← Search
Sample 898
NavDat sample number 37292 · RHYOLITE
Sample
| Sample ID | 898 |
|---|
| Alternate ID | AYB-203 |
|---|
| Rock name | RHYOLITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
| Comment | Vitrophyre |
|---|
Location
| Latitude | 43.7752 |
|---|
| Longitude | -117.743 |
|---|
| State / province | Oregon |
|---|
| Volcanic field | Lake Owyhee |
|---|
| Formation | Littlefield Rhyolite |
|---|
| Elevation | 805 |
|---|
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 | 71.39 | | WT% | XRF |
| AL2O3 | 12.44 | | WT% | XRF |
| TIO2 | 0.7 | | WT% | XRF |
| FEOT | 3.92 | | WT% | XRF |
| MNO | 0.1 | | WT% | XRF |
| CAO | 2.68 | | WT% | XRF |
| MGO | 0.51 | | WT% | XRF |
| K2O | 5.42 | | WT% | XRF |
| NA2O | 2.68 | | WT% | XRF |
| P2O5 | 0.16 | | WT% | XRF |
| LOI | 3.77 | | WT% | XRF |
| TOTAL | 99.6 | | WT% | XRF |
| CR | 24 | | PPM | AAS |
| BA | 1430 | | PPM | AAS |
| RB | 156 | | PPM | ICP |
| SR | 189 | | PPM | ICP |
| ZR | 281 | | PPM | ICP |
| Y | 61 | | PPM | ICP |
| NB | 10 | | PPM | ICP |
