Sample 92-069

NavDat sample number 57464 · BASALTIC-ANDESITE

Sample

Sample ID	92-069
Rock name	BASALTIC-ANDESITE
Rock type	PLUTONIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	46.2753
Longitude	-121.685
State / province	Washington

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
26		19	33

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	54.8		WT%	XRF
TIO2	1.57		WT%	XRF
AL2O3	17.55		WT%	XRF
FEO	9.06		WT%	XRF
MNO	0.39		WT%	XRF
MGO	3.32		WT%	XRF
CAO	8.57		WT%	XRF
NA2O	3.43		WT%	XRF
K2O	1		WT%	XRF
P2O5	0.31		WT%	XRF

References

Swanson, Donald A (1994) Geologic map of the East Canyon Ridge Quadrangle, southern Cascade Range, Washington. Open-File Report - U. S. Geological Survey. 1994.