Sample CB12a(2)

NavDat sample number 130760 · DIORITE

Sample

Sample ID	CB12a(2)
Rock name	DIORITE
Rock type	PLUTONIC
Composition	INTERMEDIATE
Material	METAMORPHIC
Collected by	Saleeby and others
Comment	Blastomylonitic leucodiorite

Location

Latitude	39.785
Longitude	-121.448
State / province	California

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
205		184.5	225.5

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
PB206_PB204	2221			MS
ND143_ND144	0.512271			MS
SR87_SR86	0.703871			MS
U	0.0532		PPM	MS-ID
PB	0.0012		PPM	MS-ID
SR	0.00806		PPM	MS-ID

References

Saleeby, Jason B; Shaw, H F; Niemeyer, S; Moores, E M; Edelman, S H (1989) U/Pb, Sm/Nd and Rb/Sr geochronological and isotopic study of northernSierra Nevada ophiolitic assemblages, California. Contributions to Mineralogy and Petrology, vol.102, no.2, pp.205-220,1989 doi:10.1007/BF00375341