Sample 11

NavDat sample number 12577 · ANDESITE

Sample

Sample ID	11
Rock name	ANDESITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS
Comment	tuff breccia

Location

Latitude	45.772
Longitude	-121.848
State / province	Washington

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
32		28	36

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	64.49		WT%	XRF
TIO2	0.72		WT%	XRF
AL2O3	14.91		WT%	XRF
FEOT	6.2		WT%	XRF
MNO	0.18		WT%	XRF
MGO	1.17		WT%	XRF
CAO	6.57		WT%	XRF
NA2O	2.95		WT%	XRF
K2O	1.77		WT%	XRF
P2O5	1.03		WT%	XRF
TOTAL	100		WT%	XRF

References

Berri, Dulcy A; Korosec, Michael A (1983) Geological and geothermal investigation of the lower Wind River valley, southwestern Washington Cascade Range. Open-File Report - Washington (State). Division of Geology and Earth Resources. 83-5; 1983.