Sample 186
NavDat sample number 17668 · RHYODACITE
Sample
| Sample ID | 186 |
|---|---|
| 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 | 33.0383 |
|---|---|
| Longitude | -108.504 |
| Location | Brock Canyon |
| State / province | New Mexico |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 32 | 31 | 33 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 68 | WT% | EDXRF | |
| TIO2 | 0.37 | WT% | EDXRF | |
| AL2O3 | 15.5 | WT% | EDXRF | |
| FEO | 2.24 | WT% | EDXRF | |
| MNO | 0.03 | WT% | EDXRF | |
| MGO | 1 | WT% | EDXRF | |
| CAO | 0.5 | WT% | EDXRF | |
| NA2O | 4.5 | WT% | EDXRF | |
| K2O | 5.19 | WT% | EDXRF | |
| TOTAL | 97.33 | WT% | EDXRF | |
| BA | 1223 | PPM | EDXRF | |
| CR | 14 | PPM | EDXRF | |
| NI | 9 | PPM | EDXRF | |
| RB | 160 | PPM | EDXRF | |
| SR | 204 | PPM | EDXRF | |
| U | 2 | PPM | EDXRF | |
| V | 43 | PPM | EDXRF | |
| Y | 28 | PPM | EDXRF | |
| ZN | 52 | PPM | EDXRF | |
| ZR | 193 | PPM | EDXRF |