Sample KK628851

NavDat sample number 16257 · ANDESITE

Sample

Sample ID	KK628851
Rock name	ANDESITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	46.458
Longitude	-122.448
State / province	Washington

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
36		35	37

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	60.79		WT%	XRF
TIO2	1.45		WT%	XRF
AL2O3	16.08		WT%	XRF
FEOT	8.02		WT%	XRF
MNO	0.14		WT%	XRF
MGO	3.06		WT%	XRF
CAO	5.63		WT%	XRF
NA2O	2.57		WT%	XRF
K2O	1.98		WT%	XRF
P2O5	0.28		WT%	XRF
TOTAL	100		WT%	XRF

References

Phillips-William-M (compiler) (1987) Geologic map of the Mount St. Helens Quadrangle, Washington and Oregon. Open-File Report - Washington (State). Division of Geology and Earth Resources. 1987.