Sample 43

NavDat sample number 63231 · PYROCLASTIC-FALL

Sample

Sample ID	43
Alternate ID	N-ASW-70
Rock name	PYROCLASTIC-FALL
Rock type	VOLCANIC
Composition	FELSIC
Material	IGNEOUS
Collected by	A.M. Sarna-Wojcicki
Comment	Huckleberry Ridge ? ash bed; lowermost ash, South Mountain area

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

Item	Value	Unit	Method
SIO2	76.52	WT%	EPMA
AL2O3	12.11	WT%	EPMA
FE2O3T	1.9	WT%	EPMA
MGO	0.02	WT%	EPMA
MNO	0.05	WT%	EPMA
CAO	0.6	WT%	EPMA
BAO	0.05	WT%	EPMA
TIO2	0.1	WT%	EPMA
NA2O	3.63	WT%	EPMA
K2O	5.01	WT%	EPMA
P	0.01	PPM	EPMA
SC	1.74	PPM	NAA
MN	301	PPM	NAA
ZN	122	PPM	NAA
RB	196	PPM	NAA
CS	3	PPM	NAA
LA	104	PPM	NAA
CE	203	PPM	NAA
ND	78	PPM	NAA
SM	14.45	PPM	NAA
EU	0.82	PPM	NAA
TB	1.98	PPM	NAA
DY	13.91	PPM	NAA
YB	7.62	PPM	NAA
LU	1.03	PPM	NAA
HF	9.39	PPM	NAA
TA	3.3	PPM	NAA
TH	28.6	PPM	NAA
U	5.7	PPM	NAA