Sample B-88

NavDat sample number 3788 · TUFF

Sample

Sample ID	B-88
Rock name	TUFF
Rock type	VOLCANIC
Composition	FELSIC
Material	IGNEOUS
Comment	Coarse lapilli, and block to 30 cm. in diameter, concentrated in 1-2m thick uit at base of ash-flow; non-welded

Age (Ma)	Error	Min	Max	Geologic age	Dated by
0.76		0.759	0.761

Item	Value	Unit	Method
SIO2	74.6	WT%	WET
TIO2	0.09	WT%	WET
AL2O3	12.01	WT%	WET
FE2O3	0.55	WT%	WET
FEO	0.15	WT%	WET
MNO	0.03	WT%	WET
MGO	0.01	WT%	WET
CAO	0.57	WT%	WET
NA2O	3.46	WT%	WET
K2O	4.85	WT%	WET
P2O5	0.01	WT%	WET
H2O	1.92	WT%	WET
TOTAL	99	WT%	WET
RB	188	PPM	XRF
SR	10	PPM	XRF
Y	19	PPM	XRF
ZR	91	PPM	XRF
BA	18.8	PPM	XRF
BA	32.04	PPM	XRF
H2O_MINUS	0.67	WT%	WET
LA	24.8	PPM	INAA
CE	47.5	PPM	INAA
ND	20.8	PPM	INAA
SM	3.34	PPM	INAA
EU	0.054	PPM	INAA
TB	0.44	PPM	INAA
DY	3.01	PPM	INAA
YB	1.89	PPM	INAA
LU	0.31	PPM	INAA
RB	159	PPM	INAA
CS	4.5	PPM	INAA
BA	30	PPM	INAA
TH	17	PPM	INAA
U	5.24	PPM	INAA
SC	2.51	PPM	INAA
HF	2.84	PPM	INAA
TA	1.55	PPM	INAA
CR	2.4	PPM	INAA
CO	0.34	PPM	INAA
ZN	33	PPM	INAA
MN	222	PPM	INAA
W	2.6	PPM	INAA
SB	1	PPM	INAA