Sample 808-04F

NavDat sample number 13952

Sample

Sample ID	808-04F
Rock type	PLUTONIC
Material	IGNEOUS

Location

Latitude	45.92
Longitude	-114.162
State / province	Montana
Volcanic field	Idaho Batholith, Bitterroot Lobe

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
55		53.2	54.4

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
RB	77.4		PPM	XRF
SR	536		PPM	XRF
SR87_SR86	0.71325			TIMS

References

Criss, Robert E; Fleck, Robert J (1987) Petrogenesis, geochronology, and hydrothermal systems of the northern Idaho Batholith and adjacent areas based on (super 18?O/ (super 16?O, D/H, (super 87?Sr/ (super 86?Sr, K-Ar, and (super 40?Ar/ (super 39?Ar studies. U. S. Geological Survey Professional Paper, Report: P 1436, pp.95-137, 1987