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Sample BC116

NavDat sample number 6844 · PHONOLITE

Sample

Sample IDBC116
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
SIO263.39WT%XRF
AL2O324.76WT%XRF
FEO1.66WT%XRF
MGO1.24WT%XRF
CAO0.69WT%XRF
NA2O1.63WT%EPMA
K2O5.88WT%XRF
TIO20.48WT%XRF

References