Sample SANLU12A-90

NavDat sample number 42526

Sample

Sample ID	SANLU12A-90
Rock type	PLUTONIC
Material	IGNEOUS

Location

Latitude	36.6095
Longitude	-121.957
State / province	California
Location comment	garnet bearing aplites and pegmatites in the porphyritic granodiorite of Monterey

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
82		73.8	90.2

Analyses

WHOLE ROCK

Item	Value	Std. dev.	Unit	Method
RB	201		PPM	EDXRF
SR	42.7		PPM	EDXRF
RB_SR	4.71			MS
RB87_SR86	13.64			MS
SR87_SR86	0.72346			MS
SR87_SR86_INITIAL	0.70732			MS

References

Kistler, R W; Champion, D E (2001) Rb-Sr whole-rock and mineral ages, K-Ar, (super 40) Ar/ (super 39) Ar, and U-Pb mineral ages, and strontium, lead, neodymium, and oxygen isotopic compositions for granitic rocks from the Salinian Composite Terrane, California. Open-File Report - U. S. Geological Survey. 2001.