NGDB rock sample M196588

Field Value
Unique Sample ID Number M196588
Analytical Job Number MJ38
Submitter Name Brew, David A.
Date Submitted 19910718
Field Number 91RN116G
State AK
Latitude 56.57556
Longitude -133.05528
Source of Sample drill core
Collection Method composite
Primary Classification rock
Secondary Classification metamorphic
Specific Name metatuff
Additional Attributes and Comments metasomatism unknown; quartz present; aluminosilicate, pelitic (schist, phyllite, mica gneiss);; alt'd tuff?;
Geologic Age or Range Devonian--Cretaceous
Stratigraphic Unit Name WOCWODSKI ISL GREENSCHIST
Alteration altrtn present
Metamorphic Facies or Grade greenschist
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Geologic map unit -133.05528, 56.57556
Nearby scientific data Find additional scientific data near this location
Element Measured value Units of measure Analytical method
LOI 15.4 percent by weight (unknown method)
Na2O L0.15 percent by weight XRF
MgO 3.32 percent by weight XRF
Al2O3 15.7 percent by weight XRF
SiO2 45.3 percent by weight XRF
P2O5 0.17 percent by weight XRF
K2O 1.22 percent by weight XRF
CaO 5.35 percent by weight XRF
TiO2 1.93 percent by weight XRF
MnO 0.23 percent by weight XRF
FeTO3 10.4 percent Fe2O3 by weight XRF
Rubidium 24 ppm by weight XRF
Strontium 73 ppm by weight XRF
Yttrium 28 ppm by weight XRF
Zirconium 114 ppm by weight XRF
Niobium 17 ppm by weight XRF