Sample 276
NavDat sample number 17750 · DACITE
Sample
| Sample ID | 276 |
|---|---|
| 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 | 33.75 |
|---|---|
| Longitude | -108.207 |
| 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 | 1082 | PPM | EDXRF | |
| CR | -5 | PPM | EDXRF | |
| HF | 12.2 | PPM | EDXRF | |
| NI | 20 | PPM | EDXRF | |
| RB | 264 | PPM | EDXRF | |
| SC | 9 | PPM | EDXRF | |
| SR | 251 | PPM | EDXRF | |
| TA | 1.1 | PPM | EDXRF | |
| TH | 27 | PPM | EDXRF | |
| U | 5.8 | PPM | EDXRF | |
| V | 43 | PPM | EDXRF | |
| Y | 40 | PPM | EDXRF | |
| ZN | 63 | PPM | EDXRF | |
| ZR | 412 | PPM | EDXRF | |
| LA | 60.7 | PPM | EDXRF | |
| CE | 117 | PPM | EDXRF | |
| SM | 9.7 | PPM | EDXRF | |
| EU | 1.57 | PPM | EDXRF | |
| TB | 1.06 | PPM | EDXRF | |
| YB | 2.24 | PPM | EDXRF | |
| LU | 0.49 | PPM | EDXRF | |
| SIO2 | 65.3 | WT% | EDXRF | |
| TIO2 | 0.85 | WT% | EDXRF | |
| AL2O3 | 15.5 | WT% | EDXRF | |
| FEO | 0.4 | WT% | EDXRF | |
| FE2O3 | 3.9 | WT% | EDXRF | |
| MNO | 0.06 | WT% | EDXRF | |
| MGO | 1.8 | WT% | EDXRF | |
| CAO | 1.2 | WT% | EDXRF | |
| NA2O | 3.3 | WT% | EDXRF | |
| K2O | 5.3 | WT% | EDXRF | |
| P2O5 | 0.18 | WT% | EDXRF | |
| H2O_PLUS | 2.25 | WT% | EDXRF | |
| TOTAL | 100.15 | WT% | EDXRF |