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Sample 838
NavDat sample number 66430 · RHYOLITE
Sample
| Sample ID | 838 |
|---|
| Alternate ID | AYB-402 |
|---|
| Rock name | RHYOLITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
| Comment | Rhyolite |
|---|
Location
| Latitude | 43.992 |
|---|
| Longitude | -117.555 |
|---|
| State / province | Oregon |
|---|
| Volcanic field | XRAL |
|---|
| Formation | Lake Owyhee Volcanic Field |
|---|
| Elevation | 835 |
|---|
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 | 71.93 | | WT% | XRF |
| AL2O3 | 12.76 | | WT% | XRF |
| TIO2 | 0.71 | | WT% | XRF |
| FEOT | 3.83 | | WT% | XRF |
| MNO | 0.1 | | WT% | XRF |
| CAO | 1.88 | | WT% | XRF |
| MGO | 0.58 | | WT% | XRF |
| K2O | 5.18 | | WT% | XRF |
| NA2O | 2.87 | | WT% | XRF |
| P2O5 | 0.17 | | WT% | XRF |
| TOTAL | 99.8 | | WT% | XRF |
| LOI | 3.31 | | WT% | XRF |
| BA | 1430 | | PPM | ICP |
| RB | 139 | | PPM | ICP |
| SR | 183 | | PPM | ICP |
| ZR | 297 | | PPM | ICP |
| Y | 42 | | PPM | ICP |
| NB | 25 | | PPM | ICP |
