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Sample A20

NavDat sample number 5516 · MONZONITE

Sample

Sample IDA20
Rock nameMONZONITE
Rock typePLUTONIC
CompositionFELSIC
MaterialIGNEOUS

Location

Latitude46.3783
Longitude-114.314
LocationSouth of trail along South Fork drainage of Bear Creek, approximately 4.4 km W of mouth of Bear Creek
State / provinceMontana
Volcanic fieldIdaho Batholith, Bitterroot Lobe

Age

Age (Ma)ErrorMinMaxGeologic ageDated by
39 37 41

Analyses

Mineral

ItemValueStd. dev.UnitMethod
RB87_SR860.416TIMS
SR87_SR860.7128TIMS
RB87_SR8687.3TIMS
SR87_SR860.7599TIMS
RB87_SR860.04TIMS
SR87_SR860.7133TIMS
RB87_SR861.01TIMS
SR87_SR860.7133TIMS
RB87_SR8610.3TIMS
SR87_SR860.7155TIMS

References