Sample 420
NavDat sample number 17882 · RHYOLITE
Sample
| Sample ID | 420 |
|---|---|
| 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 | 33.3914 |
|---|---|
| Longitude | -108.673 |
| Location | Apache springs |
| State / province | New Mexico |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 27.3 | 26.5 | 28.1 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 73 | WT% | EDXRF | |
| TIO2 | 0.24 | WT% | EDXRF | |
| AL2O3 | 16 | WT% | EDXRF | |
| FEO | 1.61 | WT% | EDXRF | |
| MNO | 0.05 | WT% | EDXRF | |
| MGO | -1 | WT% | EDXRF | |
| CAO | 0.64 | WT% | EDXRF | |
| NA2O | 0.35 | WT% | EDXRF | |
| K2O | 4.68 | WT% | EDXRF | |
| TOTAL | 96.57 | WT% | EDXRF | |
| BA | 291 | PPM | EDXRF | |
| CR | 10 | PPM | EDXRF | |
| HF | 7.2 | PPM | EDXRF | |
| NI | 5 | PPM | EDXRF | |
| RB | 260 | PPM | EDXRF | |
| SC | 4.5 | PPM | EDXRF | |
| SR | 85 | PPM | EDXRF | |
| TA | 1.4 | PPM | EDXRF | |
| TH | 29.6 | PPM | EDXRF | |
| U | 7.1 | PPM | EDXRF | |
| V | 16 | PPM | EDXRF | |
| Y | 57 | PPM | EDXRF | |
| ZN | 69 | PPM | EDXRF | |
| ZR | 192 | PPM | EDXRF | |
| LA | 33.7 | PPM | EDXRF | |
| CE | 63 | PPM | EDXRF | |
| ND | 15 | PPM | EDXRF | |
| SM | 5.8 | PPM | EDXRF | |
| EU | 0.55 | PPM | EDXRF | |
| TB | 0.62 | PPM | EDXRF | |
| YB | 4.57 | PPM | EDXRF | |
| LU | 0.82 | PPM | EDXRF |