Sample 205
NavDat sample number 17684 · RHYOLITE
Sample
| Sample ID | 205 |
|---|---|
| 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 | 33.9483 |
|---|---|
| Longitude | -107.437 |
| Location | A-L peak |
| State / province | New Mexico |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 31.8 | 28 | 35 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 76 | WT% | EDXRF | |
| TIO2 | 0.1 | WT% | EDXRF | |
| AL2O3 | 12 | WT% | EDXRF | |
| FEO | 0.75 | WT% | EDXRF | |
| MNO | 0.07 | WT% | EDXRF | |
| MGO | -1 | WT% | EDXRF | |
| CAO | 0.49 | WT% | EDXRF | |
| NA2O | 3.88 | WT% | EDXRF | |
| K2O | 4.14 | WT% | EDXRF | |
| TOTAL | 97.43 | WT% | EDXRF | |
| BA | -30 | PPM | EDXRF | |
| CR | 5.7 | PPM | EDXRF | |
| HF | 40 | PPM | EDXRF | |
| NI | -4 | PPM | EDXRF | |
| RB | 258 | PPM | EDXRF | |
| SC | 2.4 | PPM | EDXRF | |
| SR | 42 | PPM | EDXRF | |
| TA | 2.1 | PPM | EDXRF | |
| TH | 27.7 | PPM | EDXRF | |
| U | 8.3 | PPM | EDXRF | |
| V | 12 | PPM | EDXRF | |
| Y | 50 | PPM | EDXRF | |
| ZN | 60 | PPM | EDXRF | |
| ZR | 91 | PPM | EDXRF | |
| LA | 34.4 | PPM | EDXRF | |
| CE | 59 | PPM | EDXRF | |
| ND | 43 | PPM | EDXRF | |
| SM | -0.5 | PPM | EDXRF | |
| EU | 0.24 | PPM | EDXRF | |
| TB | 0.48 | PPM | EDXRF | |
| YB | 3.02 | PPM | EDXRF | |
| LU | 0.67 | PPM | EDXRF |