Sample CRS-353

NavDat sample number 7377 · RHYOLITE

Sample

Sample ID	CRS-353
Rock name	RHYOLITE
Rock type	VOLCANIC
Composition	FELSIC
Material	IGNEOUS

Location

Latitude	47.013
Longitude	-121.72
State / province	Washington

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
21		17	25

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	74.7		WT%	XRF
TIO2	0.45		WT%	XRF
AL2O3	12.22		WT%	XRF
FEOT	3.15		WT%	XRF
MNO	0.04		WT%	XRF
MGO	0.27		WT%	XRF
CAO	1.3		WT%	XRF
NA2O	4.26		WT%	XRF
K2O	3.56		WT%	XRF
P2O5	0.06		WT%	XRF
TOTAL	100.08		WT%	XRF
LOI	5.8		WT%	XRF

References

Fischer, Joseph Fred (1970) The geology of the White River-Carbon Ridge area, Cedar Lake Quadrangle, Cascade Mountains, Washington.