Sample 439
NavDat sample number 17900 · RHYOLITE
Sample
| Sample ID | 439 |
|---|---|
| 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 | 33.3722 |
|---|---|
| Longitude | -108.686 |
| State / province | New Mexico |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 27 | 23 | 31 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| BA | -50 | PPM | EDXRF | |
| CR | -5 | PPM | EDXRF | |
| HF | 4.3 | PPM | EDXRF | |
| NI | -4 | PPM | EDXRF | |
| RB | 230 | PPM | EDXRF | |
| SC | 2.4 | PPM | EDXRF | |
| SR | 12 | PPM | EDXRF | |
| TA | 1.7 | PPM | EDXRF | |
| TH | 24 | PPM | EDXRF | |
| V | -10 | PPM | EDXRF | |
| Y | 30 | PPM | EDXRF | |
| ZN | 30 | PPM | EDXRF | |
| ZR | 64 | PPM | EDXRF | |
| LA | 28.6 | PPM | EDXRF | |
| CE | 75 | PPM | EDXRF | |
| SM | 1.4 | PPM | EDXRF | |
| EU | 0.31 | PPM | EDXRF | |
| TB | 0.31 | PPM | EDXRF | |
| YB | 2.19 | PPM | EDXRF | |
| LU | 0.45 | PPM | EDXRF | |
| SIO2 | 75.5 | WT% | EDXRF | |
| TIO2 | 0.11 | WT% | EDXRF | |
| AL2O3 | 12.8 | WT% | EDXRF | |
| FEO | 0.44 | WT% | EDXRF | |
| FE2O3 | 0.27 | WT% | EDXRF | |
| MNO | 0.03 | WT% | EDXRF | |
| MGO | 0.06 | WT% | EDXRF | |
| CAO | 0.47 | WT% | EDXRF | |
| NA2O | 3.6 | WT% | EDXRF | |
| K2O | 4.8 | WT% | EDXRF | |
| TOTAL | 99.09 | WT% | EDXRF |