Sample W32 WR

NavDat sample number 21112 · DIORITE

Sample

Sample ID	W32 WR
Alternate ID	55
Rock name	DIORITE
Rock type	PLUTONIC
Composition	INTERMEDIATE
Material	IGNEOUS
Comment	across from Three Rivers post office, Hwy. 198

Location

Latitude	36.44
Longitude	-118.903
Location	Sierra Nevada Batholith
State / province	California

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
104		93.6	114.4

Analyses

Mineral

Item	Value	Std. dev.	Unit	Method
PB	14.2		PPM	MS-ID
U	3.56		PPM	MS-ID
TH	14.6		PPM	MS-ID
PB206_PB204	19.194			MS-ID
PB207_PB204	15.742			MS-ID
PB208_PB204	39.187			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