Sample BFC51
NavDat sample number 91828 · PYROCLASTIC-FALL
Sample
| Sample ID | BFC51 |
|---|---|
| Rock name | PYROCLASTIC-FALL |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
Location
| Latitude | 37.54 |
|---|---|
| Longitude | -106.793 |
| Location | east of Big Meadows |
| 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 | 67.64 | WT% | XRF | |
| TIO2 | 0.47 | WT% | XRF | |
| AL2O3 | 15.57 | WT% | XRF | |
| FE2O3 | 3.75 | WT% | XRF | |
| MGO | 1.15 | WT% | XRF | |
| CAO | 2.92 | WT% | XRF | |
| NA2O | 3.68 | WT% | XRF | |
| K2O | 4.43 | WT% | XRF | |
| P2O5 | 0.19 | WT% | XRF | |
| MNO | 0.09 | WT% | XRF | |
| LOI | 1.75 | WT% | XRF | |
| TOTAL | 99.89 | WT% | XRF | |
| ZN | 56 | PPM | XRF | |
| RB | 121 | PPM | XRF | |
| SR | 442 | PPM | XRF | |
| Y | 21 | PPM | XRF | |
| ZR | 190 | PPM | XRF | |
| NB | 17 | PPM | XRF | |
| PB | 18 | PPM | XRF | |
| TH | 14 | PPM | XRF | |
| BA | 844 | PPM | XRF | |
| LA | 42 | PPM | XRF | |
| CE | 74 | PPM | XRF | |
| ND | 26 | PPM | XRF | |
| CU | 7 | PPM | XRF | |
| V | 51 | PPM | XRF | |
| CR | 5.3 | PPM | XRF | |
| GA | 18 | PPM | XRF | |
| NI | 6.5 | PPM | XRF |