Sample 807-31B

NavDat sample number 13925

Sample

Sample ID	807-31B
Rock type	PLUTONIC
Material	IGNEOUS

Location

Latitude	45.8283
Longitude	-115.622
State / province	Idaho
Volcanic field	Idaho Batholith, Bitterroot Lobe

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
82		73.8	90.2

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
RB	92.9		PPM	XRF
SR	356.4		PPM	XRF
SR87_SR86	0.72151			TIMS
D18O	10.7		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