Sample 90-043

NavDat sample number 57150

Sample

Sample ID	90-043
Rock type	VOLCANIC
Material	IGNEOUS

Location

Latitude	46.2586
Longitude	-121.823
State / province	Washington

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
21		20	22

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	58.54		WT%	XRF
TIO2	1.31		WT%	XRF
AL2O3	17.13		WT%	XRF
FEO	8.02		WT%	XRF
MNO	0.16		WT%	XRF
MGO	2.55		WT%	XRF
CAO	6.82		WT%	XRF
NA2O	4.11		WT%	XRF
K2O	1.13		WT%	XRF
P2O5	0.22		WT%	XRF

References

Swanson, Donald A (1992) Geologic map of the McCoy Peak Quadrangle, southern Cascade Range, Washington. Open-File Report - U. S. Geological Survey. 1992.