Sample 280
NavDat sample number 17754 · RHYODACITE
Sample
| Sample ID | 280 |
|---|---|
| Rock name | RHYODACITE |
| 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 | 33.0347 |
|---|---|
| Longitude | -108.282 |
| 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 | 853 | PPM | EDXRF | |
| CR | -5 | PPM | EDXRF | |
| HF | 8.3 | PPM | EDXRF | |
| NI | 13 | PPM | EDXRF | |
| RB | 279 | PPM | EDXRF | |
| SC | 6.7 | PPM | EDXRF | |
| SR | 310 | PPM | EDXRF | |
| TA | 1.5 | PPM | EDXRF | |
| TH | 38.7 | PPM | EDXRF | |
| V | 44 | PPM | EDXRF | |
| Y | 39 | PPM | EDXRF | |
| ZN | 54 | PPM | EDXRF | |
| ZR | 278 | PPM | EDXRF | |
| LA | 59.9 | PPM | EDXRF | |
| CE | 136 | PPM | EDXRF | |
| ND | 83 | PPM | EDXRF | |
| SM | 7.7 | PPM | EDXRF | |
| EU | 1.16 | PPM | EDXRF | |
| TB | 0.72 | PPM | EDXRF | |
| YB | 3.01 | PPM | EDXRF | |
| LU | 0.49 | PPM | EDXRF | |
| SIO2 | 66.2 | WT% | EDXRF | |
| TIO2 | 0.68 | WT% | EDXRF | |
| AL2O3 | 14.7 | WT% | EDXRF | |
| FEO | 1.1 | WT% | EDXRF | |
| FE2O3 | 2.3 | WT% | EDXRF | |
| MNO | 0.05 | WT% | EDXRF | |
| MGO | 1.6 | WT% | EDXRF | |
| CAO | 2.7 | WT% | EDXRF | |
| NA2O | 3.1 | WT% | EDXRF | |
| K2O | 4.2 | WT% | EDXRF | |
| P2O5 | 0.16 | WT% | EDXRF | |
| H2O_PLUS | 3.26 | WT% | EDXRF | |
| TOTAL | 100.22 | WT% | EDXRF |