NGDB rock sample M172879

Field Value
Unique Sample ID Number M172879
Analytical Job Number LR13
Submitter Name Brew, David A.
Date Submitted 19860715
Field Number 86RN06B
State AK
Latitude 58.29417
Longitude -134.33889
Source of Sample outcrop
Collection Method composite
Primary Classification rock
Secondary Classification metamorphic
Specific Name greenschist
Additional Attributes and Comments metasomatic; quartz absent; mafic (greenstone, greenschist, amphibolite);; alt'd andesitic (?) grnschist;
Geologic Age or Range Mesozoic undifferentiated
Stratigraphic Unit Name GASTANEAU VOLCS.
Alteration altrtn present
Metamorphic Facies or Grade greenschist
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Geologic map unit -134.33889, 58.29417
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Element Measured value Units of measure Analytical method
Gold L0.1 ppm by weight AA (partial)