Sample 185
NavDat sample number 17667 · DACITE
Sample
| Sample ID | 185 |
|---|---|
| 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 | 32.0719 |
|---|---|
| Longitude | -108.516 |
| 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 | 63 | WT% | EDXRF | |
| TIO2 | 1.05 | WT% | EDXRF | |
| AL2O3 | 14.5 | WT% | EDXRF | |
| FEO | 4.96 | WT% | EDXRF | |
| MNO | 0.06 | WT% | EDXRF | |
| MGO | 2 | WT% | EDXRF | |
| CAO | 3.5 | WT% | EDXRF | |
| NA2O | 3.56 | WT% | EDXRF | |
| K2O | 4.31 | WT% | EDXRF | |
| P2O5 | 0.5 | WT% | EDXRF | |
| TOTAL | 97.44 | WT% | EDXRF | |
| BA | 1150 | PPM | EDXRF | |
| CR | 18 | PPM | EDXRF | |
| HF | 11.1 | PPM | EDXRF | |
| NI | 23 | PPM | EDXRF | |
| RB | 198 | PPM | EDXRF | |
| SC | 11.9 | PPM | EDXRF | |
| SR | 290 | PPM | EDXRF | |
| TA | 1.3 | PPM | EDXRF | |
| TH | 25.2 | PPM | EDXRF | |
| U | 5.4 | PPM | EDXRF | |
| V | 50 | PPM | EDXRF | |
| Y | 56 | PPM | EDXRF | |
| ZN | 71 | PPM | EDXRF | |
| ZR | 456 | PPM | EDXRF | |
| LA | 64.7 | PPM | EDXRF | |
| CE | 124 | PPM | EDXRF | |
| SM | 13.1 | PPM | EDXRF | |
| EU | 2.38 | PPM | EDXRF | |
| TB | 1.83 | PPM | EDXRF | |
| YB | 4.77 | PPM | EDXRF | |
| LU | 0.68 | PPM | EDXRF |