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Sample 1-52

NavDat sample number 4728 · MONZONITE

Sample

Sample ID1-52
Rock nameMONZONITE
Rock typePLUTONIC
CompositionFELSIC
MaterialIGNEOUS
Commentabundant phenocrysts of plagioclase and sometimes anorthoclase; aphanitic groundmass that is microgranular and contains orthoclase and quartz

Location

Latitude44.321
Longitude-103.79
State / provinceSouth Dakota
Volcanic fieldBlack Hill Tertiary igneous province

Age

Age (Ma)ErrorMinMaxGeologic ageDated by
47 40 55

Analyses

Whole rock

ItemValueStd. dev.UnitMethod
AL2O36.7211WT%NAA
FE2O33.2421WT%NAA
MGO0.7694WT%NAA
CAO4.4501WT%NAA
NA2O6.9367WT%NAA
TIO20.1509WT%NAA
MNO0.0374WT%NAA
BA948.26PPMNAA
CE553.431PPMNAA
CO3.334PPMNAA
CR17.7321PPMNAA
CS18.5701PPMNAA
EU2.3763PPMNAA
HF10.1715PPMNAA
LA120.121PPMNAA
LU0.4152PPMNAA
RB116.474PPMNAA
SB0.2596PPMNAA
SC1.8097PPMNAA
SM10.4762PPMNAA
TA1.7119PPMNAA
TH59.9527PPMNAA
V24.7139PPMNAA
YB5.0684PPMNAA

References