Sample PR-E
NavDat sample number 33787 · RHYOLITE
Sample
| Sample ID | PR-E |
|---|---|
| Rock name | RHYOLITE |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Comment | slightly phyric; layers of nearly 100% white spherulites and lithophysal cavities alternate with brown flow-banded rhyolite |
Location
| Latitude | 43.8315 |
|---|---|
| Longitude | -116.324 |
| State / province | Idaho |
| Volcanic field | Willow Creek Rhyolite |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 11.3 | 11 | 11.6 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 79.34 | WT% | XRF | |
| AL2O3 | 11.43 | WT% | XRF | |
| FEOT | 0.64 | WT% | XRF | |
| MNO | 0.007 | WT% | XRF | |
| MGO | 0 | WT% | XRF | |
| CAO | 0.41 | WT% | XRF | |
| K2O | 4.53 | WT% | XRF | |
| NA2O | 3.3 | WT% | XRF | |
| TIO2 | 0.103 | WT% | XRF | |
| P2O5 | 0.019 | WT% | XRF | |
| LOI | 0.22 | WT% | XRF | |
| TOTAL | 99.78 | WT% | XRF | |
| NI | 7 | PPM | XRF | |
| CR | 0 | PPM | XRF | |
| SC | 2 | PPM | XRF | |
| V | 0 | PPM | XRF | |
| BA | 320 | PPM | XRF | |
| RB | 122 | PPM | XRF | |
| SR | 24 | PPM | XRF | |
| ZR | 180 | PPM | XRF | |
| Y | 28 | PPM | XRF | |
| NB | 40 | PPM | XRF | |
| GA | 17 | PPM | XRF | |
| CU | 6 | PPM | XRF | |
| ZN | 30 | PPM | XRF | |
| PB | 22 | PPM | XRF | |
| TH | 13 | PPM | XRF | |
| LA | 72 | PPM | XRF | |
| CE | 115 | PPM | XRF |