Sample 179
NavDat sample number 17661 · RHYOLITE
Sample
| Sample ID | 179 |
|---|---|
| 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 | 32.7219 |
|---|---|
| Longitude | -107.583 |
| Location | Mimbres peak |
| 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 | 76 | WT% | EDXRF | |
| TIO2 | 0.08 | WT% | EDXRF | |
| AL2O3 | 14 | WT% | EDXRF | |
| FEO | 0.64 | WT% | EDXRF | |
| MNO | 0.06 | WT% | EDXRF | |
| MGO | -1 | WT% | EDXRF | |
| CAO | 0.45 | WT% | EDXRF | |
| NA2O | 3.5 | WT% | EDXRF | |
| K2O | 5.02 | WT% | EDXRF | |
| TOTAL | 99.75 | WT% | EDXRF | |
| BA | -50 | PPM | EDXRF | |
| CR | 7 | PPM | EDXRF | |
| NI | -4 | PPM | EDXRF | |
| RB | 226 | PPM | EDXRF | |
| SR | 22 | PPM | EDXRF | |
| TH | 19.7 | PPM | EDXRF | |
| U | 2.3 | PPM | EDXRF | |
| V | -10 | PPM | EDXRF | |
| Y | 33 | PPM | EDXRF | |
| ZN | 20 | PPM | EDXRF | |
| ZR | 75 | PPM | EDXRF |