Sample RS71-40
NavDat sample number 15052 · RHYOLITE
Sample
| Sample ID | RS71-40 |
|---|---|
| Rock name | RHYOLITE |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
Location
| Latitude | 29.2 |
|---|---|
| Longitude | -103.2 |
| 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 | 71.13 | WT% | XRF | |
| TIO2 | 0.23 | WT% | XRF | |
| AL2O3 | 12.3 | WT% | XRF | |
| FE2O3T | 3.35 | WT% | XRF | |
| MNO | 0.08 | WT% | XRF | |
| MGO | 1.82 | WT% | XRF | |
| CAO | 0.7 | WT% | XRF | |
| NA2O | 3.71 | WT% | XRF | |
| K2O | 5.43 | WT% | XRF | |
| P2O5 | 0.02 | WT% | XRF | |
| TOTAL | 98.77 | WT% | XRF | |
| SC | 3.96 | PPM | INAA | |
| ZN | 117 | PPM | INAA | |
| RB | 258 | PPM | INAA | |
| SR | 52 | PPM | XRF | |
| Y | 118 | PPM | XRF | |
| ZR | 806 | PPM | INAA | |
| NB | 89 | PPM | XRF | |
| CS | 2.11 | PPM | INAA | |
| BA | 425 | PPM | INAA | |
| LA | 140 | PPM | INAA | |
| CE | 254 | PPM | INAA | |
| ND | 103 | PPM | INAA | |
| SM | 21.96 | PPM | INAA | |
| EU | 0.45 | PPM | INAA | |
| TB | 4.07 | PPM | INAA | |
| YB | 12.99 | PPM | INAA | |
| LU | 1.66 | PPM | INAA | |
| HF | 26.45 | PPM | INAA | |
| TA | 14.46 | PPM | INAA | |
| TH | 25.98 | PPM | INAA | |
| U | 3.91 | PPM | INAA |