Sample 285
NavDat sample number 17759 · ANDESITE
Sample
| Sample ID | 285 |
|---|---|
| Rock name | ANDESITE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
| Comment | Maximum and minimum ages given are approximations based on average error of previous K-Ar dating. |
Location
| Latitude | 33.0528 |
|---|---|
| Longitude | -108.153 |
| 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 | 60.98 | WT% | EDXRF | |
| TIO2 | 0.69 | WT% | EDXRF | |
| AL2O3 | 16.58 | WT% | EDXRF | |
| FEO | 0.17 | WT% | EDXRF | |
| FE2O3 | 4.76 | WT% | EDXRF | |
| MNO | 0.06 | WT% | EDXRF | |
| MGO | 2.24 | WT% | EDXRF | |
| CAO | 4.32 | WT% | EDXRF | |
| NA2O | 3.95 | WT% | EDXRF | |
| K2O | 2.99 | WT% | EDXRF | |
| P2O5 | 0.24 | WT% | EDXRF | |
| H2O_PLUS | 1.31 | WT% | EDXRF | |
| TOTAL | 99.35 | WT% | EDXRF | |
| BA | 989 | PPM | EDXRF | |
| CR | 24 | PPM | EDXRF | |
| NI | 31 | PPM | EDXRF | |
| RB | 70 | PPM | EDXRF | |
| SR | 549 | PPM | EDXRF | |
| V | 66 | PPM | EDXRF | |
| Y | 21 | PPM | EDXRF | |
| ZN | 77 | PPM | EDXRF | |
| ZR | 249 | PPM | EDXRF |