Sample A

NavDat sample number 6424 · ANDESITE

Sample

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

Location

Latitude	46.02
Longitude	-121.577
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	59.8		WT%	UNKNOWN
TIO2	1.23		WT%	UNKNOWN
AL2O3	16.34		WT%	UNKNOWN
FEOT	8.07		WT%	UNKNOWN
MNO	0.18		WT%	UNKNOWN
MGO	2.77		WT%	UNKNOWN
CAO	7.33		WT%	UNKNOWN
NA2O	2.23		WT%	UNKNOWN
K2O	1.77		WT%	UNKNOWN
P2O5	0.28		WT%	UNKNOWN
TOTAL	99.98		WT%	UNKNOWN

References

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