Sample 85-085

NavDat sample number 57360 · ANDESITE

Sample

Sample ID	85-085
Rock name	ANDESITE
Rock type	PLUTONIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	46.4892
Longitude	-121.646
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	59.25		WT%	XRF
TIO2	1.26		WT%	XRF
AL2O3	16.65		WT%	XRF
FEO	7.95		WT%	XRF
MNO	0.13		WT%	XRF
MGO	2.72		WT%	XRF
CAO	5.88		WT%	XRF
NA2O	4.2		WT%	XRF
K2O	1.64		WT%	XRF
P2O5	0.31		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.