Sample LR87-715-7
NavDat sample number 30208 · ANDESITE
Sample
| Sample ID | LR87-715-7 |
|---|---|
| Rock name | ANDESITE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
Location
| Latitude | 38.1133 |
|---|---|
| Longitude | -107.296 |
| Location | Lake Fork northwestern 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 | 60.83 | WT% | XRF | |
| TIO2 | 0.72 | WT% | XRF | |
| AL2O3 | 17.24 | WT% | XRF | |
| FE2O3 | 6.59 | WT% | XRF | |
| MGO | 2.92 | WT% | XRF | |
| CAO | 6.04 | WT% | XRF | |
| NA2O | 3.72 | WT% | XRF | |
| K2O | 1.17 | WT% | XRF | |
| P2O5 | 0.29 | WT% | XRF | |
| MNO | 0.11 | WT% | XRF | |
| LOI | 3.7 | WT% | XRF | |
| TOTAL | 99.63 | WT% | XRF | |
| ZN | 97 | PPM | XRF | |
| RB | 20 | PPM | XRF | |
| SR | 1154 | PPM | XRF | |
| Y | 18 | PPM | XRF | |
| ZR | 180 | PPM | XRF | |
| NB | 7 | PPM | XRF | |
| PB | 33 | PPM | XRF | |
| TH | 9 | PPM | XRF | |
| BA | 1130 | PPM | XRF | |
| LA | 40 | PPM | XRF | |
| CE | 70 | PPM | XRF | |
| ND | 28 | PPM | XRF |