| Field | Value |
|---|---|
| Unique Sample ID Number | M151142 |
| Analytical Job Number | KW02 |
| Submitter Name | Nokleberg, Warren J. |
| Date Submitted | 19811113 |
| Field Number | 81NK239A |
| State | AK |
| Latitude | 63.25889 |
| Longitude | -144.0333 |
| Source of Sample | outcrop |
| Collection Method | single/grab |
| Primary Classification | rock |
| Secondary Classification | metamorphic |
| Specific Name | metarhyolite |
| Additional Attributes and Comments | not metasomatic; quartz present; feldspathic (granite gneiss, syenite gneiss, biotite gneiss);; metarhyolite; |
| Type of Metamorphism | regional |
| Metamorphic Facies or Grade | greenschist |
| (click for info) | |
| Geologic map unit | -144.0333, 63.25889 |
| Nearby scientific data | Find additional scientific data near this location |
| Element | Measured value | Units of measure | Analytical method |
|---|---|---|---|
| Na2O | 4.04 | percent by weight | XRF |
| MgO | 1.06 | percent by weight | XRF |
| Al2O3 | 11.1 | percent by weight | XRF |
| SiO2 | 78.2 | percent by weight | XRF |
| P2O5 | L0.05 | percent by weight | XRF |
| K2O | 1.33 | percent by weight | XRF |
| CaO | 0.52 | percent by weight | XRF |
| TiO2 | 0.32 | percent by weight | XRF |
| MnO | L0.02 | percent by weight | XRF |
| FeO | 0.05 | percent by weight | Titration |
| FeTO3 | 1.54 | percent Fe2O3 by weight | XRF |
| Rubidium | 22 | ppm by weight | XRF |
| Strontium | 17 | ppm by weight | XRF |