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Sample LR88-609
NavDat sample number 45783 · PYROCLASTIC FLOW
Sample
| Sample ID | LR88-609 |
|---|
| Rock name | PYROCLASTIC FLOW |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
Location
| Latitude | 37.917 |
|---|
| Longitude | -106.921 |
|---|
| Location | Nelson Mtn., base of upper cliff |
|---|
| 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 | 65.46 | | WT% | XRF |
| TIO2 | 0.584096 | | WT% | XRF |
| AL2O3 | 15.8109 | | WT% | XRF |
| FE2O3 | 5.14609 | | WT% | XRF |
| MGO | 1.15812 | | WT% | XRF |
| CAO | 3.54486 | | WT% | XRF |
| NA2O | 3.78656 | | WT% | XRF |
| K2O | 3.99804 | | WT% | XRF |
| P2O5 | 0.251766 | | WT% | XRF |
| MNO | 0.0704944 | | WT% | XRF |
| LOI | 0.7 | | WT% | XRF |
| TOTAL | 99.8109 | | WT% | XRF |
| ZN | 67 | | PPM | XRF |
| RB | 116 | | PPM | XRF |
| SR | 551 | | PPM | XRF |
| Y | 24 | | PPM | XRF |
| ZR | 204 | | PPM | XRF |
| NB | 15 | | PPM | XRF |
| PB | 30 | | PPM | XRF |
| TH | 9 | | PPM | XRF |
| BA | 987 | | PPM | XRF |
| LA | 45 | | PPM | XRF |
| CE | 86 | | PPM | XRF |
| ND | 32 | | PPM | XRF |
