Sample 75L-56

NavDat sample number 5380 · RHYOLITE

Sample

Sample ID	75L-56
Alternate ID	D104042
Rock name	RHYOLITE
Rock type	VOLCANIC
Composition	FELSIC
Material	IGNEOUS

Location

Latitude	38.45
Longitude	-112.783
Location	Bearskin Mountain Dome
State / province	Utah

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
0.75		0.65	0.85

Analyses

Mineral

Item	Value	Std. dev.	Unit	Method
RB	350		PPM	XRF
BA	4.5		PPM	INAA
SR	-10		PPM	XRF
TH	36		PPM	INAA
U	7.4		PPM	INAA
LA	25		PPM	NAA
CE	51		PPM	NAA
ND	9.6		PPM	NAA
SM	1.3		PPM	NAA
EU	0.04		PPM	NAA
GD	1.3		PPM	NAA
TB	0.31		PPM	NAA
DY	2.4		PPM	INAA
TM	0.47		PPM	NAA
YB	4.2		PPM	NAA
LU	0.79		PPM	NAA

References

Lipman, P W; Rowley, P D; Mehnert, H H; Evans, S H, Jr; Nash, W P; Brown, F H; Izett, G A; Naeser, C W; Friedman, I (1978) Pleistocene rhyolite of the Mineral Mountains, Utah; geothermal andarcheological significance. Journal of Research of the U. S. Geological Survey, vol.6, no.1,pp.133-147, Feb 1978