Sample 551

NavDat sample number 12116

Sample

Sample ID	551
Material	METAMORPHIC
Comment	Massive inclusion of pale greenish mica in quartz vein

Location

Latitude	39.4515
Longitude	-120.808
State / province	California

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
112.5		109.5	115.5

Analyses

WHOLE ROCK

Item	Value	Std. dev.	Unit	Method
SIO2	48		WT%	XRF
TIO2	0.15		WT%	XRF
AL2O3	34.7		WT%	XRF
CR2O3	0.05		WT%	XRF
FEO	0.57		WT%	XRF
MGO	0.73		WT%	XRF
NA2O	0.14		WT%	XRF
K2O	10.3		WT%	XRF
F	0.15		WT%	XRF
TOTAL	94.74		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.