Sample 293
NavDat sample number 17767 · RHYOLITE
Sample
| Sample ID | 293 |
|---|---|
| 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 | 33.9119 |
|---|---|
| Longitude | -107.565 |
| Location | Beartrap canyon |
| State / province | New Mexico |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 29.5 | 27.8 | 31.2 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 77 | WT% | EDXRF | |
| TIO2 | 0.12 | WT% | EDXRF | |
| AL2O3 | 12 | WT% | EDXRF | |
| FEO | 0.89 | WT% | EDXRF | |
| MNO | 0.07 | WT% | EDXRF | |
| MGO | -1 | WT% | EDXRF | |
| CAO | 0.16 | WT% | EDXRF | |
| NA2O | 2.5 | WT% | EDXRF | |
| K2O | 4.67 | WT% | EDXRF | |
| TOTAL | 97.41 | WT% | EDXRF | |
| BA | -50 | PPM | EDXRF | |
| HF | 8 | PPM | EDXRF | |
| NI | -4 | PPM | EDXRF | |
| RB | 240 | PPM | EDXRF | |
| SR | 9 | PPM | EDXRF | |
| TH | 29.6 | PPM | EDXRF | |
| U | 4.3 | PPM | EDXRF | |
| V | 10 | PPM | EDXRF | |
| Y | 52 | PPM | EDXRF | |
| ZN | 54 | PPM | EDXRF | |
| ZR | 181 | PPM | EDXRF |