Sample 808-04B

NavDat sample number 13948

Sample

Sample ID	808-04B
Rock type	PLUTONIC
Material	IGNEOUS

Location

Latitude	45.9683
Longitude	-114.14
State / province	Montana
Volcanic field	Idaho Batholith, Bitterroot Lobe

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
65		58.5	71.5

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
RB	74.5		PPM	XRF
SR	538		PPM	XRF
SR87_SR86	0.71342			TIMS
D18O	8.4		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