Sample 397
NavDat sample number 17861 · RHYODACITE
Sample
| Sample ID | 397 |
|---|---|
| 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 | 33.39 |
|---|---|
| Longitude | -108.824 |
| Location | Apache springs |
| State / province | New Mexico |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 27.3 | 26.5 | 28.1 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 70 | WT% | EDXRF | |
| TIO2 | 0.35 | WT% | EDXRF | |
| AL2O3 | 15 | WT% | EDXRF | |
| FEO | 1.7 | WT% | EDXRF | |
| MNO | 0.03 | WT% | EDXRF | |
| MGO | -1 | WT% | EDXRF | |
| CAO | 0.55 | WT% | EDXRF | |
| NA2O | 5.32 | WT% | EDXRF | |
| K2O | 4.06 | WT% | EDXRF | |
| TOTAL | 97.01 | WT% | EDXRF | |
| BA | 935 | PPM | EDXRF | |
| CR | -5 | PPM | EDXRF | |
| HF | 12.7 | PPM | EDXRF | |
| NI | 5 | PPM | EDXRF | |
| RB | 131 | PPM | EDXRF | |
| SC | 4.6 | PPM | EDXRF | |
| SR | 503 | PPM | EDXRF | |
| TA | 1.5 | PPM | EDXRF | |
| TH | 22.9 | PPM | EDXRF | |
| V | 33 | PPM | EDXRF | |
| Y | 65 | PPM | EDXRF | |
| ZN | 25 | PPM | EDXRF | |
| ZR | 333 | PPM | EDXRF | |
| LA | 86.8 | PPM | EDXRF | |
| CE | 178 | PPM | EDXRF | |
| ND | 118 | PPM | EDXRF | |
| SM | 17.3 | PPM | EDXRF | |
| EU | 1.57 | PPM | EDXRF | |
| YB | 6.63 | PPM | EDXRF | |
| LU | 0.92 | PPM | EDXRF |