Sample 487
NavDat sample number 17936 · RHYOLITE
Sample
| Sample ID | 487 |
|---|---|
| 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 | 33.5722 |
|---|---|
| Longitude | -108.249 |
| Location | Jerky mountain |
| State / province | New Mexico |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 26 | 23 | 30 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 79 | WT% | EDXRF | |
| TIO2 | 0.14 | WT% | EDXRF | |
| AL2O3 | 11 | WT% | EDXRF | |
| FEO | 0.86 | WT% | EDXRF | |
| MNO | 0.05 | WT% | EDXRF | |
| MGO | -1 | WT% | EDXRF | |
| CAO | 0.05 | WT% | EDXRF | |
| NA2O | 3.97 | WT% | EDXRF | |
| K2O | 4.59 | WT% | EDXRF | |
| TOTAL | 99.66 | WT% | EDXRF | |
| BA | -50 | PPM | EDXRF | |
| CR | -5 | PPM | EDXRF | |
| HF | 9.5 | PPM | EDXRF | |
| NI | -4 | PPM | EDXRF | |
| RB | 271 | PPM | EDXRF | |
| SC | 3.4 | PPM | EDXRF | |
| SR | 3 | PPM | EDXRF | |
| TA | 2.2 | PPM | EDXRF | |
| TH | 31.9 | PPM | EDXRF | |
| U | 8.5 | PPM | EDXRF | |
| V | -10 | PPM | EDXRF | |
| Y | 71 | PPM | EDXRF | |
| ZN | 57 | PPM | EDXRF | |
| ZR | 171 | PPM | EDXRF | |
| LA | 32.6 | PPM | EDXRF | |
| CE | 79 | PPM | EDXRF | |
| SM | 10.3 | PPM | EDXRF | |
| EU | 0.45 | PPM | EDXRF | |
| TB | 1.5 | PPM | EDXRF | |
| YB | 6.8 | PPM | EDXRF | |
| LU | 1.2 | PPM | EDXRF |