Sample UE7BA-575.5

NavDat sample number 84233 · PYROCLASTIC-FLOW

Sample

Sample ID	UE7BA-575.5
Rock name	PYROCLASTIC-FLOW
Rock type	VOLCANIC
Composition	FELSIC
Material	IGNEOUS
Comment	Core is medium dark gray and lesser grayish red purple and grayish black devitrified densely welded tuff with common felsic phenocrysts and rare lithics. Biotite is present.

Location

Latitude	37.0853
Longitude	-116.045
State / province	NEVADA

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
11.645		11.655	11.635

Analyses

Whole Rock

Item	Value	Std. dev.	Unit	Method
AL2O3	15.29		WT%	XRF
CAO	1.67		WT%	XRF
FE2O3	2.267		WT%	XRF
K2O	5.18		WT%	XRF
LOI	0.41		WT%	XRF
MGO	0.55		WT%	XRF
MNO	0.0775		WT%	XRF
MN	0.06		WT%	XRF
NA2O	4.21		WT%	XRF
P2O5	0.09		WT%	XRF
SIO2	69.07		WT%	XRF
TIO2	0.41		WT%	XRF
TOTAL	99.21		WT%	XRF
CO2	0.0293		WT%	UNKNOWN
LOI	0.5		WT%	UNKNOWN

References

Davies, W. J., Gonzales, J.L., and Drellack, S.L., Jr. (1982) Lithologic and geophysical logs of selected drill holes in eastern Area 4, and western Area 7, Nevada Test Site. Nevada Test Site (Vol III), DOE/NV/10322-3, 1982