Sample BFC31
NavDat sample number 42910 · PYROCLASTIC-FALL
Sample
| Sample ID | BFC31 |
|---|---|
| Rock name | PYROCLASTIC-FALL |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
Location
| Latitude | 37.547 |
|---|---|
| Longitude | -106.774 |
| Location | lower Pass 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 | 67.87 | WT% | XRF | |
| TIO2 | 0.44 | WT% | XRF | |
| AL2O3 | 15.5 | WT% | XRF | |
| FE2O3 | 3.84 | WT% | XRF | |
| MGO | 1.12 | WT% | XRF | |
| CAO | 2.98 | WT% | XRF | |
| NA2O | 3.74 | WT% | XRF | |
| K2O | 4.1 | WT% | XRF | |
| P2O5 | 0.19 | WT% | XRF | |
| MNO | 0.07 | WT% | XRF | |
| LOI | 0.84 | WT% | XRF | |
| TOTAL | 99.85 | WT% | XRF | |
| ZN | 52 | PPM | XRF | |
| RB | 93 | PPM | XRF | |
| SR | 461 | PPM | XRF | |
| Y | 20 | PPM | XRF | |
| ZR | 176 | PPM | XRF | |
| NB | 17 | PPM | XRF | |
| PB | 19 | PPM | XRF | |
| TH | 14 | PPM | XRF | |
| BA | 895 | PPM | XRF | |
| LA | 42 | PPM | XRF | |
| CE | 72 | PPM | XRF | |
| ND | 26 | PPM | XRF | |
| CU | 8 | PPM | XRF | |
| V | 47 | PPM | XRF | |
| CR | 5.9 | PPM | XRF | |
| GA | 18 | PPM | XRF | |
| NI | 6.3 | PPM | XRF |