Sample 86-153

NavDat sample number 57140 · BASALTIC-ANDESITE

Sample

Sample ID	86-153
Rock name	BASALTIC-ANDESITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	46.35
Longitude	-121.87
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	54.13		WT%	XRF
TIO2	1.15		WT%	XRF
AL2O3	18.48		WT%	XRF
FEO	8.22		WT%	XRF
MNO	0.16		WT%	XRF
MGO	4.21		WT%	XRF
CAO	9.46		WT%	XRF
NA2O	3.17		WT%	XRF
K2O	0.82		WT%	XRF
P2O5	0.2		WT%	XRF

References

Swanson, Donald A (1992) Geologic map of the McCoy Peak Quadrangle, southern Cascade Range, Washington. Open-File Report - U. S. Geological Survey. 1992.