Sample DS85-105
NavDat sample number 46029 · RHYOLITE
Sample
| Sample ID | DS85-105 |
|---|---|
| Rock name | RHYOLITE |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
Location
| Latitude | 37.896 |
|---|---|
| Longitude | -106.907 |
| Location | First Fork, Willow Ck. |
| State / province | COLORADO |
| Formation | Bachelor Caldera Cycle, Intracaldera Bachelor Member, upper vitrophyric tuff |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 27.35 | 27.25 | 27.45 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 73.18 | WT% | XRF | |
| TIO2 | 0.239169 | WT% | XRF | |
| AL2O3 | 13.9134 | WT% | XRF | |
| FE2O3 | 1.71578 | WT% | XRF | |
| MGO | 0.395149 | WT% | XRF | |
| CAO | 1.42462 | WT% | XRF | |
| NA2O | 3.68113 | WT% | XRF | |
| K2O | 4.77299 | WT% | XRF | |
| P2O5 | 0.062392 | WT% | XRF | |
| MNO | 0 | WT% | XRF | |
| LOI | 3.81 | WT% | XRF | |
| TOTAL | 99.3846 | WT% | XRF | |
| RB | 139 | PPM | INAA | |
| BA | 515 | PPM | INAA | |
| SR | 152 | PPM | INAA | |
| TH | 17.8 | PPM | INAA | |
| U | 6.07 | PPM | INAA | |
| LA | 49.1 | PPM | INAA | |
| CE | 91.7 | PPM | INAA | |
| ND | 37 | PPM | INAA | |
| SM | 6.07 | PPM | INAA | |
| EU | 0.898 | PPM | INAA | |
| GD | 5.39 | PPM | INAA | |
| TB | 0.705 | PPM | INAA | |
| TM | 0.428 | PPM | INAA | |
| YB | 2.76 | PPM | INAA | |
| LU | 0.411 | PPM | INAA | |
| TA | 1.37 | PPM | INAA | |
| ZR | 148 | PPM | INAA | |
| HF | 5.36 | PPM | INAA | |
| SB | 0.719 | PPM | INAA | |
| SC | 4.34 | PPM | INAA | |
| CR | 1.1 | PPM | INAA | |
| CO | 1.74 | PPM | INAA | |
| ZN | 46 | PPM | INAA |