Sample 86-152

NavDat sample number 57143 · BASALTIC-ANDESITE

Sample

Sample ID	86-152
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	54.49		WT%	XRF
TIO2	1.59		WT%	XRF
AL2O3	21.11		WT%	XRF
FEO	6.78		WT%	XRF
MNO	0.28		WT%	XRF
MGO	2.45		WT%	XRF
CAO	6.1		WT%	XRF
NA2O	5.14		WT%	XRF
K2O	1.66		WT%	XRF
P2O5	0.38		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.