Field | Value |
---|---|
Unique Sample ID Number | W223187 |
Analytical Job Number | BK71 |
Submitter Name | Brew, David A. |
Date Submitted | 19830913 |
Field Number | 83EW020A |
State | AK |
Latitude | 58.29944 |
Longitude | -134.33611 |
Source of Sample | mine/quarry |
Collection Method | single/grab |
Primary Classification | rock |
Secondary Classification | metamorphic |
Specific Name | metagraywacke |
Additional Attributes and Comments | not metasomatic; quartz present; feldspathic (granite gneiss, syenite gneiss, biotite gneiss);; pyrite-graphite-quartz greywacke; |
Geologic Age or Range | Permian--Cretaceous |
Type of Metamorphism | contact |
Metamorphic Facies or Grade | greenschist |
(click for info) | |
Geologic map unit | -134.33611, 58.29944 |
Nearby scientific data | Find additional scientific data near this location |
Element | Measured value | Units of measure | Analytical method |
---|---|---|---|
Na2O | 3.36 | percent by weight | XRF |
MgO | 8.13 | percent by weight | XRF |
Al2O3 | 16 | percent by weight | XRF |
SiO2 | 44.4 | percent by weight | XRF |
P2O5 | 0.43 | percent by weight | XRF |
K2O | 0.56 | percent by weight | XRF |
CaO | 6.39 | percent by weight | XRF |
TiO2 | 1.78 | percent by weight | XRF |
MnO | 0.17 | percent by weight | XRF |
FeO | 8 | percent by weight | Titration |
FeTO3 | 9.62 | percent Fe2O3 by weight | XRF |