Sample BFC35
NavDat sample number 91827 · PYROCLASTIC-FALL
Sample
| Sample ID | BFC35 |
|---|---|
| Rock name | PYROCLASTIC-FALL |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
Location
| Latitude | 37.557 |
|---|---|
| Longitude | -106.793 |
| Location | east of Shaw Lake |
| 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 | 67.95 | WT% | XRF | |
| TIO2 | 0.44 | WT% | XRF | |
| AL2O3 | 15.4 | WT% | XRF | |
| FE2O3 | 3.58 | WT% | XRF | |
| MGO | 1.03 | WT% | XRF | |
| CAO | 2.95 | WT% | XRF | |
| NA2O | 3.85 | WT% | XRF | |
| K2O | 4.23 | WT% | XRF | |
| P2O5 | 0.18 | WT% | XRF | |
| MNO | 0.08 | WT% | XRF | |
| LOI | 1.55 | WT% | XRF | |
| TOTAL | 99.69 | WT% | XRF | |
| ZN | 53 | PPM | XRF | |
| RB | 123 | PPM | XRF | |
| SR | 448 | PPM | XRF | |
| Y | 21 | PPM | XRF | |
| ZR | 175 | PPM | XRF | |
| NB | 17 | PPM | XRF | |
| PB | 18 | PPM | XRF | |
| TH | 13 | PPM | XRF | |
| BA | 843 | PPM | XRF | |
| LA | 42 | PPM | XRF | |
| CE | 77 | PPM | XRF | |
| ND | 30 | PPM | XRF | |
| CU | 5 | PPM | XRF | |
| V | 47 | PPM | XRF | |
| CR | 6 | PPM | XRF | |
| GA | 18 | PPM | XRF | |
| NI | 5.6 | PPM | XRF | |
| TH | 13.1 | PPM | INAA | |
| U | 5.5 | PPM | INAA | |
| LA | 41.9 | PPM | INAA | |
| CE | 77.2 | PPM | INAA | |
| ND | 30.5 | PPM | INAA | |
| SM | 5.32 | PPM | INAA | |
| EU | 1.11 | PPM | INAA | |
| TB | 0.59 | PPM | INAA | |
| YB | 2.17 | PPM | INAA | |
| LU | 0.33 | PPM | INAA | |
| TA | 1.06 | PPM | INAA | |
| HF | 5.11 | PPM | INAA |