Sample 279
NavDat sample number 17753 · DACITE
Sample
| Sample ID | 279 |
|---|---|
| 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 | 33.0511 |
|---|---|
| Longitude | -108.219 |
| 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 | 1225 | PPM | EDXRF | |
| CR | 46 | PPM | EDXRF | |
| HF | 8.7 | PPM | EDXRF | |
| NI | 21 | PPM | EDXRF | |
| RB | 225 | PPM | EDXRF | |
| SC | 8.8 | PPM | EDXRF | |
| SR | 397 | PPM | EDXRF | |
| TA | 1.3 | PPM | EDXRF | |
| TH | 32.3 | PPM | EDXRF | |
| V | 59 | PPM | EDXRF | |
| Y | 37 | PPM | EDXRF | |
| ZN | 54 | PPM | EDXRF | |
| ZR | 280 | PPM | EDXRF | |
| LA | 69 | PPM | EDXRF | |
| CE | 116 | PPM | EDXRF | |
| SM | 10.7 | PPM | EDXRF | |
| EU | 1.62 | PPM | EDXRF | |
| TB | 1.07 | PPM | EDXRF | |
| YB | 3.14 | PPM | EDXRF | |
| LU | 0.45 | PPM | EDXRF | |
| SIO2 | 63.7 | WT% | EDXRF | |
| TIO2 | 0.76 | WT% | EDXRF | |
| AL2O3 | 15.5 | WT% | EDXRF | |
| FEO | 0.24 | WT% | EDXRF | |
| FE2O3 | 4.9 | WT% | EDXRF | |
| MNO | 0.02 | WT% | EDXRF | |
| MGO | 1.2 | WT% | EDXRF | |
| CAO | 3.3 | WT% | EDXRF | |
| NA2O | 3.5 | WT% | EDXRF | |
| K2O | 4.1 | WT% | EDXRF | |
| P2O5 | 0.19 | WT% | EDXRF | |
| H2O_PLUS | 2.5 | WT% | EDXRF | |
| TOTAL | 100.08 | WT% | EDXRF |