Sample BFC83
NavDat sample number 42916 · PYROCLASTIC-FALL
Sample
| Sample ID | BFC83 |
|---|---|
| Rock name | PYROCLASTIC-FALL |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
Location
| Latitude | 37.488 |
|---|---|
| Longitude | -106.87 |
| Location | Lake 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 | 68.26 | WT% | XRF | |
| TIO2 | 0.437 | WT% | XRF | |
| AL2O3 | 15.38 | WT% | XRF | |
| FE2O3 | 3.55 | WT% | XRF | |
| MGO | 0.92 | WT% | XRF | |
| CAO | 2.91 | WT% | XRF | |
| NA2O | 3.92 | WT% | XRF | |
| K2O | 4.349 | WT% | XRF | |
| P2O5 | 0.089 | WT% | XRF | |
| MNO | 0.176 | WT% | XRF | |
| LOI | 1.74 | WT% | XRF | |
| TOTAL | 99.991 | WT% | XRF | |
| ZN | 92 | PPM | XRF | |
| RB | 118.6 | PPM | XRF | |
| SR | 439 | PPM | XRF | |
| Y | 21.9 | PPM | XRF | |
| ZR | 187 | PPM | XRF | |
| NB | 16.9 | PPM | XRF | |
| PB | 17 | PPM | XRF | |
| TH | 13.5 | PPM | XRF | |
| BA | 835 | PPM | XRF | |
| LA | 43 | PPM | XRF | |
| CE | 74 | PPM | XRF | |
| ND | 26 | PPM | XRF | |
| CU | 8 | PPM | XRF | |
| V | 49 | PPM | XRF | |
| CR | 8 | PPM | XRF | |
| GA | 16.8 | PPM | XRF | |
| NI | 5 | PPM | XRF | |
| TH | 13.6 | PPM | INAA | |
| U | 6 | PPM | INAA | |
| LA | 43.3 | PPM | INAA | |
| CE | 84.8 | PPM | INAA | |
| ND | 33.4 | PPM | INAA | |
| SM | 5.75 | PPM | INAA | |
| EU | 1.22 | PPM | INAA | |
| TB | 0.64 | PPM | INAA | |
| YB | 2.39 | PPM | INAA | |
| LU | 0.36 | PPM | INAA | |
| TA | 1.2 | PPM | INAA | |
| HF | 5.4 | PPM | INAA | |
| SC | 6.6 | PPM | INAA | |
| CO | 6.1 | PPM | INAA | |
| ZN | 92 | PPM | INAA |