Sample LRT-2
NavDat sample number 7131 · RHYOLITE
Sample
| Sample ID | LRT-2 |
|---|---|
| Rock name | RHYOLITE |
| Rock type | PLUTONIC |
| Composition | FELSIC |
| Material | IGNEOUS |
Location
| Latitude | 31.2833 |
|---|---|
| Longitude | -105.467 |
| Location | Little Round Top, Sierra Blanca group |
| State / province | Texas |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 32 | 26 | 38 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 73 | WT% | XRF | |
| AL2O3 | 13.92 | WT% | XRF | |
| FE2O3 | 1.01 | WT% | XRF | |
| FEO | 0.38 | WT% | XRF | |
| MNO | 0.14 | WT% | XRF | |
| MGO | 0.03 | WT% | XRF | |
| CAO | 1.09 | WT% | XRF | |
| NA2O | 5.12 | WT% | XRF | |
| K2O | 3.8 | WT% | XRF | |
| H2O_PLUS | 0.49 | WT% | XRF | |
| H2O_MINUS | 0.11 | WT% | XRF | |
| CO2 | 0.01 | WT% | XRF | |
| TOTAL | 99.08 | WT% | XRF | |
| ZN | 200 | PPM | UNKNOWN | |
| RB | 2112 | PPM | UNKNOWN | |
| SR | 30 | PPM | UNKNOWN | |
| Y | 274 | PPM | UNKNOWN | |
| ZR | 735 | PPM | UNKNOWN | |
| NB | 309 | PPM | UNKNOWN |