Sample BFC14
NavDat sample number 91822 · PYROCLASTIC-FALL
Sample
| Sample ID | BFC14 |
|---|---|
| Rock name | PYROCLASTIC-FALL |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
Location
| Latitude | 37.571 |
|---|---|
| Longitude | -106.758 |
| Location | mouth Columbine Creek |
| State / province | COLORADO |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 27.93 | 27.75 | 28.11 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 67.81 | WT% | XRF | |
| TIO2 | 0.45 | WT% | XRF | |
| AL2O3 | 15.23 | WT% | XRF | |
| FE2O3 | 4 | WT% | XRF | |
| MGO | 1.2 | WT% | XRF | |
| CAO | 2.99 | WT% | XRF | |
| NA2O | 3.89 | WT% | XRF | |
| K2O | 3.87 | WT% | XRF | |
| P2O5 | 0.18 | WT% | XRF | |
| MNO | 0.09 | WT% | XRF | |
| LOI | 1.64 | WT% | XRF | |
| TOTAL | 99.71 | WT% | XRF | |
| ZN | 57 | PPM | XRF | |
| RB | 141 | PPM | XRF | |
| SR | 444 | PPM | XRF | |
| Y | 22 | PPM | XRF | |
| ZR | 188 | PPM | XRF | |
| NB | 17 | PPM | XRF | |
| PB | 19 | PPM | XRF | |
| TH | 14 | PPM | XRF | |
| BA | 839 | PPM | XRF | |
| LA | 41 | PPM | XRF | |
| CE | 73 | PPM | XRF | |
| ND | 27 | PPM | XRF | |
| CU | 9 | PPM | XRF | |
| V | 48 | PPM | XRF | |
| CR | 5.1 | PPM | XRF | |
| GA | 17 | PPM | XRF | |
| NI | 5.6 | PPM | XRF |