Sample 85L-29A
NavDat sample number 45785 · PYROCLASTIC FLOW
Sample
| Sample ID | 85L-29A |
|---|---|
| Rock name | PYROCLASTIC FLOW |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
Location
| Latitude | 37.919 |
|---|---|
| Longitude | -106.927 |
| Location | Nelson Mtn |
| State / province | COLORADO |
| Formation | Nelson Mountain Caldera cycle, Nelson Mountain Tuff |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 26.5 | 25.9 | 27.1 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 64.43 | WT% | XRF | |
| TIO2 | 0.616731 | WT% | XRF | |
| AL2O3 | 16.0755 | WT% | XRF | |
| FE2O3 | 5.4697 | WT% | XRF | |
| MGO | 1.08181 | WT% | XRF | |
| CAO | 3.28586 | WT% | XRF | |
| NA2O | 3.8116 | WT% | XRF | |
| K2O | 3.88237 | WT% | XRF | |
| P2O5 | 0.242648 | WT% | XRF | |
| MNO | 0.0505518 | WT% | XRF | |
| LOI | 1.08 | WT% | XRF | |
| TOTAL | 98.9467 | WT% | XRF | |
| ZN | 51 | PPM | XRF | |
| RB | 105 | PPM | XRF | |
| SR | 566 | PPM | XRF | |
| Y | 19 | PPM | XRF | |
| ZR | 221 | PPM | XRF | |
| NB | 17 | PPM | XRF | |
| PB | 27 | PPM | XRF | |
| RB | 134 | PPM | INAA | |
| BA | 1330 | PPM | INAA | |
| SR | 320 | PPM | INAA | |
| TH | 10.9 | PPM | INAA | |
| U | 3.53 | PPM | INAA | |
| LA | 44.8 | PPM | INAA | |
| CE | 89.3 | PPM | INAA | |
| ND | 37.1 | PPM | INAA | |
| SM | 6.41 | PPM | INAA | |
| EU | 1.42 | PPM | INAA | |
| GD | 4.63 | PPM | INAA | |
| TB | 0.789 | PPM | INAA | |
| TM | 0.426 | PPM | INAA | |
| YB | 2.73 | PPM | INAA | |
| LU | 0.403 | PPM | INAA | |
| TA | 1.28 | PPM | INAA | |
| ZR | 263 | PPM | INAA | |
| HF | 7.47 | PPM | INAA | |
| SB | 0.235 | PPM | INAA | |
| SC | 4.64 | PPM | INAA | |
| CR | 1.05 | PPM | INAA | |
| CO | 2.21 | PPM | INAA | |
| NI | 9.74 | PPM | INAA | |
| ZN | 64.1 | PPM | INAA |