Sample EJ1-A2

NavDat sample number 41981 · RHYOLITE

Sample

Sample ID	EJ1-A2
Rock name	RHYOLITE
Rock type	VOLCANIC
Composition	FELSIC
Material	IGNEOUS

Location

Latitude	42.0066
Longitude	-115.341
State / province	Idaho

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
10.94		10.91	10.97

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	73.47		WT%	XRF
AL2O3	12.29		WT%	XRF
TIO2	0.3		WT%	XRF
FE2O3T	2.69		WT%	XRF
MNO	0.03		WT%	XRF
CAO	0.44		WT%	XRF
MGO	0.27		WT%	XRF
K2O	5.3		WT%	XRF
NA2O	2.27		WT%	XRF
P2O5	0.07		WT%	XRF
TOTAL	97.13		WT%	XRF
Y	83		PPM	XRF
SR	43		PPM	XRF
U	8		PPM	XRF
RB	207		PPM	XRF
TH	33		PPM	XRF
PB	27		PPM	XRF
GA	20		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