Sample 687
NavDat sample number 33812 · DACITE
Sample
| Sample ID | 687 |
|---|---|
| Alternate ID | 93-BG-43 |
| Rock name | DACITE |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
Location
| Latitude | 45.0111 |
|---|---|
| Longitude | -118.357 |
| State / province | Oregon |
| Volcanic field | Tower Mountain Volcanic Field |
| Elevation | 1798 |
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 | 63.53 | WT% | XRF | |
| AL2O3 | 16.39 | WT% | XRF | |
| TIO2 | 0.71 | WT% | XRF | |
| FEOT | 4.49 | WT% | XRF | |
| MNO | 0.07 | WT% | XRF | |
| CAO | 5.59 | WT% | XRF | |
| MGO | 3.44 | WT% | XRF | |
| K2O | 2.44 | WT% | XRF | |
| NA2O | 3.17 | WT% | XRF | |
| P2O5 | 0.17 | WT% | XRF | |
| TOTAL | 99.61 | WT% | XRF | |
| NI | 63 | PPM | XRF | |
| CR | 116 | PPM | XRF | |
| SC | 18 | PPM | XRF | |
| V | 107 | PPM | XRF | |
| BA | 624 | PPM | XRF | |
| RB | 45 | PPM | XRF | |
| SR | 450 | PPM | XRF | |
| ZR | 132 | PPM | XRF | |
| Y | 20 | PPM | XRF | |
| NB | 11 | PPM | XRF | |
| GA | 15 | PPM | XRF | |
| CU | 37 | PPM | XRF | |
| ZN | 83 | PPM | XRF | |
| PB | 8 | PPM | XRF | |
| LA | 16 | PPM | XRF | |
| CE | 57 | PPM | XRF | |
| TH | 9 | PPM | XRF |