Sample tc89-14

NavDat sample number 35810 · PYROCLASTIC-FALL

Sample

Age (Ma)	Error	Min	Max	Geologic age	Dated by
11.25		8.6	13.9

Item	Value	Unit	Method
SIO2	73.2	WT%	EPMA
TIO2	0.15	WT%	EPMA
AL2O3	11.5	WT%	EPMA
FE2O3T	1.47	WT%	EPMA
MNO	0.026	WT%	EPMA
MGO	0.061	WT%	EPMA
CAO	0.52	WT%	EPMA
BAO	0	WT%	EPMA
NA2O	1.8	WT%	EPMA
K2O	6.8	WT%	EPMA
CL	0.069	WT%	EPMA
F	0.33	WT%	EPMA
H2O	6.1	WT%	EPMA
TOTAL	101.9	WT%	EPMA
BA	123	PPM	XRF
MN	170	PPM	XRF
NB	48	PPM	XRF
RB	227	PPM	XRF
SR	7	PPM	XRF
TI	930	PPM	XRF
Y	52	PPM	XRF
ZN	62	PPM	XRF
ZR	215	PPM	XRF
LA	90	PPM	XRF
ND	65	PPM	XRF
TH	37	PPM	XRF
CE	180	PPM	XRF