Sample 92-072

NavDat sample number 57456 · BASALTIC-ANDESITE

Sample

Sample ID	92-072
Rock name	BASALTIC-ANDESITE
Rock type	PLUTONIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	46.2978
Longitude	-121.714
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	52.32		WT%	XRF
TIO2	1.35		WT%	XRF
AL2O3	18.59		WT%	XRF
FEO	9.12		WT%	XRF
MNO	0.2		WT%	XRF
MGO	4.61		WT%	XRF
CAO	9.86		WT%	XRF
NA2O	2.99		WT%	XRF
K2O	0.71		WT%	XRF
P2O5	0.24		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.