Sample 91-051

NavDat sample number 57321 · BASALTIC-ANDESITE

Sample

Sample ID	91-051
Rock name	BASALTIC-ANDESITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	46.4457
Longitude	-121.65
State / province	Washington

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
28		24	33

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	53.01		WT%	XRF
TIO2	1.27		WT%	XRF
AL2O3	17.53		WT%	XRF
FEO	9.04		WT%	XRF
MNO	0.17		WT%	XRF
MGO	4.93		WT%	XRF
CAO	10.34		WT%	XRF
NA2O	2.98		WT%	XRF
K2O	0.56		WT%	XRF
P2O5	0.18		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.