Sample 238
NavDat sample number 17717 · RHYOLITE
Sample
| Sample ID | 238 |
|---|---|
| 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 | 33.5069 |
|---|---|
| Longitude | -108.576 |
| Location | Fall Canyon |
| State / province | New Mexico |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 30.5 | 26.7 | 34.3 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 75.8 | WT% | EDXRF | |
| TIO2 | 0.08 | WT% | EDXRF | |
| AL2O3 | 12.7 | WT% | EDXRF | |
| FEO | 0.84 | WT% | EDXRF | |
| FE2O3 | 0.48 | WT% | EDXRF | |
| MNO | 0.13 | WT% | EDXRF | |
| MGO | 0.24 | WT% | EDXRF | |
| CAO | 0.44 | WT% | EDXRF | |
| NA2O | 3 | WT% | EDXRF | |
| K2O | 5.1 | WT% | EDXRF | |
| H2O_PLUS | 1.1 | WT% | EDXRF | |
| TOTAL | 99.99 | WT% | EDXRF | |
| BA | 83 | PPM | EDXRF | |
| CR | -5 | PPM | EDXRF | |
| HF | 6.5 | PPM | EDXRF | |
| NI | -4 | PPM | EDXRF | |
| RB | 279 | PPM | EDXRF | |
| SC | 2.5 | PPM | EDXRF | |
| SR | 27 | PPM | EDXRF | |
| TA | 1.4 | PPM | EDXRF | |
| TH | 11.7 | PPM | EDXRF | |
| V | -10 | PPM | EDXRF | |
| Y | 42 | PPM | EDXRF | |
| ZN | 17 | PPM | EDXRF | |
| ZR | 51 | PPM | EDXRF | |
| LA | 26.5 | PPM | EDXRF | |
| CE | 108 | PPM | EDXRF | |
| SM | 3.6 | PPM | EDXRF | |
| EU | 1.5 | PPM | EDXRF | |
| TB | 0.76 | PPM | EDXRF | |
| YB | 3.33 | PPM | EDXRF | |
| LU | 0.56 | PPM | EDXRF |