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Sample BL-579

NavDat sample number 8345 · LATITE

Sample

Sample IDBL-579
Rock nameLATITE
Rock typePLUTONIC
CompositionINTERMEDIATE
MaterialIGNEOUS
Comment holocrystalline; porphyritic with phenocrysts of oligoclase, andesine, alkali feldspar, salite, hastingsite, biotite, titaniferous magnetite, apatite, sphene, and melanite; trachytic groundmass; commonly altered and containing country rock xenoliths

Location

Latitude44.4707
Longitude-104.458
LocationWarren Peaks area of Bear Lodge Mountains
State / provinceWyoming
Volcanic fieldBear Lodge intrusive complex

Age

Age (Ma)ErrorMinMaxGeologic ageDated by
50.5 49.3 51.7

Analyses

Whole rock

ItemValueStd. dev.UnitMethod
SIO257.5WT%EPMA
AL2O317.5WT%EPMA
FEOT7.2WT%EPMA
MGO2.4WT%EPMA
CAO4.7WT%EPMA
NA2O3.9WT%EPMA
K2O5.8WT%EPMA
TIO20.6WT%EPMA
P2O50WT%EPMA
MNO0.3WT%EPMA
SO30WT%EPMA

References