Sample 92-046

NavDat sample number 57494 · ANDESITE

Sample

Sample ID	92-046
Rock name	ANDESITE
Rock type	PLUTONIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	46.3103
Longitude	-121.711
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	62.78		WT%	XRF
TIO2	1.51		WT%	XRF
AL2O3	15.35		WT%	XRF
FEO	7.25		WT%	XRF
MNO	0.27		WT%	XRF
MGO	2.23		WT%	XRF
CAO	3.35		WT%	XRF
NA2O	6.03		WT%	XRF
K2O	0.61		WT%	XRF
P2O5	0.62		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.