Sample 396
NavDat sample number 17860 · RHYOLITE
Sample
| Sample ID | 396 |
|---|---|
| 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 | 33.3731 |
|---|---|
| Longitude | -108.436 |
| Location | Middle fork |
| State / province | New Mexico |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 27.3 | 23.5 | 31.5 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 78 | WT% | EDXRF | |
| TIO2 | 0.11 | WT% | EDXRF | |
| AL2O3 | 11.5 | WT% | EDXRF | |
| FEO | 0.69 | WT% | EDXRF | |
| MNO | 0.03 | WT% | EDXRF | |
| MGO | 1 | WT% | EDXRF | |
| CAO | 1.61 | WT% | EDXRF | |
| NA2O | 1 | WT% | EDXRF | |
| K2O | 3.32 | WT% | EDXRF | |
| TOTAL | 97.26 | WT% | EDXRF | |
| BA | -50 | PPM | EDXRF | |
| CR | 7 | PPM | EDXRF | |
| NI | -4 | PPM | EDXRF | |
| RB | 137 | PPM | EDXRF | |
| SR | 167 | PPM | EDXRF | |
| TH | 26.8 | PPM | EDXRF | |
| U | 5.9 | PPM | EDXRF | |
| V | -10 | PPM | EDXRF | |
| Y | 30 | PPM | EDXRF | |
| ZN | 35 | PPM | EDXRF | |
| ZR | 151 | PPM | EDXRF |