Sample 86z21

NavDat sample number 31545 · TONALITE

Sample

Sample ID	86z21
Rock name	TONALITE
Rock type	PLUTONIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	45.095
Longitude	-116.107
Location	Idaho Batholith, western border zone
State / province	Idaho
Volcanic field	Little Goose Creek complex, Payette River tonalite

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
90		85	95

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
RB	50		PPM	MS-ID
SR	751		PPM	MS-ID
SR87_SR86	0.70889			TIMS
D18O	9.3		PERMILL	MS

References

Manduca, Cathryn A; Silver, Leon T; Taylor, Hugh P (1992) super 87 Sr/ super 86 Sr and super 18 O/ super 16 O isotopicsystematics and geochemistry of granitoid plutons across asteeply-dipping boundary between contrasting lithospheric blocks inwestern Idaho. Contributions to Mineralogy and Petrology, vol.109, no.3, pp.355-372,1992 doi:10.1007/BF00283324