Sample SQ61 WR

NavDat sample number 21097 · ALASKITE

Sample

Sample ID	SQ61 WR
Alternate ID	46
Rock name	ALASKITE
Rock type	PLUTONIC
Composition	FELSIC
Material	IGNEOUS
Comment	within the Big Meadow pluton Ross 1958, 1.2 km W of Stoney Creek 1.6 km E of Hwy. 198

Location

Latitude	36.6833
Longitude	-118.833
Location	Sierra Nevada Batholith
State / province	California

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
100		90	110

Analyses

Mineral

Item	Value	Std. dev.	Unit	Method
PB	30.7		PPM	MS-ID
U	6.98		PPM	MS-ID
TH	33.7		PPM	MS-ID
PB206_PB204	19.74			MS-ID
PB207_PB204	15.702			MS-ID
PB208_PB204	39.392			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