Sample 621
NavDat sample number 66145 · RHYOLITE
Sample
| Sample ID | 621 |
|---|---|
| Alternate ID | 97-LG-90 |
| Rock name | RHYOLITE |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Comment | Rhyolite |
Location
| Latitude | 45.0855 |
|---|---|
| Longitude | -118.674 |
| State / province | Oregon |
| Formation | Tower Mountain Volcanic Field |
| Elevation | 1609 |
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 | 12.42 | WT% | XRF | |
| TIO2 | 0.092 | WT% | XRF | |
| FEOT | 1.19 | WT% | XRF | |
| MNO | 0.006 | WT% | XRF | |
| CAO | 0.19 | WT% | XRF | |
| MGO | 0.29 | WT% | XRF | |
| K2O | 4.63 | WT% | XRF | |
| NA2O | 4.11 | WT% | XRF | |
| P2O5 | 0.018 | WT% | XRF | |
| TOTAL | 100.48 | WT% | XRF | |
| NI | 12 | PPM | XRF | |
| SC | 2 | PPM | XRF | |
| V | 6 | PPM | XRF | |
| BA | 45 | PPM | XRF | |
| RB | 108 | PPM | XRF | |
| SR | 14 | PPM | XRF | |
| ZR | 214 | PPM | XRF | |
| Y | 16 | PPM | XRF | |
| NB | 38.6 | PPM | XRF | |
| GA | 23 | PPM | XRF | |
| CU | 5 | PPM | XRF | |
| ZN | 76 | PPM | XRF | |
| PB | 8 | PPM | XRF | |
| LA | 33 | PPM | XRF | |
| CE | 65 | PPM | XRF | |
| TH | 9 | PPM | XRF |