Sample J87-65
NavDat sample number 33620 · RHYOLITE
Sample
| Sample ID | J87-65 |
|---|---|
| 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 |
|---|---|---|---|---|---|
| 35.65 | 35.53 | 35.77 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 71.16 | WT% | XRF | |
| TIO2 | 0.55 | WT% | XRF | |
| AL2O3 | 14.03 | WT% | XRF | |
| FEOT | 3.25 | WT% | XRF | |
| MNO | 0.11 | WT% | XRF | |
| MGO | 0.1 | WT% | XRF | |
| CAO | 0.55 | WT% | XRF | |
| NA2O | 4.16 | WT% | XRF | |
| K2O | 6.01 | WT% | XRF | |
| P2O5 | 0.09 | WT% | XRF | |
| H2O_PLUS | 0.81 | WT% | XRF | |
| TOTAL | 100.08 | WT% | XRF | |
| SC | 4 | PPM | XRF | |
| V | 28 | PPM | XRF | |
| NI | 8 | PPM | XRF | |
| CU | 8 | PPM | XRF | |
| ZN | 91 | PPM | XRF | |
| GA | 24 | PPM | XRF | |
| RB | 207 | PPM | XRF | |
| SR | 49 | PPM | XRF | |
| Y | 77 | PPM | XRF | |
| ZR | 853 | PPM | XRF | |
| NB | 87 | PPM | XRF | |
| BA | 382 | PPM | XRF | |
| LA | 99 | PPM | XRF | |
| CE | 213 | PPM | XRF | |
| EU | 0.9 | PPM | XRF | |
| TA | 15 | PPM | XRF | |
| PB | 22 | PPM | XRF |