Sample 91-080

NavDat sample number 57341 · BASALTIC-ANDESITE

Sample

Sample ID	91-080
Rock name	BASALTIC-ANDESITE
Rock type	PLUTONIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	46.4228
Longitude	-121.696
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	55.98		WT%	XRF
TIO2	1.61		WT%	XRF
AL2O3	17.65		WT%	XRF
FEO	8.72		WT%	XRF
MNO	0.16		WT%	XRF
MGO	3.64		WT%	XRF
CAO	6.6		WT%	XRF
NA2O	4.33		WT%	XRF
K2O	1		WT%	XRF
P2O5	0.3		WT%	XRF

References

Swanson, Donald A (1993) Geologic map of the Blue Lake Quadrangle, southern Cascade Range, Washington. Open-File Report - U. S. Geological Survey. 1993.