Sample 808-06B

NavDat sample number 13961

Sample

Sample ID	808-06B
Rock type	PLUTONIC
Material	IGNEOUS

Location

Latitude	46.1183
Longitude	-114.493
State / province	Montana
Volcanic field	Idaho Batholith, Bitterroot Lobe

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
55		49.5	60.5

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
RB	77.6		PPM	XRF
SR	870		PPM	XRF
SR87_SR86	0.71034			TIMS
D18O	8.9		PERMILL	MS

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