AGDB2 rock sample M172955

(metamorphic, greenschist)

Field Value
Lab ID M172955
Field ID 86RN60A
Job ID LR17
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 58.30417
Geographic longitude -134.35694
Sample source outcrop
Collection method composite
Primary media type rock
Secondary media type metamorphic
Sample media name greenschist
Sample comment chl-ank alt'd andesitic(?) grnschist
Additional sample attributes metasomatic; quartz present; mafic (greenstone, greenschist, amphibolite)
Geologic age Mesozoic undifferentiated
Stratigraphic unit Gastineau Volcanic Grp
Mineralization type contact metamorphic
Alteration type altered
Metamorphic facies or grade greenschist
(click for info)
Geologic map unit -134.35694, 58.30417
Nearby scientific data Find additional scientific data near this location
Element Measured value Units of measure Analytical method
Gold <0.1 parts per million by weight AA_F_HBr
Element Value Units Technique Digestion Decomposition Laboratory
Gold L0.1 ppm AA T HBr-Br2 and MIBK USGS-BAL