Sample SQ67 WR

NavDat sample number 21099 · GRANODIORITE

Sample

Sample ID	SQ67 WR
Alternate ID	47
Rock name	GRANODIORITE
Rock type	PLUTONIC
Composition	INTERMEDIATE
Material	IGNEOUS
Comment	of the Mitchell Peak pluton Moore 1978, 1 km S of Mitchell Peak Lookout

Location

Latitude	36.7183
Longitude	-118.717
Location	Sierra Nevada Batholith
State / province	California

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
91		81.9	100.1

Analyses

Mineral

Item	Value	Std. dev.	Unit	Method
PB	12.5		PPM	MS-ID
U	5.31		PPM	MS-ID
TH	15.8		PPM	MS-ID
RB	7.48		PPM	MS-ID
SR	321.5		PPM	MS-ID
SR87_SR86	0.70733			MS-ID
PB206_PB204	19.224			MS-ID
PB207_PB204	15.665			MS-ID
PB208_PB204	39.221			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