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Sample Jun-36

NavDat sample number 8452 · LATITE

Sample

Sample IDJun-36
Rock nameLATITE
Rock typeVOLCANIC
CompositionINTERMEDIATE
MaterialIGNEOUS
Commentcryptocrystalline to microcrystalline, porphyritic; phenocrysts of oligoclase, anorthoclase, ferrohastingsite, Na-ferroaugite, and biotite; groundmass of anorthoclase, magnetite, quartz, biotite, apatite, and dolomite

Location

Latitude44.5231
Longitude-104.467
LocationBear Lodge Mountain igneous complex
State / provinceWyoming
Volcanic fieldLytle Creek area

Age

Age (Ma)ErrorMinMaxGeologic ageDated by
42 36.7 63.5

Analyses

Whole rock

ItemValueStd. dev.UnitMethod
SIO257.18WT%EPMA
AL2O315.24WT%EPMA
FE2O32.43WT%EPMA
FEO3.82WT%EPMA
MGO3.17WT%EPMA
CAO7.08WT%EPMA
NA2O4.03WT%EPMA
K2O4.54WT%EPMA
TIO20.93WT%EPMA
P2O50.56WT%EPMA
MNO0.23WT%EPMA

References