NGDB rock sample M172959

Field Value
Unique Sample ID Number M172959
Analytical Job Number LR18
Submitter Name Brew, David A.
Date Submitted 19860715
Field Number 86RN62A
State AK
Latitude 58.30556
Longitude -134.35556
Source of Sample outcrop
Collection Method composite
Primary Classification rock
Secondary Classification metamorphic
Specific Name metamafite
Additional Attributes and Comments metasomatism unknown; quartz absent; mafic (greenstone, greenschist, amphibolite);; relatively unalt'd mafic sill;
Geologic Age or Range Mesozoic undifferentiated
Type of Metamorphism regional
Metamorphic Facies or Grade greenschist
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Geologic map unit -134.35556, 58.30556
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Element Measured value Units of measure Analytical method
Gold L0.1 ppm by weight AA (partial)