Sample S25
NavDat sample number 47834 · TRACHYANDESITE
Sample
| Sample ID | S25 |
|---|---|
| Rock name | TRACHYANDESITE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
| Collected by | John Bush |
| Comment | flow |
Location
| Latitude | 46.868 |
|---|---|
| Longitude | -116.732 |
| 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 | 51.31 | WT% | XRF | |
| TIO2 | 3.08 | WT% | XRF | |
| AL2O3 | 15.34 | WT% | XRF | |
| FEO | 11.73 | WT% | XRF | |
| MNO | 0.2 | WT% | XRF | |
| MGO | 3.26 | WT% | XRF | |
| CAO | 6.88 | WT% | XRF | |
| NA2O | 4.23 | WT% | XRF | |
| K2O | 2.01 | WT% | XRF | |
| P2O5 | 0.88 | WT% | XRF | |
| NI | 0 | PPM | XRF | |
| CR | 9 | PPM | XRF | |
| SC | 25 | PPM | XRF | |
| V | 178 | PPM | XRF | |
| BA | 520 | PPM | XRF | |
| RB | 28 | PPM | XRF | |
| SR | 459 | PPM | XRF | |
| ZR | 377 | PPM | XRF | |
| Y | 44 | PPM | XRF | |
| NB | 64.9 | PPM | XRF | |
| GA | 22 | PPM | XRF | |
| CU | 9 | PPM | XRF | |
| ZN | 149 | PPM | XRF | |
| PB | 2 | PPM | XRF | |
| LA | 33 | PPM | XRF | |
| CE | 105 | PPM | XRF | |
| TH | 4 | PPM | XRF |