Sample 391-4

NavDat sample number 63276 · TUFF

Sample

Sample ID	391-4
Rock name	TUFF
Rock type	VOLCANIC
Composition	FELSIC
Material	IGNEOUS

Location

Latitude	36.625
Longitude	-117.302
Location	Cottonwood Mtns
State / province	California

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
20.35		20.16	20.54

Analyses

Minerial

Item	Value	Std. dev.	Unit	Method
SIO2	65.49		WT%	UNKNOWN
AL2O3	19.18		WT%	UNKNOWN
FEO	0.08		WT%	UNKNOWN
CAO	0.15		WT%	UNKNOWN
NA2O	2.93		WT%	UNKNOWN
K2O	12.55		WT%	UNKNOWN
SRO	0.1		WT%	UNKNOWN
BAO	0.42		WT%	UNKNOWN
TOTAL	100.9		WT%	UNKNOWN

References

Snow, J Kent; Lux, Daniel R (1999) Tectono-sequence stratigraphy of Tertiary rocks in the Cottonwood Mountains and northern Death Valley area, California and Nevada. Special Paper - Geological Society of America. 333; Pages 17-64. 1999.