Sample 617
NavDat sample number 18034 · RHYODACITE
Sample
| Sample ID | 617 |
|---|---|
| Rock name | RHYODACITE |
| 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 | 33.8036 |
|---|---|
| Longitude | -108.476 |
| Location | John Kerr peak |
| State / province | New Mexico |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 21.4 | 18 | 25 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 69 | WT% | EDXRF | |
| TIO2 | 0.51 | WT% | EDXRF | |
| AL2O3 | 13.5 | WT% | EDXRF | |
| FEO | 3.13 | WT% | EDXRF | |
| MNO | 0.05 | WT% | EDXRF | |
| MGO | 1.5 | WT% | EDXRF | |
| CAO | 2.85 | WT% | EDXRF | |
| NA2O | 2.5 | WT% | EDXRF | |
| K2O | 3.31 | WT% | EDXRF | |
| TOTAL | 99.35 | WT% | EDXRF | |
| BA | 732 | PPM | EDXRF | |
| CR | 20 | PPM | EDXRF | |
| NI | 15 | PPM | EDXRF | |
| RB | 110 | PPM | EDXRF | |
| SR | 319 | PPM | EDXRF | |
| TH | 15.3 | PPM | EDXRF | |
| U | 3.2 | PPM | EDXRF | |
| V | 44 | PPM | EDXRF | |
| Y | 33 | PPM | EDXRF | |
| ZN | 52 | PPM | EDXRF | |
| ZR | 195 | PPM | EDXRF |