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Sample 855
NavDat sample number 66616 · DACITE
Sample
| Sample ID | 855 |
|---|
| Alternate ID | AYB-421 |
|---|
| Rock name | DACITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
| Comment | Tuff |
|---|
Location
| Latitude | 43.932 |
|---|
| Longitude | -117.746 |
|---|
| State / province | Oregon |
|---|
| Volcanic field | Columbia River Basalt |
|---|
| Formation | Hunter Creek Basalt |
|---|
| Elevation | 1073 |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 13.8 |
|
11.2 |
16.4 |
middle Miocene |
|
Analyses
Whole Rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 63.8 | | WT% | XRF |
| AL2O3 | 14.63 | | WT% | XRF |
| TIO2 | 1.29 | | WT% | XRF |
| FEOT | 10.22 | | WT% | XRF |
| MNO | 0.12 | | WT% | XRF |
| CAO | 4.07 | | WT% | XRF |
| MGO | 2.18 | | WT% | XRF |
| K2O | 1.92 | | WT% | XRF |
| NA2O | 1.51 | | WT% | XRF |
| P2O5 | 0.25 | | WT% | XRF |
| TOTAL | 100 | | WT% | XRF |
| LOI | 13.2 | | WT% | XRF |
| CR | 21 | | PPM | ICP |
| BA | 834 | | PPM | ICP |
| RB | 67 | | PPM | ICP |
| SR | 226 | | PPM | ICP |
| ZR | 212 | | PPM | ICP |
| Y | 65 | | PPM | ICP |
| NB | 24 | | PPM | ICP |
