Sample W25

NavDat sample number 54436 · TUFF

Sample

Sample ID	W25
Rock name	TUFF
Rock type	VOLCANIC
Composition	FELSIC
Material	IGNEOUS
Comment	Wassuk Range, Mineral county, Nevada [700' N45W of Hill 5842, 3.8 miles NW of Black Mountain] Section approx. 17 m thck of the lower pahse of the Nine Hill Tuff. Near top of section, densely welded devitrified white to cream colored. Grey liesegang banding.

Age (Ma)	Error	Min	Max	Geologic age	Dated by
22.78		19.21	26.34

Item	Value	Unit	Method
SIO2	74.18	WT%	XRF
TIO2	0.2	WT%	XRF
AL2O3	12.26	WT%	XRF
FEO	0.63	WT%	XRF
MNO	0.04	WT%	XRF
MGO	0.47	WT%	XRF
CAO	2.45	WT%	XRF
NA2O	3.74	WT%	XRF
K2O	5.36	WT%	XRF
P2O5	0.12	WT%	XRF
ZN	38	PPM	XRF
GA	17	PPM	XRF
RB	185	PPM	XRF
SR	68	PPM	XRF
Y	38	PPM	XRF
ZR	381	PPM	XRF
NB	26	PPM	XRF
CS	5	PPM	XRF
BA	437	PPM	XRF
PB	30	PPM	XRF
TH	20	PPM	XRF
LA	60	PPM	XRF
CE	110	PPM	XRF
PR	26	PPM	XRF
ND	59	PPM	XRF
SM	9	PPM	XRF