NGDB rock sample M178964

Field Value
Unique Sample ID Number M178964
Analytical Job Number LV54
Submitter Name Brew, David A.
Date Submitted 19870722
Field Number 87RN284E
State AK
Latitude 58.08194
Longitude -134.63333
Source of Sample mine/quarry
Collection Method composite
Primary Classification rock
Secondary Classification metamorphic
Specific Name schist
Additional Attributes and Comments metasomatism unknown; quartz present; mafic (greenstone, greenschist, amphibolite);; chl-dolo-qtz schist-cal;
Geologic Age or Range Devonian--Triassic
Stratigraphic Unit Name CHL MUDSTONE
Mineralization Type mineralization present
Type of Metamorphism regional
Metamorphic Facies or Grade greenschist
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Geologic map unit -134.63333, 58.08194
Nearby scientific data Find additional scientific data near this location
Element Measured value Units of measure Analytical method
Na2O 1.99 percent by weight XRF
MgO 6.21 percent by weight XRF
Al2O3 15.6 percent by weight XRF
SiO2 40.6 percent by weight XRF
P2O5 0.16 percent by weight XRF
K2O 2.74 percent by weight XRF
CaO 6.8 percent by weight XRF
TiO2 1.63 percent by weight XRF
Chromium 142 ppm by weight XRF
MnO 0.13 percent by weight XRF
FeO 9.52 percent by weight Titration
FeTO3 12.5 percent Fe2O3 by weight XRF
Nickel 90 ppm by weight XRF
Rubidium 54 ppm by weight XRF
Strontium 90 ppm by weight XRF
Yttrium 32 ppm by weight XRF
Zirconium 104 ppm by weight XRF
Niobium 12 ppm by weight XRF