Sample PR-265
NavDat sample number 47822 · TRACHYANDESITE
Sample
| Sample ID | PR-265 |
|---|---|
| Rock name | TRACHYANDESITE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
| Collected by | John Bush |
| Comment | flow |
Location
| Latitude | 46.8986 |
|---|---|
| Longitude | -116.769 |
| State / province | Idaho |
| Volcanic field | Potlatch volcanics |
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 | 58.94 | WT% | XRF | |
| TIO2 | 1.16 | WT% | XRF | |
| AL2O3 | 18.03 | WT% | XRF | |
| FEO | 6.63 | WT% | XRF | |
| MNO | 0.07 | WT% | XRF | |
| MGO | 0.54 | WT% | XRF | |
| CAO | 3.55 | WT% | XRF | |
| NA2O | 5.53 | WT% | XRF | |
| K2O | 3.99 | WT% | XRF | |
| P2O5 | 0.6 | WT% | XRF | |
| NI | 4 | PPM | XRF | |
| CR | 0 | PPM | XRF | |
| SC | 20 | PPM | XRF | |
| V | 13 | PPM | XRF | |
| BA | 978 | PPM | XRF | |
| RB | 69 | PPM | XRF | |
| SR | 432 | PPM | XRF | |
| ZR | 650 | PPM | XRF | |
| Y | 50 | PPM | XRF | |
| NB | 90.7 | PPM | XRF | |
| GA | 30 | PPM | XRF | |
| CU | 6 | PPM | XRF | |
| ZN | 183 | PPM | XRF | |
| PB | 7 | PPM | XRF | |
| LA | 79 | PPM | XRF | |
| CE | 155 | PPM | XRF | |
| TH | 7 | PPM | XRF |