Sample BFC13
NavDat sample number 91821 · PYROCLASTIC-FALL
Sample
| Sample ID | BFC13 |
|---|---|
| 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 | 67.11 | WT% | XRF | |
| TIO2 | 0.45 | WT% | XRF | |
| AL2O3 | 15.55 | WT% | XRF | |
| FE2O3 | 4.2 | WT% | XRF | |
| MGO | 1.28 | WT% | XRF | |
| CAO | 3.27 | WT% | XRF | |
| NA2O | 3.94 | WT% | XRF | |
| K2O | 3.64 | WT% | XRF | |
| P2O5 | 0.19 | WT% | XRF | |
| MNO | 0.08 | WT% | XRF | |
| LOI | 1.98 | WT% | XRF | |
| TOTAL | 99.71 | WT% | XRF | |
| ZN | 56 | PPM | XRF | |
| RB | 139 | PPM | XRF | |
| SR | 497 | PPM | XRF | |
| Y | 22 | PPM | XRF | |
| ZR | 187 | PPM | XRF | |
| NB | 17 | PPM | XRF | |
| PB | 18 | PPM | XRF | |
| TH | 14 | PPM | XRF | |
| BA | 804 | PPM | XRF | |
| LA | 42 | PPM | XRF | |
| CE | 80 | PPM | XRF | |
| ND | 32 | PPM | XRF | |
| CU | 10 | PPM | XRF | |
| V | 45 | PPM | XRF | |
| CR | 6 | PPM | XRF | |
| GA | 18 | PPM | XRF | |
| NI | 5.5 | PPM | XRF | |
| TH | 13.6 | PPM | INAA | |
| U | 5.4 | PPM | INAA | |
| LA | 41.8 | PPM | INAA | |
| CE | 79.6 | PPM | INAA | |
| ND | 31.5 | PPM | INAA | |
| SM | 5.52 | PPM | INAA | |
| EU | 1.14 | PPM | INAA | |
| TB | 0.6 | PPM | INAA | |
| YB | 2.27 | PPM | INAA | |
| LU | 0.35 | PPM | INAA | |
| TA | 1.11 | PPM | INAA | |
| HF | 4.97 | PPM | INAA | |
| CO | 6.6 | PPM | INAA |