | PPM | XRF | |
| RB | 120 | PPM | XRF | |
| SR | 553 | PPM | XRF | |
| Y | 36 | PPM | XRF | |
| ZR | 358 | PPM | XRF | |
| NB | 25 | PPM | XRF | |
| PB | 37 | PPM | XRF | |
| TH | 27 | PPM | XRF | |
| BA | 897 | PPM | XRF | |
| LA | 60 | PPM | XRF | |
| CE | 109 | PPM | XRF | |
| ND | 56 | PPM | XRF |