Sample 504

NavDat sample number 12115

Sample

Sample ID	504
Material	METAMORPHIC
Comment	Massive inclusion of pale greenish mica in east-dipping quartz vein

Location

Latitude	39.4578
Longitude	-120.836
State / province	California

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
111.6		108.6	114.6

Analyses

WHOLE ROCK

Item	Value	Std. dev.	Unit	Method
SIO2	47.2		WT%	XRF
TIO2	0.17		WT%	XRF
AL2O3	35.3		WT%	XRF
CR2O3	0.05		WT%	XRF
FEO	0.45		WT%	XRF
MGO	0.96		WT%	XRF
NA2O	0.16		WT%	XRF
K2O	10.1		WT%	XRF
F	0.1		WT%	XRF
TOTAL	94.45		WT%	XRF

References

Boehlke, J K; Kistler, R W (1986) Rb-Sr, K-Ar, and stable isotope evidence for the ages and sources of fluid components of gold-bearing quartz veins in the northern Sierra Nevada foothills metamorphic belt, California. Economic Geology and the Bulletin of the Society of Economic Geologists. 81; 2, Pages 296-322. 1986.