Sample 478
NavDat sample number 48712 · DACITE
Sample
| Sample ID | 478 |
|---|---|
| Alternate ID | 98-MAD-225 |
| Rock name | DACITE |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Comment | Calc_alkaline |
Location
| Latitude | 45.1853 |
|---|---|
| Longitude | -117.99 |
| State / province | Oregon |
| Volcanic field | Powder River |
| Formation | Glass Hill Volcanic Group |
| Elevation | 1116 |
| Location comment | Powder River Volcanic Field |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 14.55 | 5.3 | 23.8 | Miocene |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 65.14 | WT% | XRF | |
| AL2O3 | 16.71 | WT% | XRF | |
| TIO2 | 0.76 | WT% | XRF | |
| FEOT | 4.17 | WT% | XRF | |
| MNO | 0.072 | WT% | XRF | |
| CAO | 5.03 | WT% | XRF | |
| MGO | 1.44 | WT% | XRF | |
| K2O | 1.83 | WT% | XRF | |
| NA2O | 4.52 | WT% | XRF | |
| P2O5 | 0.333 | WT% | XRF | |
| NI | 22 | PPM | XRF | |
| CR | 43 | PPM | XRF | |
| SC | 10 | PPM | XRF | |
| V | 85 | PPM | XRF | |
| BA | 669 | PPM | XRF | |
| RB | 31 | PPM | XRF | |
| SR | 640 | PPM | XRF | |
| ZR | 172 | PPM | XRF | |
| Y | 19 | PPM | XRF | |
| NB | 15.3 | PPM | XRF | |
| GA | 19 | PPM | XRF | |
| CU | 19 | PPM | XRF | |
| ZN | 65 | PPM | XRF | |
| PB | 6 | PPM | XRF | |
| LA | 27 | PPM | XRF | |
| CE | 54 | PPM | XRF | |
| TH | 4 | PPM | XRF |