NGDB rock sample M178989

Field Value
Unique Sample ID Number M178989
Analytical Job Number LV56
Submitter Name Brew, David A.
Date Submitted 19870722
Field Number 87RN287C
State AK
Latitude 58.10083
Longitude -134.65583
Source of Sample drill core
Collection Method channel
Primary Classification rock
Secondary Classification metamorphic
Specific Name schist
Additional Attributes and Comments metasomatism unknown; quartz present; aluminosilicate, pelitic (schist, phyllite, mica gneiss);; musc-ruhle schist (alt'd metavolc?);
Geologic Age or Range Devonian--Triassic
Stratigraphic Unit Name TAN TUFFITE
Alteration altrtn present
Type of Metamorphism regional
Metamorphic Facies or Grade greenschist
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Geologic map unit -134.65583, 58.10083
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Element Measured value Units of measure Analytical method
Na2O 1.63 percent by weight XRF
MgO 4.05 percent by weight XRF
Al2O3 13 percent by weight XRF
SiO2 47.9 percent by weight XRF
P2O5 0.42 percent by weight XRF
K2O 3.12 percent by weight XRF
CaO 2.99 percent by weight XRF
TiO2 0.81 percent by weight XRF
Chromium 46 ppm by weight XRF
MnO 0.45 percent by weight XRF
FeO 5.14 percent by weight Titration
FeTO3 11.4 percent Fe2O3 by weight XRF
Nickel L20 ppm by weight XRF
Rubidium 54 ppm by weight XRF
Strontium 265 ppm by weight XRF
Yttrium 28 ppm by weight XRF
Zirconium 86 ppm by weight XRF
Niobium 18 ppm by weight XRF