Sample 87-088

NavDat sample number 57151 · NOT GIVEN

Sample

Sample ID	87-088
Rock name	NOT GIVEN
Rock type	VOLCANIC
Material	IGNEOUS

Location

Latitude	46.2786
Longitude	-121.854
State / province	Washington

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
22		20	24

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	58.53		WT%	XRF
TIO2	1.14		WT%	XRF
AL2O3	19.93		WT%	XRF
FEO	6.2		WT%	XRF
MNO	0.12		WT%	XRF
MGO	1.48		WT%	XRF
CAO	6.66		WT%	XRF
NA2O	4.22		WT%	XRF
K2O	1.39		WT%	XRF
P2O5	0.34		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.