Sample 502
NavDat sample number 17945 · RHYOLITE
Sample
| Sample ID | 502 |
|---|---|
| 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 | 33.4058 |
|---|---|
| Longitude | -108.637 |
| Location | Deadwood gulch |
| State / province | New Mexico |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 25 | 22 | 28 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 77 | WT% | EDXRF | |
| TIO2 | 0.05 | WT% | EDXRF | |
| AL2O3 | 11.5 | WT% | EDXRF | |
| FEO | 0.61 | WT% | EDXRF | |
| MNO | 0.03 | WT% | EDXRF | |
| MGO | 1 | WT% | EDXRF | |
| CAO | 2.6 | WT% | EDXRF | |
| NA2O | 0.5 | WT% | EDXRF | |
| K2O | 2.21 | WT% | EDXRF | |
| TOTAL | 95.5 | WT% | EDXRF | |
| BA | -50 | PPM | EDXRF | |
| CR | -4 | PPM | EDXRF | |
| NI | -4 | PPM | EDXRF | |
| RB | 106 | PPM | EDXRF | |
| SR | 2369 | PPM | EDXRF | |
| TH | 20.8 | PPM | EDXRF | |
| U | 3.7 | PPM | EDXRF | |
| V | -10 | PPM | EDXRF | |
| Y | 33 | PPM | EDXRF | |
| ZN | 35 | PPM | EDXRF | |
| ZR | -10 | PPM | EDXRF |