Sample 449
NavDat sample number 17909 · RHYOLITE
Sample
| Sample ID | 449 |
|---|---|
| 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 | 33.2536 |
|---|---|
| Longitude | -108.791 |
| State / province | New Mexico |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 27 | 23 | 31 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| BA | -50 | PPM | EDXRF | |
| CR | -4 | PPM | EDXRF | |
| NI | -4 | PPM | EDXRF | |
| RB | 190 | PPM | EDXRF | |
| SR | 46 | PPM | EDXRF | |
| U | 3.1 | PPM | EDXRF | |
| V | -10 | PPM | EDXRF | |
| Y | 26 | PPM | EDXRF | |
| ZN | -15 | PPM | EDXRF | |
| ZR | 63 | PPM | EDXRF | |
| SIO2 | 77.8 | WT% | EDXRF | |
| TIO2 | 0.13 | WT% | EDXRF | |
| AL2O3 | 12.3 | WT% | EDXRF | |
| FEO | 0.16 | WT% | EDXRF | |
| FE2O3 | 0.42 | WT% | EDXRF | |
| MGO | 0.24 | WT% | EDXRF | |
| CAO | 0.31 | WT% | EDXRF | |
| NA2O | 2.4 | WT% | EDXRF | |
| K2O | 4.3 | WT% | EDXRF | |
| H2O_PLUS | 1.57 | WT% | EDXRF | |
| TOTAL | 99.7 | WT% | EDXRF |