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Sample 218

NavDat sample number 130110 · ANDESITE

Sample

Sample ID218
Rock nameANDESITE
Rock typeVOLCANIC
CompositionINTERMEDIATE
MaterialIGNEOUS
Collected byBacon and Lanphere
CommentPhantom Cone, caldera wall below Kerr Notch

Location

Latitude42.9111
Longitude-122.074
State / provinceOregon

Age

Age (Ma)ErrorMinMaxGeologic ageDated by
0.346 0.326 0.366

Analyses

Whole rock

ItemValueStd. dev.UnitMethod
SIO262.6WT%XRF
K2O1.51WT%XRF

References