Sample SANLU12-91

NavDat sample number 42601

Sample

Sample ID	SANLU12-91
Rock type	PLUTONIC
Material	IGNEOUS

Location

Latitude	36.1845
Longitude	-121.703
State / province	California
Location comment	charnokitic tonalite of Compton (1960) and related rocks west of the Palo Colorado fault zone

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
83.46		83.02	83.9

Analyses

WHOLE ROCK

Item	Value	Std. dev.	Unit	Method
RB	16.1		PPM	EDXRF
SR	396		PPM	EDXRF
RB_SR	0.041			MS
RB87_SR86	0.119			MS
SR87_SR86	0.70691			MS
SR87_SR86_INITIAL	0.7066			MS
RB	9.9		PPM	MS-ID
SR	82.5		PPM	MS-ID
RB_SR	0.12			MS-ID
RB87_SR86	0.346			MS-ID
SR87_SR86	0.70678			MS
SR87_SR86_INITIAL	0.70632			MS
D18O	8.5		PERMILL	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.