| Field | Value |
|---|---|
| Unique Sample ID Number | M193435 |
| Analytical Job Number | MF98 |
| Submitter Name | Brew, David A. |
| Date Submitted | 19900824 |
| Field Number | 90RN164A |
| State | AK |
| Latitude | 56.50944 |
| Longitude | -132.05306 |
| Source of Sample | drill core |
| Collection Method | composite |
| Primary Classification | rock |
| Secondary Classification | igneous |
| Specific Name | rhyolite porphyry |
| Additional Attributes and Comments | porphyritic rhyolite; |
| Geologic Age or Range | Miocene |
| Stratigraphic Unit Name | GRNDHOG BASIN RHYOLITE |
| Igneous Structural Setting | dike/sill |
| (click for info) | |
| Geologic map unit | -132.05306, 56.50944 |
| Nearby scientific data | Find additional scientific data near this location |
| Element | Measured value | Units of measure | Analytical method |
|---|---|---|---|
| LOI | 0.36 | percent by weight | (unknown method) |
| Fluorine | 0.74 | percent by weight | ISE |
| Na2O | 4.35 | percent by weight | XRF |
| MgO | L0.1 | percent by weight | XRF |
| Al2O3 | 13.2 | percent by weight | XRF |
| SiO2 | 74.5 | percent by weight | XRF |
| P2O5 | L0.05 | percent by weight | XRF |
| Chlorine | 0.008 | percent by weight | ISE |
| K2O | 4.53 | percent by weight | XRF |
| CaO | 0.5 | percent by weight | XRF |
| TiO2 | 0.02 | percent by weight | XRF |
| MnO | L0.02 | percent by weight | XRF |
| FeO | 0.88 | percent by weight | Titration |
| FeTO3 | 1.14 | percent Fe2O3 by weight | XRF |
| Rubidium | 620 | ppm by weight | XRF |
| Strontium | 12 | ppm by weight | XRF |
| Yttrium | 188 | ppm by weight | XRF |
| Zirconium | 136 | ppm by weight | XRF |
| Niobium | 84 | ppm by weight | XRF |
| Molybdenum | L20 | ppm by weight | XRF |
| Tin | 33 | ppm by weight | XRF |
| Barium | L30 | ppm by weight | XRF |
| Lanthanum | L30 | ppm by weight | XRF |
| Cerium | 64 | ppm by weight | XRF |