NGDB rock sample M172891

Field Value
Unique Sample ID Number M172891
Analytical Job Number LR14
Submitter Name Brew, David A.
Date Submitted 19860715
Field Number 86RN16A
State AK
Latitude 58.30778
Longitude -134.35
Source of Sample mine/quarry
Collection Method single/grab
Primary Classification rock
Secondary Classification metamorphic
Specific Name metamafite
Additional Attributes and Comments metasomatic; quartz present; aluminosilicate, pelitic (schist, phyllite, mica gneiss);; bio-ank alt'd mafic sill (?);
Geologic Age or Range Tertiary undifferentiated
Stratigraphic Unit Name ALT'D MAFIC SILL
Alteration altrtn present
Metamorphic Facies or Grade greenschist
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Geologic map unit -134.35, 58.30778
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Element Measured value Units of measure Analytical method
Gold 0.5 ppm by weight AA (partial)