Sample 579
NavDat sample number 66129 · RHYOLITE
Sample
| Sample ID | 579 |
|---|---|
| Alternate ID | 97-LG-12 |
| Rock name | RHYOLITE |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Comment | Welded tuff |
Location
| Latitude | 45.1207 |
|---|---|
| Longitude | -118.567 |
| State / province | Oregon |
| Formation | Tower Mountain Volcanic Field |
| Elevation | 1487 |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 28.75 | 23.8 | 33.7 | Oligocene |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 77.06 | WT% | XRF | |
| AL2O3 | 13.02 | WT% | XRF | |
| TIO2 | 0.156 | WT% | XRF | |
| FEOT | 0.93 | WT% | XRF | |
| MNO | 0.002 | WT% | XRF | |
| CAO | 1.77 | WT% | XRF | |
| MGO | 0.33 | WT% | XRF | |
| K2O | 4.71 | WT% | XRF | |
| NA2O | 1.99 | WT% | XRF | |
| P2O5 | 0.026 | WT% | XRF | |
| TOTAL | 96.37 | WT% | XRF | |
| NI | 15 | PPM | XRF | |
| CR | 7 | PPM | XRF | |
| SC | 2 | PPM | XRF | |
| V | 11 | PPM | XRF | |
| BA | 985 | PPM | XRF | |
| RB | 94 | PPM | XRF | |
| SR | 323 | PPM | XRF | |
| ZR | 118 | PPM | XRF | |
| Y | 17 | PPM | XRF | |
| NB | 15.4 | PPM | XRF | |
| GA | 19 | PPM | XRF | |
| CU | 4 | PPM | XRF | |
| ZN | 23 | PPM | XRF | |
| PB | 11 | PPM | XRF | |
| LA | 38 | PPM | XRF | |
| CE | 65 | PPM | XRF | |
| TH | 7 | PPM | XRF |