Sample BB81-12
NavDat sample number 15062 · TRACHYTE
Sample
| Sample ID | BB81-12 |
|---|---|
| Rock name | TRACHYTE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
Location
| Latitude | 29.2 |
|---|---|
| Longitude | -103.2 |
| Location | Boot Rock Member, Big Bend National Park |
| 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 | 60.36 | WT% | XRF | |
| TIO2 | 0.18 | WT% | XRF | |
| AL2O3 | 14.73 | WT% | XRF | |
| FE2O3T | 10.31 | WT% | XRF | |
| MNO | 0.35 | WT% | XRF | |
| CAO | 1.33 | WT% | XRF | |
| NA2O | 6.21 | WT% | XRF | |
| K2O | 5.72 | WT% | XRF | |
| P2O5 | 0.18 | WT% | XRF | |
| TOTAL | 99.37 | WT% | XRF | |
| SC | 0.81 | PPM | INAA | |
| ZN | 161 | PPM | INAA | |
| RB | 186 | PPM | INAA | |
| SR | 51 | PPM | XRF | |
| Y | 64 | PPM | XRF | |
| ZR | 592 | PPM | INAA | |
| NB | 47 | PPM | XRF | |
| CS | 2.34 | PPM | INAA | |
| BA | 101 | PPM | INAA | |
| CE | 171 | PPM | INAA | |
| ND | 85.96 | PPM | INAA | |
| SM | 14.48 | PPM | INAA | |
| EU | 2.08 | PPM | INAA | |
| TB | 2.16 | PPM | INAA | |
| YB | 6.05 | PPM | INAA | |
| LU | 0.86 | PPM | INAA | |
| HF | 13.2 | PPM | INAA | |
| TA | 5.28 | PPM | INAA | |
| TH | 16.72 | PPM | INAA | |
| U | 6.37 | PPM | INAA |