Sample tc89-13

NavDat sample number 35811 · PYROCLASTIC-FALL

Sample

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

Item	Value	Unit	Method
SIO2	73.5	WT%	EPMA
TIO2	0.15	WT%	EPMA
AL2O3	11.6	WT%	EPMA
FE2O3T	1.45	WT%	EPMA
MNO	0.024	WT%	EPMA
MGO	0.057	WT%	EPMA
CAO	0.51	WT%	EPMA
BAO	0.01	WT%	EPMA
NA2O	2.1	WT%	EPMA
K2O	6.3	WT%	EPMA
CL	0.071	WT%	EPMA
F	0.33	WT%	EPMA
H2O	6.1	WT%	EPMA
TOTAL	102.1	WT%	EPMA
BA	107	PPM	XRF
MN	145	PPM	XRF
NB	49	PPM	XRF
RB	234	PPM	XRF
SR	7	PPM	XRF
TI	910	PPM	XRF
Y	51	PPM	XRF
ZN	80	PPM	XRF
ZR	210	PPM	XRF
LA	85	PPM	XRF
ND	65	PPM	XRF
TH	33	PPM	XRF
CE	190	PPM	XRF