Sample 92-011

NavDat sample number 57460 · BASALTIC-ANDESITE

Sample

Sample ID	92-011
Rock name	BASALTIC-ANDESITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	46.354
Longitude	-121.678
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	53.29		WT%	XRF
TIO2	1.19		WT%	XRF
AL2O3	18.72		WT%	XRF
FEO	8.82		WT%	XRF
MNO	0.16		WT%	XRF
MGO	3.95		WT%	XRF
CAO	9.2		WT%	XRF
NA2O	3.63		WT%	XRF
K2O	0.83		WT%	XRF
P2O5	0.21		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.