Sample BFC 18
NavDat sample number 39441 · RHYOLITE
Sample
| Sample ID | BFC 18 |
|---|---|
| Rock name | RHYOLITE |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
Location
| Latitude | -106.668 |
|---|---|
| Longitude | -37.51 |
| Location | north of Columbine Creek |
| State / province | COLORADO |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 28.5 | 28.4 | 28.6 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 65.57 | WT% | XRF | |
| TIO2 | 0.54 | WT% | XRF | |
| AL2O3 | 15.99 | WT% | XRF | |
| FE2O3 | 4.76 | WT% | XRF | |
| MGO | 1.24 | WT% | XRF | |
| CAO | 3.5 | WT% | XRF | |
| NA2O | 3.92 | WT% | XRF | |
| K2O | 4.07 | WT% | XRF | |
| P2O5 | 0.22 | WT% | XRF | |
| MNO | 0.1 | WT% | XRF | |
| LOI | 0.71 | WT% | XRF | |
| TOTAL | 99.91 | WT% | XRF | |
| ZN | 62 | PPM | XRF | |
| RB | 106 | PPM | XRF | |
| SR | 519 | PPM | XRF | |
| Y | 24 | PPM | XRF | |
| ZR | 198 | PPM | XRF | |
| NB | 17 | PPM | XRF | |
| PB | 19 | PPM | XRF | |
| TH | 12 | PPM | XRF | |
| BA | 871 | PPM | XRF | |
| LA | 41 | PPM | XRF | |
| CE | 77 | PPM | XRF | |
| ND | 31 | PPM | XRF | |
| CU | 13 | PPM | XRF | |
| V | 64 | PPM | XRF | |
| CR | 8 | PPM | XRF | |
| GA | 19 | PPM | XRF | |
| NI | 6 | PPM | XRF |