Sample I-496

NavDat sample number 42009 · RHYOLITE

Sample

Sample ID	I-496
Rock name	RHYOLITE
Rock type	VOLCANIC
Composition	FELSIC
Material	IGNEOUS

Location

Latitude	42.1131
Longitude	-115.467
State / province	Idaho

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
8.22		7.62	8.6

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	72.13		WT%	XRF
AL2O3	12.89		WT%	XRF
TIO2	0.47		WT%	XRF
FE2O3T	3.9		WT%	XRF
MNO	0.07		WT%	XRF
CAO	1.54		WT%	XRF
MGO	0.57		WT%	XRF
K2O	4.95		WT%	XRF
NA2O	3		WT%	XRF
P2O5	0.09		WT%	XRF
TOTAL	99.61		WT%	XRF
Y	64		PPM	XRF
SR	94		PPM	XRF
U	7		PPM	XRF
RB	158		PPM	XRF
TH	25		PPM	XRF
PB	26		PPM	XRF
GA	18		PPM	XRF

References

Bonnichsen, Bill compiler; Leeman, William P compiler; Bernt, Johncompiler; Godchaux, Martha M compiler; Jenks, Margaret Dcompiler (1994) Technical Report - Idaho Geological Survey, Report: 94-5, 1 sheet,1994