Sample 34

NavDat sample number 63225 · PYROCLASTIC-FALL

Sample

Sample ID	34
Alternate ID	N-ASW-76
Rock name	PYROCLASTIC-FALL
Rock type	VOLCANIC
Composition	FELSIC
Material	IGNEOUS
Collected by	D.E. Marchand
Comment	ash in Pleistocene lake beds Waucoba Beds of Hopper, 1947, E. Owens Valley

Age (Ma)	Error	Min	Max	Geologic age	Dated by
2.3		2.07	2.53

Item	Value	Unit	Method
SIO2	77.48	WT%	EPMA
AL2O3	12.34	WT%	EPMA
FE2O3T	0.68	WT%	EPMA
MGO	0.03	WT%	EPMA
MNO	0.09	WT%	EPMA
CAO	0.32	WT%	EPMA
BAO	0.01	WT%	EPMA
TIO2	0.05	WT%	EPMA
NA2O	3.61	WT%	EPMA
K2O	5.35	WT%	EPMA
CL	0.04	WT%	EPMA
SC	4.66	PPM	NAA
MN	701	PPM	NAA
ZN	61	PPM	NAA
RB	323	PPM	NAA
CS	10.7	PPM	NAA
LA	16	PPM	NAA
CE	45.3	PPM	NAA
ND	24	PPM	NAA
SM	6	PPM	NAA
EU	0.06	PPM	NAA
TB	1.06	PPM	NAA
DY	6.9	PPM	NAA
YB	4.38	PPM	NAA
LU	0.58	PPM	NAA
HF	5.53	PPM	NAA
TA	4.61	PPM	NAA
TH	30.5	PPM	NAA
U	13.24	PPM	NAA