Sample 87-161
NavDat sample number 16975 · PYROCLASTIC-FLOW
Sample
| Sample ID | 87-161 |
|---|---|
| Rock name | PYROCLASTIC-FLOW |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
Location
| Latitude | 37.733 |
|---|---|
| Longitude | -107.065 |
| Location | Antelope Park, 1.78 mi N of BM 8923' |
| State / province | COLORADO |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 27.2 | 27.1 | 27.3 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 65.3882 | WT% | XRF | |
| TIO2 | 0.750656 | WT% | XRF | |
| AL2O3 | 17.326 | WT% | XRF | |
| FE2O3 | 2.77946 | WT% | XRF | |
| MGO | 1.97808 | WT% | XRF | |
| CAO | 4.67638 | WT% | XRF | |
| NA2O | 3.77357 | WT% | XRF | |
| K2O | 4.37206 | WT% | XRF | |
| P2O5 | 0.294176 | WT% | XRF | |
| MNO | 0.10144 | WT% | XRF | |
| LOI | 1.62 | WT% | XRF | |
| TOTAL | 101.44 | WT% | XRF | |
| ZN | 41 | PPM | XRF | |
| RB | 130 | PPM | XRF | |
| SR | 494 | PPM | XRF | |
| Y | 29 | PPM | XRF | |
| ZR | 252 | PPM | XRF | |
| BA | 1273 | PPM | XRF | |
| LA | 46 | PPM | XRF | |
| CE | 67 | PPM | XRF | |
| CU | 14 | PPM | XRF | |
| V | 40 | PPM | XRF | |
| TH | 15.7 | PPM | INAA | |
| U | 3.9 | PPM | INAA | |
| LA | 51.6 | PPM | INAA | |
| CE | 93.3 | PPM | INAA | |
| ND | 33.5 | PPM | INAA | |
| SM | 7.37 | PPM | INAA | |
| EU | 1.43 | PPM | INAA | |
| GD | 3.3 | PPM | INAA | |
| TB | 1.08 | PPM | INAA | |
| YB | 3.18 | PPM | INAA | |
| LU | 0.42 | PPM | INAA | |
| TA | 1.27 | PPM | INAA | |
| HF | 4.97 | PPM | INAA | |
| SC | 7.9 | PPM | INAA |