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Sample 1029

NavDat sample number 130087 · ANDESITE

Sample

Sample ID1029
Rock nameANDESITE
Rock typeVOLCANIC
CompositionINTERMEDIATE
MaterialIGNEOUS
Collected byBacon and Lanphere
CommentCrater Peak, 900m NE of summit

Location

Latitude42.8503
Longitude-122.087
State / provinceOregon

Age

Age (Ma)ErrorMinMaxGeologic ageDated by
0.098 0.09 0.106

Analyses

Whole rock

ItemValueStd. dev.UnitMethod
SIO257.7WT%XRF
K2O1.521WT%XRF

References