Sample 94L-9B
NavDat sample number 45693 · DACITE
Sample
| Sample ID | 94L-9B |
|---|---|
| Rock name | DACITE |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
Location
| Latitude | 37.787 |
|---|---|
| Longitude | -106.797 |
| Location | top of lower unit, SW of Mill Park |
| State / province | COLORADO |
| Formation | Fisher Dacite, Wagon Wheel Gap flow, Creede Caldera cycle |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 26.26 | 26.22 | 26.3 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 62.73 | WT% | XRF | |
| TIO2 | 0.69 | WT% | XRF | |
| AL2O3 | 16.04 | WT% | XRF | |
| FE2O3 | 5.56 | WT% | XRF | |
| MGO | 2.23 | WT% | XRF | |
| CAO | 4.32 | WT% | XRF | |
| NA2O | 3.5 | WT% | XRF | |
| K2O | 3.53 | WT% | XRF | |
| P2O5 | 0.34 | WT% | XRF | |
| MNO | 0.1 | WT% | XRF | |
| LOI | 2.1 | WT% | XRF | |
| TOTAL | 99.05 | WT% | XRF | |
| ZN | 49 | PPM | XRF | |
| RB | 99 | PPM | XRF | |
| SR | 660 | PPM | XRF | |
| Y | 21 | PPM | XRF | |
| ZR | 176 | PPM | XRF | |
| NB | 15 | PPM | XRF | |
| BA | 1000 | PPM | XRF | |
| LA | -30 | PPM | XRF | |
| CE | 57 | PPM | XRF | |
| CU | 11 | PPM | XRF | |
| CR | -20 | PPM | XRF | |
| NI | -10 | PPM | XRF |