Sample 576
NavDat sample number 66128 · RHYOLITE
Sample
| Sample ID | 576 |
|---|---|
| Alternate ID | 97-LG-69 |
| Rock name | RHYOLITE |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Comment | Rhyolite |
Location
| Latitude | 45.124 |
|---|---|
| Longitude | -118.539 |
| 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 | 76.04 | WT% | XRF | |
| AL2O3 | 14 | WT% | XRF | |
| TIO2 | 0.159 | WT% | XRF | |
| FEOT | 0.72 | WT% | XRF | |
| MNO | 0.002 | WT% | XRF | |
| CAO | 0.57 | WT% | XRF | |
| MGO | 0.27 | WT% | XRF | |
| K2O | 4.47 | WT% | XRF | |
| NA2O | 3.75 | WT% | XRF | |
| P2O5 | 0.021 | WT% | XRF | |
| TOTAL | 99.5 | WT% | XRF | |
| NI | 9 | PPM | XRF | |
| SC | 2 | PPM | XRF | |
| V | 1 | PPM | XRF | |
| BA | 776 | PPM | XRF | |
| RB | 93 | PPM | XRF | |
| SR | 59 | PPM | XRF | |
| ZR | 150 | PPM | XRF | |
| Y | 13 | PPM | XRF | |
| NB | 18.9 | PPM | XRF | |
| GA | 18 | PPM | XRF | |
| CU | 2 | PPM | XRF | |
| ZN | 13 | PPM | XRF | |
| PB | 12 | PPM | XRF | |
| LA | 40 | PPM | XRF | |
| CE | 39 | PPM | XRF | |
| TH | 8 | PPM | XRF |