Sample 222
NavDat sample number 17701 · RHYOLITE
Sample
| Sample ID | 222 |
|---|---|
| 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 | 33.4819 |
|---|---|
| Longitude | -107.517 |
| Location | Alamosa Creek |
| State / province | New Mexico |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 31.5 | 28.9 | 34.1 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 74 | WT% | EDXRF | |
| TIO2 | 0.17 | WT% | EDXRF | |
| AL2O3 | 12.5 | WT% | EDXRF | |
| FEO | 1.75 | WT% | EDXRF | |
| MNO | 0.13 | WT% | EDXRF | |
| MGO | -1 | WT% | EDXRF | |
| CAO | 0.99 | WT% | EDXRF | |
| NA2O | 4.39 | WT% | EDXRF | |
| K2O | 4.55 | WT% | EDXRF | |
| TOTAL | 97.58 | WT% | EDXRF | |
| BA | 265 | PPM | EDXRF | |
| CR | -5 | PPM | EDXRF | |
| HF | 24.8 | PPM | EDXRF | |
| NI | 9 | PPM | EDXRF | |
| RB | 483 | PPM | EDXRF | |
| SC | 6 | PPM | EDXRF | |
| SR | 14 | PPM | EDXRF | |
| TA | 5.5 | PPM | EDXRF | |
| TH | 58.6 | PPM | EDXRF | |
| U | 18.1 | PPM | EDXRF | |
| V | 16 | PPM | EDXRF | |
| Y | 72 | PPM | EDXRF | |
| ZN | 167 | PPM | EDXRF | |
| ZR | 613 | PPM | EDXRF | |
| LA | 41.9 | PPM | EDXRF | |
| CE | 91 | PPM | EDXRF | |
| ND | 28 | PPM | EDXRF | |
| SM | 5.2 | PPM | EDXRF | |
| EU | 0.59 | PPM | EDXRF | |
| TB | 1.4 | PPM | EDXRF | |
| YB | 10.18 | PPM | EDXRF | |
| LU | 1.92 | PPM | EDXRF |