Sample 212
NavDat sample number 17691 · RHYOLITE
Sample
| Sample ID | 212 |
|---|---|
| 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 | 33.9061 |
|---|---|
| Longitude | -107.457 |
| Location | A-L peak |
| State / province | New Mexico |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 31.8 | 28 | 35 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 77 | WT% | EDXRF | |
| TIO2 | 0.12 | WT% | EDXRF | |
| AL2O3 | 12 | WT% | EDXRF | |
| FEO | 0.71 | WT% | EDXRF | |
| MNO | 0.05 | WT% | EDXRF | |
| MGO | -1 | WT% | EDXRF | |
| CAO | 0.26 | WT% | EDXRF | |
| NA2O | 3.72 | WT% | EDXRF | |
| K2O | 4.52 | WT% | EDXRF | |
| TOTAL | 98.38 | WT% | EDXRF | |
| BA | -50 | PPM | EDXRF | |
| CR | -5 | PPM | EDXRF | |
| HF | 6.2 | PPM | EDXRF | |
| NI | -4 | PPM | EDXRF | |
| RB | 252 | PPM | EDXRF | |
| SC | 2.8 | PPM | EDXRF | |
| SR | 7 | PPM | EDXRF | |
| TA | 2.4 | PPM | EDXRF | |
| TH | 28.9 | PPM | EDXRF | |
| U | 3.7 | PPM | EDXRF | |
| V | -10 | PPM | EDXRF | |
| Y | 40 | PPM | EDXRF | |
| ZN | 45 | PPM | EDXRF | |
| ZR | 83 | PPM | EDXRF | |
| LA | 28.9 | PPM | EDXRF | |
| CE | 74 | PPM | EDXRF | |
| SM | 3.3 | PPM | EDXRF | |
| EU | 0.55 | PPM | EDXRF | |
| YB | 3.48 | PPM | EDXRF | |
| LU | 0.6 | PPM | EDXRF |