AGDB2 rock sample M172891

(metamorphic, metamafite)

Field Value
Lab ID M172891
Field ID 86RN16A
Job ID LR14
Sample submitter Brew, David A.
Project name Juneau AMRAP
Date submitted 7/15/1986 0:00:00
Country United States
State AK
Map quadrangle Juneau
Geographic latitude 58.30778
Geographic longitude -134.35
Sample source mine/quarry
Collection method grab/single
Primary media type rock
Secondary media type metamorphic
Sample media name metamafite
Sample comment bt-ank alt'd mafic sill (?)
Additional sample attributes metasomatic; quartz present; aluminosilicate, pelitic (schist, phyllite, mica gneiss)
Geologic age Tertiary undifferentiated
Mineralization type contact metamorphic
Alteration type altered
Igneous setting sill
Metamorphic facies or grade greenschist
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Geologic map unit -134.35, 58.30778
Nearby scientific data Find additional scientific data near this location
Element Measured value Units of measure Analytical method
Gold 0.5 parts per million by weight AA_F_HBr
Element Value Units Technique Digestion Decomposition Laboratory
Gold 0.5 ppm AA T HBr-Br2 and MIBK USGS-BAL