Sample 278
NavDat sample number 17752 · RHYOLITE
Sample
| Sample ID | 278 |
|---|---|
| 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 | 33.0503 |
|---|---|
| Longitude | -108.212 |
| Location | Alum Mtn Cmplx |
| State / province | New Mexico |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 29.7 | 28.7 | 30.7 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| BA | 1494 | PPM | EDXRF | |
| CR | -5 | PPM | EDXRF | |
| HF | 11.6 | PPM | EDXRF | |
| NI | -4 | PPM | EDXRF | |
| RB | 1 | PPM | EDXRF | |
| SC | 7.3 | PPM | EDXRF | |
| SR | 100 | PPM | EDXRF | |
| TA | 1.1 | PPM | EDXRF | |
| TH | 17.3 | PPM | EDXRF | |
| U | 4.3 | PPM | EDXRF | |
| V | 26 | PPM | EDXRF | |
| Y | 40 | PPM | EDXRF | |
| ZN | -15 | PPM | EDXRF | |
| ZR | 604 | PPM | EDXRF | |
| LA | 61.3 | PPM | EDXRF | |
| CE | 111 | PPM | EDXRF | |
| SM | 11.2 | PPM | EDXRF | |
| EU | 2.37 | PPM | EDXRF | |
| TB | 1.36 | PPM | EDXRF | |
| YB | 3.75 | PPM | EDXRF | |
| LU | 0.64 | PPM | EDXRF | |
| SIO2 | 71.4 | WT% | EDXRF | |
| TIO2 | 0.54 | WT% | EDXRF | |
| AL2O3 | 14.7 | WT% | EDXRF | |
| FEO | 0.1 | WT% | EDXRF | |
| FE2O3 | 1.4 | WT% | EDXRF | |
| MNO | 0.13 | WT% | EDXRF | |
| MGO | 0.27 | WT% | EDXRF | |
| CAO | 0.14 | WT% | EDXRF | |
| NA2O | 3.2 | WT% | EDXRF | |
| K2O | 5.5 | WT% | EDXRF | |
| P2O5 | 0.08 | WT% | EDXRF | |
| H2O_PLUS | 2.41 | WT% | EDXRF | |
| TOTAL | 99.98 | WT% | EDXRF |