Sample 00L-29-A
NavDat sample number 45806 · RHYOLITE
Sample
| Sample ID | 00L-29-A |
|---|---|
| Rock name | RHYOLITE |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
Location
| Latitude | 38.302 |
|---|---|
| Longitude | -106.738 |
| Location | quarry, west side of dome |
| 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 | 77.35 | WT% | XRF | |
| TIO2 | 0.131787 | WT% | XRF | |
| AL2O3 | 12.0636 | WT% | XRF | |
| FE2O3 | 1.11512 | WT% | XRF | |
| MGO | 0.182474 | WT% | XRF | |
| CAO | 0.446048 | WT% | XRF | |
| NA2O | 3.55824 | WT% | XRF | |
| K2O | 4.59226 | WT% | XRF | |
| P2O5 | 0.0608247 | WT% | XRF | |
| MNO | 0.0709621 | WT% | XRF | |
| LOI | 1.35 | WT% | XRF | |
| TOTAL | 99.57 | WT% | XRF | |
| ZN | 30 | PPM | XRF | |
| RB | 281 | PPM | XRF | |
| SR | 41 | PPM | XRF | |
| Y | 33 | PPM | XRF | |
| ZR | 111 | PPM | XRF | |
| NB | 45 | PPM | XRF | |
| PB | 22 | PPM | XRF | |
| TH | 24 | PPM | XRF | |
| BA | 129 | PPM | XRF | |
| LA | 32 | PPM | XRF | |
| CE | 67 | PPM | XRF | |
| ND | 43 | PPM | XRF | |
| CU | 2 | PPM | XRF | |
| V | -5 | PPM | XRF | |
| U | 7 | PPM | XRF | |
| CR | 4 | PPM | XRF | |
| CS | 6 | PPM | XRF | |
| GA | 20 | PPM | XRF | |
| MO | 2 | PPM | XRF | |
| NI | 4 | PPM | XRF |