Sample DS85-116
NavDat sample number 45768 · ANDESITE
Sample
| Sample ID | DS85-116 |
|---|---|
| Rock name | ANDESITE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
Location
| Latitude | 37.964 |
|---|---|
| Longitude | -106.915 |
| Location | E Willow Creek |
| State / province | COLORADO |
| Formation | Nelson Mountain Caldera cycle, volcanics of Stewart Peak |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 26.5 | 26.1 | 26.9 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 58.45 | WT% | XRF | |
| TIO2 | 1.05446 | WT% | XRF | |
| AL2O3 | 17.5304 | WT% | XRF | |
| FE2O3 | 7.13789 | WT% | XRF | |
| MGO | 2.95046 | WT% | XRF | |
| CAO | 6.32676 | WT% | XRF | |
| NA2O | 3.1938 | WT% | XRF | |
| K2O | 3.36616 | WT% | XRF | |
| P2O5 | 0.476535 | WT% | XRF | |
| MNO | 0.141947 | WT% | XRF | |
| LOI | 1.38 | WT% | XRF | |
| TOTAL | 100.63 | WT% | XRF | |
| RB | 90 | PPM | XRF | |
| SR | 782 | PPM | XRF | |
| Y | 28 | PPM | XRF | |
| ZR | 196 | PPM | XRF | |
| NB | 18 | PPM | XRF | |
| RB | 88 | PPM | INAA | |
| BA | 1060 | PPM | INAA | |
| SR | 777 | PPM | INAA | |
| TH | 6.95 | PPM | INAA | |
| U | 2.5 | PPM | INAA | |
| LA | 41.1 | PPM | INAA | |
| CE | 83.7 | PPM | INAA | |
| ND | 40.2 | PPM | INAA | |
| SM | 7.81 | PPM | INAA | |
| EU | 2.03 | PPM | INAA | |
| GD | 6.67 | PPM | INAA | |
| TB | 0.933 | PPM | INAA | |
| TM | 0.447 | PPM | INAA | |
| YB | 2.69 | PPM | INAA | |
| LU | 0.39 | PPM | INAA | |
| TA | 0.835 | PPM | INAA | |
| ZR | 199 | PPM | INAA | |
| HF | 4.81 | PPM | INAA | |
| SB | 0.0693 | PPM | INAA | |
| SC | 15.8 | PPM | INAA | |
| CR | 1.75 | PPM | INAA | |
| CO | 18.7 | PPM | INAA | |
| NI | 6.69 | PPM | INAA | |
| ZN | 96.2 | PPM | INAA |