Sample LR89-003
NavDat sample number 30186 · RHYOLITE
Sample
| Sample ID | LR89-003 |
|---|---|
| Rock name | RHYOLITE |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
Location
| Latitude | 37.7122 |
|---|---|
| Longitude | -106.69 |
| Location | Lower cliff, N of Masonic Park, 8490' |
| State / province | COLORADO |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 28.35 | 28.2 | 28.5 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 61.88 | WT% | XRF | |
| TIO2 | 0.8 | WT% | XRF | |
| AL2O3 | 15.82 | WT% | XRF | |
| FE2O3 | 6.53 | WT% | XRF | |
| MGO | 1.87 | WT% | XRF | |
| CAO | 4.48 | WT% | XRF | |
| NA2O | 3.49 | WT% | XRF | |
| K2O | 3.76 | WT% | XRF | |
| P2O5 | 0.3 | WT% | XRF | |
| MNO | 0.1 | WT% | XRF | |
| LOI | 0.79 | WT% | XRF | |
| TOTAL | 99.03 | WT% | XRF | |
| ZN | 98 | PPM | XRF | |
| RB | 88 | PPM | XRF | |
| SR | 595 | PPM | XRF | |
| Y | 29 | PPM | XRF | |
| ZR | 173 | PPM | XRF | |
| NB | 17 | PPM | XRF | |
| PB | 38 | PPM | XRF | |
| TH | 25 | PPM | XRF | |
| BA | 915 | PPM | XRF | |
| LA | 44 | PPM | XRF | |
| CE | 82 | PPM | XRF | |
| ND | 47 | PPM | XRF |