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Sample LR89-008
NavDat sample number 45875 · PYROCLASTIC-FALL
Sample
| Sample ID | LR89-008 |
|---|
| Rock name | PYROCLASTIC-FALL |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
Location
| Latitude | 37.921 |
|---|
| Longitude | -106.916 |
|---|
| Location | Nelson Mtn SE Ridge, 11280' |
|---|
| State / province | COLORADO |
|---|
| Formation | Rat Creek Caldera Cycle, Rat Creek Tuff, lower nonwelded tuff |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 26.6 |
|
26.1 |
27 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 70.71 | | WT% | XRF |
| TIO2 | 0.341443 | | WT% | XRF |
| AL2O3 | 15.458 | | WT% | XRF |
| FE2O3 | 2.58669 | | WT% | XRF |
| MGO | 0.838087 | | WT% | XRF |
| CAO | 1.77964 | | WT% | XRF |
| NA2O | 2.97986 | | WT% | XRF |
| K2O | 5.401 | | WT% | XRF |
| P2O5 | 0.0724272 | | WT% | XRF |
| MNO | 0.0931207 | | WT% | XRF |
| LOI | 3.36 | | WT% | XRF |
| TOTAL | 100.26 | | WT% | XRF |
| ZN | 74 | | PPM | XRF |
| RB | 145 | | PPM | XRF |
| SR | 300 | | PPM | XRF |
| Y | 30 | | PPM | XRF |
| ZR | 217 | | PPM | XRF |
| NB | 19 | | PPM | XRF |
| PB | 43 | | PPM | XRF |
| TH | 27 | | PPM | XRF |
| BA | 1630 | | PPM | XRF |
| LA | 63 | | PPM | XRF |
| CE | 113 | | PPM | XRF |
| ND | 39 | | PPM | XRF |
