Sample 304
NavDat sample number 17778 · RHYOLITE
Sample
| Sample ID | 304 |
|---|---|
| Rock name | RHYOLITE |
| 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 | 33.0914 |
|---|---|
| Longitude | -108.485 |
| Location | Davis canyon |
| State / province | New Mexico |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 29.2 | 28.2 | 30.2 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 76 | WT% | EDXRF | |
| TIO2 | 0.18 | WT% | EDXRF | |
| AL2O3 | 12 | WT% | EDXRF | |
| FEO | 1.05 | WT% | EDXRF | |
| MNO | 0.05 | WT% | EDXRF | |
| MGO | -1 | WT% | EDXRF | |
| CAO | 0.37 | WT% | EDXRF | |
| NA2O | 3.4 | WT% | EDXRF | |
| K2O | 4.71 | WT% | EDXRF | |
| TOTAL | 97.76 | WT% | EDXRF | |
| BA | 331 | PPM | EDXRF | |
| CR | 4.9 | PPM | EDXRF | |
| HF | 8.1 | PPM | EDXRF | |
| NI | -4 | PPM | EDXRF | |
| RB | 181 | PPM | EDXRF | |
| SC | 3.5 | PPM | EDXRF | |
| SR | 80 | PPM | EDXRF | |
| TA | 1.1 | PPM | EDXRF | |
| TH | 20 | PPM | EDXRF | |
| U | 5 | PPM | EDXRF | |
| V | 13 | PPM | EDXRF | |
| Y | 40 | PPM | EDXRF | |
| ZN | 19 | PPM | EDXRF | |
| ZR | 223 | PPM | EDXRF | |
| LA | 40.9 | PPM | EDXRF | |
| CE | 72 | PPM | EDXRF | |
| ND | 32 | PPM | EDXRF | |
| SM | -0.5 | PPM | EDXRF | |
| EU | 0.35 | PPM | EDXRF | |
| TB | 0.51 | PPM | EDXRF | |
| YB | 3.1 | PPM | EDXRF | |
| LU | 0.53 | PPM | EDXRF |