Sample 808-04G

NavDat sample number 13953

Sample

Sample ID	808-04G
Rock type	PLUTONIC
Material	IGNEOUS

Location

Latitude	45.9217
Longitude	-114.16
State / province	Montana
Volcanic field	Challis epizonal plutonics and volcanics

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
40		36	44

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
RB	224		PPM	XRF
SR	87.1		PPM	XRF
SR87_SR86	0.71353			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