Sample TW061885B

NavDat sample number 16309 · ANDESITE

Sample

Sample ID	TW061885B
Rock name	ANDESITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	46.83
Longitude	-122.146
State / province	Washington

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
34		32	37

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	60.76		WT%	XRF
TIO2	0.8		WT%	XRF
AL2O3	17.8		WT%	XRF
FEOT	5.84		WT%	XRF
MNO	0.1		WT%	XRF
MGO	3.38		WT%	XRF
CAO	7.12		WT%	XRF
NA2O	2.87		WT%	XRF
K2O	1.17		WT%	XRF
P2O5	0.17		WT%	XRF
TOTAL	100		WT%	XRF

References

Schasse-Henry-William (compiler) (1987) Geologic map of the Centralia Quadrangle, Washington. Open-File Report - Washington (State). Division of Geology and Earth Resources. 1987.