Sample PS-67B-20A

NavDat sample number 3849 · TUFF

Sample

Sample ID	PS-67B-20A
Rock name	TUFF
Rock type	VOLCANIC
Composition	FELSIC
Material	IGNEOUS
Comment	Sierra Springs Tuff Member of the Pinto Peak

Location

Latitude	39.4121
Longitude	-115.966
State / province	Nevada

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
35.3		33.4	37.2

Analyses

Whole Rock

Item	Value	Std. dev.	Unit	Method
SIO2	65.8		WT%	UNKNOWN
AL2O3	15.6		WT%	UNKNOWN
FE2O3	2.9		WT%	UNKNOWN
FEO	2.9		WT%	UNKNOWN
MGO	1.3		WT%	UNKNOWN
CAO	3.4		WT%	UNKNOWN
NA2O	2.8		WT%	UNKNOWN
K2O	3.6		WT%	UNKNOWN
H2O_MINUS	1.1		WT%	UNKNOWN
H2O	1.8		WT%	UNKNOWN
TIO2	0.71		WT%	UNKNOWN
P2O5	0.18		WT%	UNKNOWN
MNO	0.06		WT%	UNKNOWN
CO2	-0.05		WT%	UNKNOWN
TOTAL	100.45		WT%	UNKNOWN

References

Blake, M C, Jr; McKee, E H; Marvin, R F; Silberman, M L; Nolan, ThomasB (1975) The Oligocene volcanic center at Eureka, Nevada. Journal of Research of the U. S. Geological Survey, vol.3, no.5,pp.605-612, Oct 1975