Sample 41
NavDat sample number 17564 · DACITE
Sample
| Sample ID | 41 |
|---|---|
| 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 | 34.228 |
|---|---|
| Longitude | -107.913 |
| Location | Spears formation |
| State / province | New Mexico |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 37.1 | 35.6 | 38.6 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 62.28 | WT% | EDXRF | |
| TIO2 | 0.6 | WT% | EDXRF | |
| AL2O3 | 16.5 | WT% | EDXRF | |
| FEO | 0.69 | WT% | EDXRF | |
| FE2O3 | 4.08 | WT% | EDXRF | |
| MNO | 0.07 | WT% | EDXRF | |
| MGO | 2.1 | WT% | EDXRF | |
| CAO | 4.2 | WT% | EDXRF | |
| NA2O | 4.4 | WT% | EDXRF | |
| K2O | 2.4 | WT% | EDXRF | |
| P2O5 | 0.24 | WT% | EDXRF | |
| H2O_PLUS | 1.57 | WT% | EDXRF | |
| TOTAL | 99.43 | WT% | EDXRF | |
| BA | 1285 | PPM | EDXRF | |
| CR | 21 | PPM | EDXRF | |
| HF | 4.6 | PPM | EDXRF | |
| NI | 19 | PPM | EDXRF | |
| RB | 47 | PPM | EDXRF | |
| SC | 7.8 | PPM | EDXRF | |
| SR | 1142 | PPM | EDXRF | |
| TA | 4.4 | PPM | EDXRF | |
| TH | 5.5 | PPM | EDXRF | |
| U | 0.9 | PPM | EDXRF | |
| V | 66 | PPM | EDXRF | |
| Y | 22 | PPM | EDXRF | |
| ZN | 77 | PPM | EDXRF | |
| ZR | 212 | PPM | EDXRF | |
| CE | 53 | PPM | EDXRF | |
| ND | 20 | PPM | EDXRF | |
| SM | 4.9 | PPM | EDXRF | |
| EU | 1.35 | PPM | EDXRF | |
| TB | 1.03 | PPM | EDXRF | |
| YB | 1.41 | PPM | EDXRF | |
| LU | 0.3 | PPM | EDXRF |