Sample 7

NavDat sample number 63199 · PYROCLASTIC-FALL

Sample

Sample ID	7
Alternate ID	N-ASW-117
Rock name	PYROCLASTIC-FALL
Rock type	VOLCANIC
Composition	FELSIC
Material	IGNEOUS
Collected by	A.M. Sarna-Wojcicki
Comment	correlative ash of the Friant Pumice Member of the Turlock Lake Formation

Location

Latitude	33.3747
Longitude	-115.769
Location	Imperial County
State / province	California

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
0.62		0.6	0.64

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SC	2.96		PPM	NAA
MN	252		PPM	NAA
ZN	25		PPM	NAA
RB	178		PPM	NAA
CS	5.6		PPM	NAA
LA	21.6		PPM	NAA
CE	48.6		PPM	NAA
ND	18		PPM	NAA
SM	3.61		PPM	NAA
EU	0.04		PPM	NAA
TB	0.55		PPM	NAA
DY	3.7		PPM	NAA
YB	2.54		PPM	NAA
LU	0.31		PPM	NAA
HF	3.53		PPM	NAA
TA	2.04		PPM	NAA
TH	20.1		PPM	NAA
U	6.5		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