Sample MK85817

NavDat sample number 16300 · ANDESITE

Sample

Sample ID	MK85817
Rock name	ANDESITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	46.5364
Longitude	-121.959
State / province	Washington

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
21		17	25

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	58.77		WT%	XRF
TIO2	1.09		WT%	XRF
AL2O3	15.81		WT%	XRF
FEOT	8.21		WT%	XRF
MNO	0.16		WT%	XRF
MGO	4.2		WT%	XRF
CAO	8.2		WT%	XRF
NA2O	3		WT%	XRF
K2O	0.4		WT%	XRF
P2O5	0.16		WT%	XRF
TOTAL	99.98		WT%	XRF

References

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