Sample tc92-143

NavDat sample number 35813 · PYROCLASTIC-FALL

Sample

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

Item	Value	Unit	Method
SIO2	73.1	WT%	EPMA
TIO2	0.15	WT%	EPMA
AL2O3	11.5	WT%	EPMA
FE2O3T	1.44	WT%	EPMA
MNO	0.019	WT%	EPMA
MGO	0.05	WT%	EPMA
CAO	0.5	WT%	EPMA
BAO	0.01	WT%	EPMA
NA2O	1.6	WT%	EPMA
K2O	7	WT%	EPMA
CL	0.073	WT%	EPMA
F	0.32	WT%	EPMA
H2O	6	WT%	EPMA
TOTAL	101.6	WT%	EPMA
BA	61	PPM	XRF
MN	145	PPM	XRF
NB	50	PPM	XRF
RB	248	PPM	XRF
SR	6	PPM	XRF
TI	790	PPM	XRF
Y	62	PPM	XRF
ZN	40	PPM	XRF
ZR	205	PPM	XRF
LA	90	PPM	XRF
ND	55	PPM	XRF
TH	33	PPM	XRF
CE	150	PPM	XRF