Sample B

NavDat sample number 6425 · ANDESITE

Sample

Sample ID	B
Rock name	ANDESITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	45.987
Longitude	-121.59
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	58.67		WT%	UNKNOWN
TIO2	0.78		WT%	UNKNOWN
AL2O3	17.31		WT%	UNKNOWN
FEOT	9.48		WT%	UNKNOWN
MNO	0.25		WT%	UNKNOWN
MGO	2.82		WT%	UNKNOWN
CAO	6.23		WT%	UNKNOWN
NA2O	3.15		WT%	UNKNOWN
K2O	0.89		WT%	UNKNOWN
P2O5	0.42		WT%	UNKNOWN
TOTAL	99.99		WT%	UNKNOWN

References

Brown, J C (1979) Geology and water resources of Klickitat County. Water-Supply Bulletin - Washington State Department of Ecology. 50, 1979.