Sample 92-038

NavDat sample number 57470 · BASALTIC-ANDESITE

Sample

Sample ID	92-038
Rock name	BASALTIC-ANDESITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	46.3193
Longitude	-121.688
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	56.7		WT%	XRF
TIO2	1.51		WT%	XRF
AL2O3	17.58		WT%	XRF
FEO	8.55		WT%	XRF
MNO	0.18		WT%	XRF
MGO	3.41		WT%	XRF
CAO	6.29		WT%	XRF
NA2O	4.59		WT%	XRF
K2O	0.92		WT%	XRF
P2O5	0.27		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.