Sample 209
NavDat sample number 17688 · RHYOLITE
Sample
| Sample ID | 209 |
|---|---|
| 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 | 33.9139 |
|---|---|
| Longitude | -107.442 |
| 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 | 0.11 | WT% | EDXRF | |
| AL2O3 | 13 | WT% | EDXRF | |
| FEO | 0.8 | WT% | EDXRF | |
| MNO | 0.04 | WT% | EDXRF | |
| MGO | 1 | WT% | EDXRF | |
| CAO | 0.35 | WT% | EDXRF | |
| NA2O | 3 | WT% | EDXRF | |
| K2O | 4.46 | WT% | EDXRF | |
| TOTAL | 99.76 | WT% | EDXRF | |
| BA | -50 | PPM | EDXRF | |
| CR | -5 | PPM | EDXRF | |
| HF | 5.2 | PPM | EDXRF | |
| NI | -4 | PPM | EDXRF | |
| RB | 244 | PPM | EDXRF | |
| SC | 3 | PPM | EDXRF | |
| SR | 18 | PPM | EDXRF | |
| TA | 2.2 | PPM | EDXRF | |
| TH | 26.6 | PPM | EDXRF | |
| U | 5.2 | PPM | EDXRF | |
| V | -10 | PPM | EDXRF | |
| Y | 47 | PPM | EDXRF | |
| ZN | 50 | PPM | EDXRF | |
| ZR | 91 | PPM | EDXRF | |
| LA | 34.4 | PPM | EDXRF | |
| CE | 66 | PPM | EDXRF | |
| EU | 0.43 | PPM | EDXRF | |
| TB | 0.56 | PPM | EDXRF | |
| YB | 4.43 | PPM | EDXRF | |
| LU | 0.65 | PPM | EDXRF |