Sample tc89-25a

NavDat sample number 35802 · PYROCLASTIC-FALL

Sample

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

Item	Value	Unit	Method
SIO2	73	WT%	EPMA
TIO2	0.24	WT%	EPMA
AL2O3	11.3	WT%	EPMA
FE2O3T	1.83	WT%	EPMA
MNO	0.031	WT%	EPMA
MGO	0.072	WT%	EPMA
CAO	0.56	WT%	EPMA
BAO	0.05	WT%	EPMA
NA2O	2.2	WT%	EPMA
K2O	6.2	WT%	EPMA
CL	0.031	WT%	EPMA
F	0.28	WT%	EPMA
H2O	4.7	WT%	EPMA
TOTAL	100.4	WT%	EPMA
BA	580	PPM	XRF
MN	165	PPM	XRF
NB	38	PPM	XRF
RB	195	PPM	XRF
SR	24	PPM	XRF
TI	1330	PPM	XRF
Y	49	PPM	XRF
ZN	38	PPM	XRF
ZR	330	PPM	XRF
LA	75	PPM	XRF
ND	60	PPM	XRF
TH	31	PPM	XRF
CE	155	PPM	XRF