Sample 628
NavDat sample number 18045 · DACITE
Sample
| Sample ID | 628 |
|---|---|
| Rock name | DACITE |
| 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 | 33.3744 |
|---|---|
| Longitude | -108.681 |
| State / province | New Mexico |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 22.5 | 21.5 | 24.5 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 63 | WT% | EDXRF | |
| TIO2 | 0.93 | WT% | EDXRF | |
| AL2O3 | 16 | WT% | EDXRF | |
| FEO | 5.67 | WT% | EDXRF | |
| MNO | 0.08 | WT% | EDXRF | |
| MGO | 2.5 | WT% | EDXRF | |
| CAO | 4.68 | WT% | EDXRF | |
| NA2O | 3.5 | WT% | EDXRF | |
| K2O | 2.98 | WT% | EDXRF | |
| TOTAL | 99.34 | WT% | EDXRF | |
| BA | 810 | PPM | EDXRF | |
| CR | 36 | PPM | EDXRF | |
| NI | 63 | PPM | EDXRF | |
| RB | 89 | PPM | EDXRF | |
| SR | 474 | PPM | EDXRF | |
| V | 99 | PPM | EDXRF | |
| Y | 37 | PPM | EDXRF | |
| ZN | 294 | PPM | EDXRF | |
| ZR | 310 | PPM | EDXRF |