Sample 45

NavDat sample number 63233 · PYROCLASTIC-FALL

Sample

Sample ID	45
Alternate ID	N-ASW-74
Rock name	PYROCLASTIC-FALL
Rock type	VOLCANIC
Composition	FELSIC
Material	IGNEOUS
Collected by	M.O. Woodburne
Comment	Huckleberry Ridge ? ash bed; ash ash C, Tecopa area

Age (Ma)	Error	Min	Max	Geologic age	Dated by
2		1.9	2.1

Item	Value	Unit	Method
SIO2	75.94	WT%	EPMA
AL2O3	12.47	WT%	EPMA
FE2O3T	1.94	WT%	EPMA
MGO	0.02	WT%	EPMA
MNO	0.03	WT%	EPMA
CAO	0.64	WT%	EPMA
BAO	0.04	WT%	EPMA
TIO2	0.12	WT%	EPMA
NA2O	3.45	WT%	EPMA
K2O	5.23	WT%	EPMA
CL	0.12	WT%	EPMA
SC	1.8	PPM	NAA
MN	310	PPM	NAA
ZN	125	PPM	NAA
RB	192	PPM	NAA
CS	3.2	PPM	NAA
LA	102	PPM	NAA
CE	202	PPM	NAA
ND	80	PPM	NAA
SM	14.28	PPM	NAA
EU	0.89	PPM	NAA
TB	2.03	PPM	NAA
DY	13.6	PPM	NAA
YB	7.62	PPM	NAA
LU	1.05	PPM	NAA
HF	9.6	PPM	NAA
TA	3.25	PPM	NAA
TH	28.1	PPM	NAA
U	5.63	PPM	NAA