Sample tc89-28c

NavDat sample number 35797 · PYROCLASTIC-FALL

Sample

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

Item	Value	Unit	Method
SIO2	72.5	WT%	EPMA
TIO2	0.31	WT%	EPMA
AL2O3	11.5	WT%	EPMA
FE2O3T	2.16	WT%	EPMA
MNO	0.033	WT%	EPMA
MGO	0.114	WT%	EPMA
CAO	0.74	WT%	EPMA
BAO	0.11	WT%	EPMA
NA2O	2.5	WT%	EPMA
K2O	5.6	WT%	EPMA
CL	0.023	WT%	EPMA
F	0.3	WT%	EPMA
H2O	4.3	WT%	EPMA
TOTAL	100.1	WT%	EPMA
BA	1000	PPM	XRF
MN	205	PPM	XRF
NB	39	PPM	XRF
RB	184	PPM	XRF
SR	39	PPM	XRF
TI	1720	PPM	XRF
Y	55	PPM	XRF
ZN	36	PPM	XRF
ZR	415	PPM	XRF
LA	75	PPM	XRF
ND	55	PPM	XRF
TH	27	PPM	XRF
CE	140	PPM	XRF