Sample SQ46 WR

NavDat sample number 21095 · MONZONITE

Sample

Sample ID	SQ46 WR
Alternate ID	45
Rock name	MONZONITE
Rock type	PLUTONIC
Composition	FELSIC
Material	IGNEOUS
Comment	of the Weaver Lake pluton Ross 1958, about 1.9 km E of Heart Meadow Campground, 1.6 km W of Boulder Creek

Location

Latitude	36.73
Longitude	-118.788
Location	Sierra Nevada Batholith
State / province	California

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
98		88.2	107.8

Analyses

Mineral

Item	Value	Std. dev.	Unit	Method
PB	14.9		PPM	MS-ID
U	5.44		PPM	MS-ID
TH	15.6		PPM	MS-ID
PB206_PB204	19.457			MS-ID
PB207_PB204	15.648			MS-ID
PB208_PB204	39.26			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