Sample MA9 WR

NavDat sample number 21120 · GRANODIORITE

Sample

Sample ID	MA9 WR
Alternate ID	70
Rock name	GRANODIORITE
Rock type	PLUTONIC
Composition	INTERMEDIATE
Material	IGNEOUS
Comment	of Benton Range Rinehardt and Ross 1957, N of ridge crest on road E of Chidago Flat, 1.6 km SE of Kings Mill site

Location

Latitude	37.65
Longitude	-118.538
Location	Sierra Nevada Batholith
State / province	California

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
161		144.9	177.1

Analyses

Mineral

Item	Value	Std. dev.	Unit	Method
PB	12.3		PPM	MS-ID
U	2.32		PPM	MS-ID
TH	9.18		PPM	MS-ID
PB206_PB204	19.149			MS-ID
PB207_PB204	15.667			MS-ID
PB208_PB204	39.159			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