Sample RS71-8a
NavDat sample number 15059 · TRACHYTE
Sample
| Sample ID | RS71-8a |
|---|---|
| Rock name | TRACHYTE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
Location
| Latitude | 29.2 |
|---|---|
| Longitude | -103.2 |
| Location | Mt Locke Formation, Davis Mtns |
| State / province | Texas |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 35.4 | 35.3 | 35.6 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 64.36 | WT% | XRF | |
| TIO2 | 1.05 | WT% | XRF | |
| AL2O3 | 16.06 | WT% | XRF | |
| FE2O3T | 5.26 | WT% | XRF | |
| MNO | 0.07 | WT% | XRF | |
| MGO | 0.63 | WT% | XRF | |
| CAO | 3.04 | WT% | XRF | |
| NA2O | 5.02 | WT% | XRF | |
| K2O | 5.22 | WT% | XRF | |
| P2O5 | 0.3 | WT% | XRF | |
| TOTAL | 101 | WT% | XRF | |
| SC | 7.98 | PPM | INAA | |
| ZN | 117 | PPM | INAA | |
| RB | 161 | PPM | INAA | |
| SR | 403 | PPM | XRF | |
| Y | 53 | PPM | XRF | |
| ZR | 725 | PPM | INAA | |
| NB | 53 | PPM | XRF | |
| CS | 1.92 | PPM | INAA | |
| BA | 1066 | PPM | INAA | |
| LA | 78.4 | PPM | INAA | |
| CE | 156 | PPM | INAA | |
| ND | 65.86 | PPM | INAA | |
| SM | 11.73 | PPM | INAA | |
| EU | 2.48 | PPM | INAA | |
| TB | 0.58 | PPM | INAA | |
| YB | 6.07 | PPM | INAA | |
| LU | 0.81 | PPM | INAA | |
| HF | 20.4 | PPM | INAA | |
| TA | 7.03 | PPM | INAA | |
| TH | 22.18 | PPM | INAA | |
| U | 9 | PPM | INAA |