Sample 629
NavDat sample number 66149 · RHYOLITE
Sample
| Sample ID | 629 |
|---|---|
| Alternate ID | 97-LG-88 |
| Rock name | RHYOLITE |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Comment | Rhyolite |
Location
| Latitude | 45.0805 |
|---|---|
| Longitude | -118.666 |
| State / province | Oregon |
| Formation | Tower Mountain Volcanic Field |
| Elevation | 1707 |
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 | 75.4 | WT% | XRF | |
| AL2O3 | 13.76 | WT% | XRF | |
| TIO2 | 0.11 | WT% | XRF | |
| FEOT | 1.27 | WT% | XRF | |
| MNO | 0.007 | WT% | XRF | |
| CAO | 2.15 | WT% | XRF | |
| MGO | 0.42 | WT% | XRF | |
| K2O | 4.62 | WT% | XRF | |
| NA2O | 2.24 | WT% | XRF | |
| P2O5 | 0.026 | WT% | XRF | |
| TOTAL | 95.73 | WT% | XRF | |
| NI | 1 | PPM | XRF | |
| SC | 4 | PPM | XRF | |
| V | 8 | PPM | XRF | |
| BA | 512 | PPM | XRF | |
| RB | 96 | PPM | XRF | |
| SR | 198 | PPM | XRF | |
| ZR | 97 | PPM | XRF | |
| Y | 18 | PPM | XRF | |
| NB | 16.5 | PPM | XRF | |
| GA | 18 | PPM | XRF | |
| CU | 6 | PPM | XRF | |
| ZN | 29 | PPM | XRF | |
| PB | 12 | PPM | XRF | |
| LA | 22 | PPM | XRF | |
| CE | 46 | PPM | XRF | |
| TH | 9 | PPM | XRF |