Sample 22

NavDat sample number 63213 · PYROCLASTIC-FALL

Sample

Age (Ma)	Error	Min	Max	Geologic age	Dated by
1.2		0.9	1.5

Item	Value	Unit	Method
SIO2	77.32	WT%	EPMA
AL2O3	12.32	WT%	EPMA
FE2O3T	0.83	WT%	EPMA
MGO	0.03	WT%	EPMA
MNO	0.05	WT%	EPMA
CAO	0.51	WT%	EPMA
BAO	0	WT%	EPMA
TIO2	0.06	WT%	EPMA
NA2O	3.83	WT%	EPMA
K2O	5.03	WT%	EPMA
P	0.01	PPM	EPMA
SC	2.68	PPM	NAA
MN	426	PPM	NAA
ZN	30	PPM	NAA
RB	227	PPM	NAA
CS	8.1	PPM	NAA
LA	20.2	PPM	NAA
CE	45.8	PPM	NAA
ND	19	PPM	NAA
SM	4.36	PPM	NAA
EU	0.04	PPM	NAA
TB	0.77	PPM	NAA
DY	5.14	PPM	NAA
YB	3.71	PPM	NAA
LU	0.5	PPM	NAA
HF	4.01	PPM	NAA
TA	3.02	PPM	NAA
TH	26.7	PPM	NAA
U	8.95	PPM	NAA