Sample LRT-E
NavDat sample number 12665 · RHYOLITE
Sample
| Sample ID | LRT-E |
|---|---|
| Rock name | RHYOLITE |
| Rock type | PLUTONIC |
| Composition | FELSIC |
| Material | IGNEOUS |
Location
| Latitude | 31.285 |
|---|---|
| Longitude | -105.462 |
| Location | Little Round Top, Sierra Blanca group |
| State / province | Texas |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 47 | 38 | 48 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 72.32 | WT% | PER_COM | |
| TIO2 | 0.02 | WT% | PER_COM | |
| AL2O3 | 13.41 | WT% | PER_COM | |
| FE2O3 | 1.63 | WT% | XRF | |
| MNO | 0.08 | WT% | XRF | |
| MGO | 0.45 | WT% | XRF | |
| CAO | 0.72 | WT% | XRF | |
| NA2O | 5.07 | WT% | XRF | |
| K2O | 4.11 | WT% | XRF | |
| TOTAL | 100 | WT% | XRF | |
| SC | 0.3 | PPM | INAA | |
| CR | 28.7 | PPM | INAA | |
| RB | 1382 | PPM | INAA | |
| BA | 458 | PPM | INAA | |
| LA | 26.1 | PPM | INAA | |
| CE | 51 | PPM | INAA | |
| ND | 30.1 | PPM | INAA | |
| SM | 9.1 | PPM | INAA | |
| TH | 202 | PPM | INAA |