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Sample 1147

NavDat sample number 130164 · ANDESITE

Sample

Sample ID1147
Rock nameANDESITE
Rock typeVOLCANIC
CompositionINTERMEDIATE
MaterialIGNEOUS
Collected byBacon and Lanphere
CommentSouth of the Watchman, caldera rim 150m NE of Devils Backbone

Location

Latitude42.9597
Longitude-122.157
State / provinceOregon

Age

Age (Ma)ErrorMinMaxGeologic ageDated by
0.062 0.055 0.069

Analyses

Whole rock

ItemValueStd. dev.UnitMethod
SIO262.9WT%XRF
K2O2.136WT%XRF

References