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Sample BC113

NavDat sample number 6842 · PHONOLITE

Sample

Sample IDBC113
Rock namePHONOLITE
Rock typeVOLCANIC
CompositionINTERMEDIATE
MaterialIGNEOUS
Commentturbulent texture; groundmass of sanidine, chlorite, smectite, kaolinite; phenocrysts of sanidine, anorthoclase, aegirine-augite, feldspathoids?; xenoliths of shale and sandstone

Location

Latitude44.6573
Longitude-104.764
LocationBarlow Canyon
State / provinceWyoming
Volcanic fieldBarlow Canyon contact zone

Age

Age (Ma)ErrorMinMaxGeologic ageDated by
50.9 49.2 52.6

Analyses

Whole rock

ItemValueStd. dev.UnitMethod
SIO262.67WT%XRF
AL2O322.88WT%XRF
FE2O31.94WT%XRF
FEO0.93WT%XRF
MGO0.81WT%XRF
CAO1.01WT%XRF
NA2O1.24WT%EPMA
K2O7.66WT%XRF
TIO20.44WT%XRF
MNO0.07WT%XRF

References