Sample SQ15 WR

NavDat sample number 21114 · DIORITE

Sample

Sample ID	SQ15 WR
Alternate ID	58
Rock name	DIORITE
Rock type	PLUTONIC
Composition	INTERMEDIATE
Material	IGNEOUS
Comment	of the Potwisha pluton Ross 1958, Hwy. 180, 0.4 km W of Potwisha Campground

Location

Latitude	36.5133
Longitude	-118.803
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	16.5		PPM	MS-ID
U	3.92		PPM	MS-ID
TH	21.8		PPM	MS-ID
PB206_PB204	19.495			MS-ID
PB207_PB204	15.758			MS-ID
PB208_PB204	39.401			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