Sample 218
NavDat sample number 17697 · RHYOLITE
Sample
| Sample ID | 218 |
|---|---|
| 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 | 34.1131 |
|---|---|
| Longitude | -107.939 |
| 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 | 75 | WT% | EDXRF | |
| TIO2 | 0.18 | WT% | EDXRF | |
| AL2O3 | 12 | WT% | EDXRF | |
| FEO | 1.53 | WT% | EDXRF | |
| MNO | 0.09 | WT% | EDXRF | |
| MGO | -1 | WT% | EDXRF | |
| CAO | 0.1 | WT% | EDXRF | |
| NA2O | 4.15 | WT% | EDXRF | |
| K2O | 4.6 | WT% | EDXRF | |
| TOTAL | 97.65 | WT% | EDXRF | |
| BA | 313 | PPM | EDXRF | |
| CR | 11 | PPM | EDXRF | |
| HF | 13.5 | PPM | EDXRF | |
| NI | -4 | PPM | EDXRF | |
| RB | 219 | PPM | EDXRF | |
| SC | 4.8 | PPM | EDXRF | |
| SR | 12 | PPM | EDXRF | |
| TA | 3.1 | PPM | EDXRF | |
| U | 6.3 | PPM | EDXRF | |
| V | 12 | PPM | EDXRF | |
| Y | 66 | PPM | EDXRF | |
| ZN | 89 | PPM | EDXRF | |
| ZR | 431 | PPM | EDXRF | |
| LA | 40.4 | PPM | EDXRF | |
| CE | 85 | PPM | EDXRF | |
| ND | 35 | PPM | EDXRF | |
| SM | 13.1 | PPM | EDXRF | |
| EU | 0.54 | PPM | EDXRF | |
| TB | 1.69 | PPM | EDXRF | |
| YB | 5.85 | PPM | EDXRF | |
| LU | 0.91 | PPM | EDXRF |