NGDB rock sample M172873

Field Value
Unique Sample ID Number M172873
Analytical Job Number LR13
Submitter Name Brew, David A.
Date Submitted 19860715
Field Number 86RN01
State AK
Latitude 58.29056
Longitude -134.34639
Source of Sample outcrop
Collection Method single/grab
Primary Classification rock
Secondary Classification metamorphic
Specific Name greenschist
Additional Attributes and Comments not metasomatic; quartz unknown; mafic (greenstone, greenschist, amphibolite);; andesitic (?) greenschist;
Geologic Age or Range Mesozoic undifferentiated
Stratigraphic Unit Name GASTANEAU VOLCS.
Type of Metamorphism regional
Metamorphic Facies or Grade greenschist
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Geologic map unit -134.34639, 58.29056
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Element Measured value Units of measure Analytical method
Gold L0.1 ppm by weight AA (partial)