Sample B491

NavDat sample number 45304 · GRANODIORITE

Sample

Sample ID	B491
Rock name	GRANODIORITE
Rock type	PLUTONIC
Composition	INTERMEDIATE
Material	IGNEOUS
Collected by	Baird and others, 1979

Location

Latitude	33.3737
Longitude	-117.081
Location	Santa Ana Block
State / province	California
Location comment	Woodson Mountain

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
124		111.6	136.4

Analyses

WHOLE ROCK

Item	Value	Std. dev.	Unit	Method
RB	77.3		PPM	EDXRF
SR	130		PPM	EDXRF
RB_SR	0.592			TIMS
RB87_SR86	1.713			TIMS
SR87_SR86	0.70642			TIMS
SR87_SR86_INITIAL	0.7036			TIMS

References

Kistler, R W; Wooden, J L; Morton, D M (2003) Isotopes and ages in the northern Peninsular Ranges Batholith, Southern California. Open-File Report - U. S. Geological Survey. 2003.