Sample 674
NavDat sample number 66161 · RHYOLITE
Sample
| Sample ID | 674 |
|---|---|
| Alternate ID | 97-LG-30 |
| Rock name | RHYOLITE |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Comment | Rhyolite |
Location
| Latitude | 45.0298 |
|---|---|
| Longitude | -118.545 |
| State / province | Oregon |
| Formation | Tower Mountain Volcanic Field |
| Elevation | 1878 |
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 | 77.15 | WT% | XRF | |
| AL2O3 | 13.49 | WT% | XRF | |
| TIO2 | 0.1 | WT% | XRF | |
| FEOT | 0.84 | WT% | XRF | |
| MNO | 0.006 | WT% | XRF | |
| CAO | 0.18 | WT% | XRF | |
| MGO | 0.25 | WT% | XRF | |
| K2O | 4.19 | WT% | XRF | |
| NA2O | 3.6 | WT% | XRF | |
| P2O5 | 0.19 | WT% | XRF | |
| TOTAL | 99.55 | WT% | XRF | |
| NI | 12 | PPM | XRF | |
| CR | 4 | PPM | XRF | |
| SC | 1 | PPM | XRF | |
| V | 6 | PPM | XRF | |
| BA | 978 | PPM | XRF | |
| RB | 92 | PPM | XRF | |
| SR | 96 | PPM | XRF | |
| ZR | 111 | PPM | XRF | |
| Y | 14 | PPM | XRF | |
| NB | 14.8 | PPM | XRF | |
| GA | 15 | PPM | XRF | |
| CU | 2 | PPM | XRF | |
| ZN | 31 | PPM | XRF | |
| PB | 5 | PPM | XRF | |
| LA | 22 | PPM | XRF | |
| CE | 43 | PPM | XRF | |
| TH | 7 | PPM | XRF |