Sample 342
NavDat sample number 17808 · RHYOLITE
Sample
| Sample ID | 342 |
|---|---|
| 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 | 33.7681 |
|---|---|
| Longitude | -108.541 |
| Location | Shelley peak |
| State / province | New Mexico |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 27.7 | 23.7 | 31.7 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 78 | WT% | EDXRF | |
| TIO2 | 0.13 | WT% | EDXRF | |
| AL2O3 | 11.5 | WT% | EDXRF | |
| FEO | 1.05 | WT% | EDXRF | |
| MNO | 0.06 | WT% | EDXRF | |
| MGO | -1 | WT% | EDXRF | |
| CAO | 0.27 | WT% | EDXRF | |
| NA2O | 3.52 | WT% | EDXRF | |
| K2O | 4.35 | WT% | EDXRF | |
| TOTAL | 98.88 | WT% | EDXRF | |
| BA | -50 | PPM | EDXRF | |
| CR | -5 | PPM | EDXRF | |
| HF | 9.8 | PPM | EDXRF | |
| NI | -4 | PPM | EDXRF | |
| RB | 325 | PPM | EDXRF | |
| SC | 4 | PPM | EDXRF | |
| SR | 17 | PPM | EDXRF | |
| TA | 2.1 | PPM | EDXRF | |
| TH | 34.1 | PPM | EDXRF | |
| U | 8 | PPM | EDXRF | |
| V | 11 | PPM | EDXRF | |
| Y | 59 | PPM | EDXRF | |
| ZN | 89 | PPM | EDXRF | |
| ZR | 163 | PPM | EDXRF | |
| LA | 26.4 | PPM | EDXRF | |
| CE | 60 | PPM | EDXRF | |
| SM | 5.1 | PPM | EDXRF | |
| EU | 0.5 | PPM | EDXRF | |
| TB | 1.02 | PPM | EDXRF | |
| YB | 6.16 | PPM | EDXRF | |
| LU | 1.16 | PPM | EDXRF |