NGDB rock sample M178980

Field Value
Unique Sample ID Number M178980
Analytical Job Number LV55
Submitter Name Brew, David A.
Date Submitted 19870722
Field Number 87RN284B
State AK
Latitude 58.08194
Longitude -134.63333
Source of Sample mine/quarry
Collection Method composite
Primary Classification rock
Secondary Classification metamorphic
Specific Name phyllite
Additional Attributes and Comments metasomatism unknown; quartz present; calcareous or dolomitic (marble);; graph-qtz-cal phyllite;
Geologic Age or Range Devonian--Triassic
Stratigraphic Unit Name GRNS CREEK MINE "ARGILLITE"
Alteration altrtn present
Type of Metamorphism shear
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 0.59 percent by weight XRF
MgO 6.1 percent by weight XRF
Al2O3 5.35 percent by weight XRF
SiO2 51.3 percent by weight XRF
P2O5 0.06 percent by weight XRF
K2O 0.61 percent by weight XRF
CaO 14.2 percent by weight XRF
TiO2 0.26 percent by weight XRF
Chromium 124 ppm by weight XRF
MnO 0.08 percent by weight XRF
FeO 0.81 percent by weight Titration
FeTO3 2.04 percent Fe2O3 by weight XRF
Nickel L20 ppm by weight XRF
Rubidium 14 ppm by weight XRF
Strontium 126 ppm by weight XRF
Yttrium 26 ppm by weight XRF
Zirconium 74 ppm by weight XRF
Niobium 10 ppm by weight XRF