Sample 343
NavDat sample number 17809 · RHYODACITE
Sample
| Sample ID | 343 |
|---|---|
| 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 | 33.7656 |
|---|---|
| Longitude | -108.539 |
| Location | Shelley peak |
| State / province | New Mexico |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 27.7 | 23.7 | 31.7 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 69 | WT% | EDXRF | |
| TIO2 | 0.44 | WT% | EDXRF | |
| AL2O3 | 16 | WT% | EDXRF | |
| FEO | 2.07 | WT% | EDXRF | |
| MNO | 0.07 | WT% | EDXRF | |
| MGO | -1 | WT% | EDXRF | |
| CAO | 1.31 | WT% | EDXRF | |
| NA2O | 3.5 | WT% | EDXRF | |
| K2O | 4.93 | WT% | EDXRF | |
| TOTAL | 97.32 | WT% | EDXRF | |
| BA | 473 | PPM | EDXRF | |
| CR | 12 | PPM | EDXRF | |
| NI | 11 | PPM | EDXRF | |
| RB | 199 | PPM | EDXRF | |
| SR | 202 | PPM | EDXRF | |
| TH | 25.7 | PPM | EDXRF | |
| U | 3.9 | PPM | EDXRF | |
| V | 33 | PPM | EDXRF | |
| Y | 42 | PPM | EDXRF | |
| ZN | 41 | PPM | EDXRF | |
| ZR | 296 | PPM | EDXRF |