Sample 458
NavDat sample number 17918 · RHYOLITE
Sample
| Sample ID | 458 |
|---|---|
| Rock name | RHYOLITE |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Comment | Maximum and minimum ages given are approximations based on average error of previous K-Ar dating. |
Location
| Latitude | 33.3044 |
|---|---|
| Longitude | -108.78 |
| Location | Nabours mountain |
| State / province | New Mexico |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 27.5 | 23 | 32 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 72.57 | WT% | EDXRF | |
| TIO2 | 0.46 | WT% | EDXRF | |
| AL2O3 | 13.51 | WT% | EDXRF | |
| FEO | 0.98 | WT% | EDXRF | |
| FE2O3 | 1.34 | WT% | EDXRF | |
| MNO | 0.06 | WT% | EDXRF | |
| MGO | 0.25 | WT% | EDXRF | |
| CAO | 1.06 | WT% | EDXRF | |
| NA2O | 4.16 | WT% | EDXRF | |
| K2O | 4.53 | WT% | EDXRF | |
| P2O5 | 0.16 | WT% | EDXRF | |
| H2O_PLUS | 0.61 | WT% | EDXRF | |
| TOTAL | 99.95 | WT% | EDXRF | |
| BA | 79 | PPM | EDXRF | |
| CR | 8 | PPM | EDXRF | |
| NI | 12 | PPM | EDXRF | |
| RB | 199 | PPM | EDXRF | |
| SR | 112 | PPM | EDXRF | |
| TH | 19 | PPM | EDXRF | |
| U | 5.3 | PPM | EDXRF | |
| V | 27 | PPM | EDXRF | |
| Y | 45 | PPM | EDXRF | |
| ZN | 216 | PPM | EDXRF | |
| ZR | 276 | PPM | EDXRF |