Sample 18
NavDat sample number 17547 · DACITE
Sample
| Sample ID | 18 |
|---|---|
| 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 | 32.6694 |
|---|---|
| Longitude | -107.866 |
| Location | Rubio Peak |
| State / province | New Mexico |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 37.2 | 34.9 | 39.5 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 65.72 | WT% | EDXRF | |
| TIO2 | 0.43 | WT% | EDXRF | |
| AL2O3 | 17.5 | WT% | EDXRF | |
| FEO | 2.84 | WT% | EDXRF | |
| MGO | 1 | WT% | EDXRF | |
| CAO | 2.57 | WT% | EDXRF | |
| NA2O | 3.5 | WT% | EDXRF | |
| K2O | 3.33 | WT% | EDXRF | |
| TOTAL | 96.89 | WT% | EDXRF | |
| BA | 1560 | PPM | EDXRF | |
| CR | -5 | PPM | EDXRF | |
| HF | 5.4 | PPM | EDXRF | |
| NI | 11 | PPM | EDXRF | |
| RB | 84 | PPM | EDXRF | |
| SC | 2.7 | PPM | EDXRF | |
| SR | 546 | PPM | EDXRF | |
| TA | 0.9 | PPM | EDXRF | |
| TH | 8.1 | PPM | EDXRF | |
| U | 2.1 | PPM | EDXRF | |
| V | 50 | PPM | EDXRF | |
| Y | 21 | PPM | EDXRF | |
| ZN | 68 | PPM | EDXRF | |
| ZR | 252 | PPM | EDXRF | |
| LA | 40.2 | PPM | EDXRF | |
| CE | 72 | PPM | EDXRF | |
| SM | 4.7 | PPM | EDXRF | |
| EU | 1.39 | PPM | EDXRF | |
| TB | 0.66 | PPM | EDXRF | |
| YB | 1.29 | PPM | EDXRF | |
| LU | 0.3 | PPM | EDXRF |