Sample MA5 WR

NavDat sample number 21118 · GRANODIORITE

Sample

Sample ID	MA5 WR
Alternate ID	68
Rock name	GRANODIORITE
Rock type	PLUTONIC
Composition	INTERMEDIATE
Material	IGNEOUS
Comment	of Benton Range, Hwy. 120, S of MB6642, 4.9 km W of S end Anetelope Lake

Location

Latitude	37.86
Longitude	-118.63
Location	Sierra Nevada Batholith
State / province	California

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
201		180.9	221.1

Analyses

Mineral

Item	Value	Std. dev.	Unit	Method
PB	13		PPM	MS-ID
U	3.72		PPM	MS-ID
TH	15.8		PPM	MS-ID
PB206_PB204	20.458			MS-ID
PB207_PB204	15.759			MS-ID
PB208_PB204	39.599			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