Sample 207
NavDat sample number 17686 · RHYOLITE
Sample
| Sample ID | 207 |
|---|---|
| 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 | 33.8942 |
|---|---|
| Longitude | -107.401 |
| 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 | 78 | WT% | EDXRF | |
| TIO2 | 0.12 | WT% | EDXRF | |
| AL2O3 | 12.5 | WT% | EDXRF | |
| FEO | 0.79 | WT% | EDXRF | |
| MNO | 0.05 | WT% | EDXRF | |
| MGO | -1 | WT% | EDXRF | |
| CAO | 0.28 | WT% | EDXRF | |
| NA2O | 3 | WT% | EDXRF | |
| K2O | 4.59 | WT% | EDXRF | |
| TOTAL | 99.33 | WT% | EDXRF | |
| BA | -50 | PPM | EDXRF | |
| CR | 7 | PPM | EDXRF | |
| NI | -4 | PPM | EDXRF | |
| RB | 250 | PPM | EDXRF | |
| SR | 21 | PPM | EDXRF | |
| TH | 28.5 | PPM | EDXRF | |
| U | 5.5 | PPM | EDXRF | |
| V | 10 | PPM | EDXRF | |
| Y | 50 | PPM | EDXRF | |
| ZN | 42 | PPM | EDXRF | |
| ZR | 91 | PPM | EDXRF |