Sample BFC12
NavDat sample number 91820 · PYROCLASTIC-FALL
Sample
| Sample ID | BFC12 |
|---|---|
| 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 | 68.82 | WT% | XRF | |
| TIO2 | 0.43 | WT% | XRF | |
| AL2O3 | 14.89 | WT% | XRF | |
| FE2O3 | 3.59 | WT% | XRF | |
| MGO | 0.96 | WT% | XRF | |
| CAO | 2.92 | WT% | XRF | |
| NA2O | 3.82 | WT% | XRF | |
| K2O | 4.22 | WT% | XRF | |
| P2O5 | 0.18 | WT% | XRF | |
| MNO | 0.06 | WT% | XRF | |
| LOI | 0.77 | WT% | XRF | |
| TOTAL | 99.89 | WT% | XRF | |
| ZN | 49 | PPM | XRF | |
| RB | 126 | PPM | XRF | |
| SR | 461 | PPM | XRF | |
| Y | 20 | PPM | XRF | |
| ZR | 168 | PPM | XRF | |
| NB | 16 | PPM | XRF | |
| PB | 16 | PPM | XRF | |
| TH | 13 | PPM | XRF | |
| BA | 822 | PPM | XRF | |
| LA | 43 | PPM | XRF | |
| CE | 80 | PPM | XRF | |
| ND | 31 | PPM | XRF | |
| CU | 14 | PPM | XRF | |
| V | 46 | PPM | XRF | |
| CR | 6 | PPM | XRF | |
| GA | 18 | PPM | XRF | |
| NI | 5.5 | PPM | XRF | |
| TH | 13.4 | PPM | INAA | |
| U | 5.2 | PPM | INAA | |
| LA | 42.8 | PPM | INAA | |
| CE | 80.4 | PPM | INAA | |
| ND | 31.2 | PPM | INAA | |
| SM | 5.33 | PPM | INAA | |
| EU | 1.1 | PPM | INAA | |
| TB | 0.57 | PPM | INAA | |
| YB | 2.19 | PPM | INAA | |
| LU | 0.35 | PPM | INAA | |
| TA | 1.09 | PPM | INAA | |
| HF | 4.9 | PPM | INAA | |
| CO | 5.8 | PPM | INAA |