Sample 684
NavDat sample number 66164 · RHYOLITE
Sample
| Sample ID | 684 |
|---|---|
| Alternate ID | 97-LG-57 |
| Rock name | RHYOLITE |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Comment | Perlite |
Location
| Latitude | 45.0188 |
|---|---|
| Longitude | -118.58 |
| State / province | Oregon |
| Formation | Tower Mountain Volcanic Field |
| Elevation | 1622 |
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 | 76.95 | WT% | XRF | |
| AL2O3 | 12.63 | WT% | XRF | |
| TIO2 | 0.087 | WT% | XRF | |
| FEOT | 1 | WT% | XRF | |
| MNO | 0.023 | WT% | XRF | |
| CAO | 0.73 | WT% | XRF | |
| MGO | 0.06 | WT% | XRF | |
| K2O | 4.64 | WT% | XRF | |
| NA2O | 3.64 | WT% | XRF | |
| P2O5 | 0.239 | WT% | XRF | |
| TOTAL | 97.69 | WT% | XRF | |
| NI | 11 | PPM | XRF | |
| CR | 1 | PPM | XRF | |
| SC | 2 | PPM | XRF | |
| V | 5 | PPM | XRF | |
| BA | 959 | PPM | XRF | |
| RB | 100 | PPM | XRF | |
| SR | 81 | PPM | XRF | |
| ZR | 93 | PPM | XRF | |
| Y | 17 | PPM | XRF | |
| NB | 15.1 | PPM | XRF | |
| GA | 17 | PPM | XRF | |
| CU | 4 | PPM | XRF | |
| ZN | 28 | PPM | XRF | |
| PB | 13 | PPM | XRF | |
| LA | 32 | PPM | XRF | |
| CE | 52 | PPM | XRF | |
| TH | 7 | PPM | XRF |