Sample LR87-715-12
NavDat sample number 30209 · ANDESITE
Sample
| Sample ID | LR87-715-12 |
|---|---|
| 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 | 63.9 | WT% | XRF | |
| TIO2 | 0.67 | WT% | XRF | |
| AL2O3 | 16.7 | WT% | XRF | |
| FE2O3 | 6 | WT% | XRF | |
| MGO | 0.73 | WT% | XRF | |
| CAO | 3.76 | WT% | XRF | |
| NA2O | 4.18 | WT% | XRF | |
| K2O | 3.31 | WT% | XRF | |
| P2O5 | 0.3 | WT% | XRF | |
| MNO | 0.16 | WT% | XRF | |
| LOI | 0.73 | WT% | XRF | |
| TOTAL | 99.73 | WT% | XRF | |
| ZN | 90 | PPM | XRF | |
| RB | 78 | PPM | XRF | |
| SR | 797 | PPM | XRF | |
| Y | 24 | PPM | XRF | |
| ZR | 243 | PPM | XRF | |
| NB | 12 | PPM | XRF | |
| PB | 32 | PPM | XRF | |
| TH | 9 | PPM | XRF | |
| BA | 1543 | PPM | XRF | |
| LA | 44 | PPM | XRF | |
| CE | 75 | PPM | XRF | |
| ND | 29 | PPM | XRF |