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Sample 36-48

NavDat sample number 8450 · LATITE

Sample

Sample ID36-48
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

Latitude44.5408
Longitude-104.489
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
SIO256.67WT%EPMA
AL2O315.3WT%EPMA
FE2O32.19WT%EPMA
FEO3.95WT%EPMA
MGO2.15WT%EPMA
CAO9.54WT%EPMA
NA2O3.97WT%EPMA
K2O4.51WT%EPMA
TIO20.69WT%EPMA
P2O50.47WT%EPMA
MNO0WT%EPMA

References