Sample 92-050

NavDat sample number 57459 · BASALTIC-ANDESITE

Sample

Sample ID	92-050
Rock name	BASALTIC-ANDESITE
Rock type	PLUTONIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	46.2972
Longitude	-121.704
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	53.24		WT%	XRF
TIO2	1.61		WT%	XRF
AL2O3	17.82		WT%	XRF
FEO	9.87		WT%	XRF
MNO	0.22		WT%	XRF
MGO	4.43		WT%	XRF
CAO	9.02		WT%	XRF
NA2O	3.16		WT%	XRF
K2O	0.33		WT%	XRF
P2O5	0.3		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.