Sample 33

NavDat sample number 63224 · PYROCLASTIC-FALL

Sample

Sample ID	33
Alternate ID	N-ASW-121
Rock name	PYROCLASTIC-FALL
Rock type	VOLCANIC
Composition	FELSIC
Material	IGNEOUS
Collected by	A.M. Sarna-Wojcicki & others
Comment	Middle white ash, Manix basin, Mojave Desert

Age (Ma)	Error	Min	Max	Geologic age	Dated by
2		1.9	2.1

Item	Value	Unit	Method
SIO2	78.33	WT%	EPMA
AL2O3	11.99	WT%	EPMA
FE2O3T	0.71	WT%	EPMA
MGO	0.02	WT%	EPMA
MNO	0.09	WT%	EPMA
CAO	0.34	WT%	EPMA
BAO	0.01	WT%	EPMA
TIO2	0.07	WT%	EPMA
NA2O	4.68	WT%	EPMA
K2O	3.72	WT%	EPMA
CL	0.03	WT%	EPMA
SC	4.92	PPM	NAA
MN	701	PPM	NAA
ZN	50	PPM	NAA
RB	321	PPM	NAA
CS	10.6	PPM	NAA
LA	16.9	PPM	NAA
CE	52.3	PPM	NAA
ND	27	PPM	NAA
SM	6.37	PPM	NAA
EU	0.03	PPM	NAA
TB	1.04	PPM	NAA
DY	7.2	PPM	NAA
YB	4.38	PPM	NAA
LU	0.58	PPM	NAA
HF	5.91	PPM	NAA
TA	4.74	PPM	NAA
TH	29.7	PPM	NAA
U	13.37	PPM	NAA