Sample H87-168
NavDat sample number 33645 · TRACHYTE
Sample
| Sample ID | H87-168 |
|---|---|
| Rock name | TRACHYTE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
Location
| Latitude | 30.0017 |
|---|---|
| Longitude | -103.603 |
| Location | Crossen Trachyte |
| State / province | Texas |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 36.77 | 36.64 | 36.9 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 67.76 | WT% | ICP | |
| TIO2 | 0.6 | WT% | ICP | |
| AL2O3 | 14.26 | WT% | ICP | |
| FE2O3 | 1.03 | WT% | ICP | |
| FEO | 3.62 | WT% | ICP | |
| MNO | 0.16 | WT% | ICP | |
| MGO | 0.31 | WT% | ICP | |
| CAO | 1.71 | WT% | ICP | |
| NA2O | 5.29 | WT% | ICP | |
| K2O | 4.52 | WT% | ICP | |
| P2O5 | 0.06 | WT% | ICP | |
| H2O_PLUS | 1.59 | WT% | ICP | |
| CO2 | 0.55 | WT% | ICP | |
| TOTAL | 99.34 | WT% | ICP | |
| GA | 25 | PPM | ICP | |
| RB | 119 | PPM | ICP | |
| SR | 62 | PPM | ICP | |
| Y | 91 | PPM | ICP | |
| ZR | 853 | PPM | ICP | |
| NB | 60 | PPM | ICP | |
| BA | 839 | PPM | ICP | |
| LA | 78 | PPM | ICP | |
| CE | 160 | PPM | ICP | |
| PR | 21 | PPM | XRF | |
| ND | 72 | PPM | XRF | |
| SM | 15 | PPM | XRF | |
| EU | 2.6 | PPM | XRF | |
| GD | 16 | PPM | XRF | |
| TB | 2.4 | PPM | XRF | |
| DY | 14 | PPM | XRF | |
| HO | 2.6 | PPM | XRF | |
| ER | 7.9 | PPM | XRF | |
| TM | 1.2 | PPM | XRF | |
| YB | 8.3 | PPM | XRF | |
| LU | 1.2 | PPM | XRF |