Sample 13

NavDat sample number 63205 · PYROCLASTIC-FALL

Sample

Sample ID	13
Alternate ID	922K
Rock name	PYROCLASTIC-FALL
Rock type	VOLCANIC
Composition	FELSIC
Material	IGNEOUS
Collected by	E.W. Hildreth
Comment	Bishop ash at Owens River Gorge

Location

Latitude	37.5464
Longitude	-118.591
Location	Mono County
State / province	California

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
0.68		0.66	0.7

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SC	3.17		PPM	NAA
MN	281		PPM	NAA
ZN	66		PPM	NAA
RB	200		PPM	NAA
CS	6.1		PPM	NAA
LA	18.5		PPM	NAA
CE	42.2		PPM	NAA
ND	20		PPM	NAA
SM	3.89		PPM	NAA
EU	0.04		PPM	NAA
TB	0.6		PPM	NAA
DY	4.21		PPM	NAA
YB	2.84		PPM	NAA
LU	0.37		PPM	NAA
HF	3.92		PPM	NAA
TA	2.18		PPM	NAA
TH	21.4		PPM	NAA
U	7.13		PPM	NAA

References

Sarna-Wojcicki, Andrei M; Bowman, H R; Meyer, C E; Russell, P C; Woodward, M J; McCoy, Gail; Rowe, J J, Jr; Baedecker, P A; Asaro, Frank; Michael, Helen (1984) U. S. Geological Survey Professional Paper, Report: P 1293, 40 pp., 1984