Sample J86-22
NavDat sample number 33623 · RHYOLITE
Sample
| Sample ID | J86-22 |
|---|---|
| Rock name | RHYOLITE |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
Location
| Latitude | 30.5983 |
|---|---|
| Longitude | -103.925 |
| Location | Barrel Springs Formation, Davis Mtns |
| State / province | Texas |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 35.6 | 26 | 38 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 72.21 | WT% | ICP | |
| TIO2 | 0.47 | WT% | ICP | |
| AL2O3 | 13.72 | WT% | ICP | |
| FE2O3 | 3.19 | WT% | ICP | |
| FEO | 0.07 | WT% | ICP | |
| MNO | 0.05 | WT% | ICP | |
| MGO | 0.19 | WT% | ICP | |
| CAO | 0.31 | WT% | ICP | |
| NA2O | 3.97 | WT% | ICP | |
| K2O | 5.8 | WT% | ICP | |
| P2O5 | 0.02 | WT% | ICP | |
| H2O_PLUS | 0.58 | WT% | ICP | |
| TOTAL | 98.76 | WT% | ICP | |
| SR | 37 | PPM | ICP | |
| Y | 79 | PPM | ICP | |
| BA | 199 | PPM | ICP | |
| LA | 104 | PPM | ICP | |
| CE | 218 | PPM | ICP | |
| ND | 76 | PPM | XRF | |
| EU | 0.6 | PPM | XRF | |
| GD | 14 | PPM | XRF | |
| DY | 13 | PPM | XRF | |
| ER | 9.7 | PPM | XRF | |
| TM | 9.8 | PPM | XRF | |
| YB | 1.52 | PPM | XRF |