Sample SQ75 WR

NavDat sample number 21084 · GRANODIORITE

Sample

Sample ID	SQ75 WR
Alternate ID	38
Rock name	GRANODIORITE
Rock type	PLUTONIC
Composition	INTERMEDIATE
Material	IGNEOUS
Comment	of the Giant Forest pluton Ross 1958, Hwy. 198, near General Sherman Tree

Location

Latitude	36.5817
Longitude	-118.753
Location	Sierra Nevada Batholith
State / province	California

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
99		89.1	108.9

Analyses

Mineral

Item	Value	Std. dev.	Unit	Method
PB	13.2		PPM	MS-ID
U	2.75		PPM	MS-ID
TH	19.4		PPM	MS-ID
RB	5.98		PPM	MS-ID
SR	190.1		PPM	MS-ID
SR87_SR86	0.70764			MS-ID
PB206_PB204	19.521			MS-ID
PB207_PB204	15.67			MS-ID
PB208_PB204	39.211			MS-ID

References

Chen, J H; Tilton, G R (1991) Applications of lead and strontium isotopic relationships to the petrogenesis of granitoid rocks, central Sierra Nevada Batholith, California. Geological Society of America Bulletin, vol.103, no.4, pp.439-447, Apr 1991 doi:10.1130/0016-7606(1991)103<0439:AOLASI>2.3.CO;2