Sample 282
NavDat sample number 17756 · DACITE
Sample
| Sample ID | 282 |
|---|---|
| Rock name | DACITE |
| 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 | 33.0914 |
|---|---|
| Longitude | -108.16 |
| Location | Alum Mtn., salt creek member |
| 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 |
|---|---|---|---|---|
| SIO2 | 62.9 | WT% | EDXRF | |
| TIO2 | 0.65 | WT% | EDXRF | |
| AL2O3 | 16.08 | WT% | EDXRF | |
| FEO | 0.59 | WT% | EDXRF | |
| FE2O3 | 4.42 | WT% | EDXRF | |
| MNO | 0.04 | WT% | EDXRF | |
| MGO | 1.64 | WT% | EDXRF | |
| CAO | 3.3 | WT% | EDXRF | |
| NA2O | 3.74 | WT% | EDXRF | |
| K2O | 4.04 | WT% | EDXRF | |
| P2O5 | 0.28 | WT% | EDXRF | |
| H2O_PLUS | 1.12 | WT% | EDXRF | |
| TOTAL | 99.5 | WT% | EDXRF | |
| BA | 1285 | PPM | EDXRF | |
| CR | 29 | PPM | EDXRF | |
| NI | 34 | PPM | EDXRF | |
| RB | 187 | PPM | EDXRF | |
| SR | 493 | PPM | EDXRF | |
| V | 70 | PPM | EDXRF | |
| Y | 35 | PPM | EDXRF | |
| ZN | 73 | PPM | EDXRF | |
| ZR | 314 | PPM | EDXRF |