Sample 208
NavDat sample number 17687 · RHYOLITE
Sample
| Sample ID | 208 |
|---|---|
| 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 | 33.9158 |
|---|---|
| Longitude | -107.441 |
| 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 |
|---|---|---|---|---|
| BA | -50 | PPM | EDXRF | |
| CR | -5 | PPM | EDXRF | |
| HF | 5.6 | PPM | EDXRF | |
| NI | -4 | PPM | EDXRF | |
| RB | 236 | PPM | EDXRF | |
| SC | 3.1 | PPM | EDXRF | |
| SR | 17 | PPM | EDXRF | |
| TA | 1.9 | PPM | EDXRF | |
| TH | 25.5 | PPM | EDXRF | |
| U | 4.4 | PPM | EDXRF | |
| V | -10 | PPM | EDXRF | |
| Y | 50 | PPM | EDXRF | |
| ZN | 43 | PPM | EDXRF | |
| ZR | 92 | PPM | EDXRF | |
| LA | 34.6 | PPM | EDXRF | |
| CE | 73 | PPM | EDXRF | |
| SM | 4.8 | PPM | EDXRF | |
| EU | 0.56 | PPM | EDXRF | |
| TB | 0.66 | PPM | EDXRF | |
| YB | 4.62 | PPM | EDXRF | |
| LU | 0.72 | PPM | EDXRF | |
| SIO2 | 72.58 | WT% | EDXRF | |
| TIO2 | 0.15 | WT% | EDXRF | |
| AL2O3 | 12.55 | WT% | EDXRF | |
| FEO | 0.37 | WT% | EDXRF | |
| FE2O3 | 0.82 | WT% | EDXRF | |
| MNO | 0.08 | WT% | EDXRF | |
| MGO | 0.14 | WT% | EDXRF | |
| CAO | 0.67 | WT% | EDXRF | |
| NA2O | 4.49 | WT% | EDXRF | |
| K2O | 3.82 | WT% | EDXRF | |
| P2O5 | 0.02 | WT% | EDXRF | |
| H2O_PLUS | 3.03 | WT% | EDXRF | |
| TOTAL | 100.08 | WT% | EDXRF |