Sample MK85821

NavDat sample number 16304 · ANDESITE

Sample

Sample ID	MK85821
Rock name	ANDESITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	46.602
Longitude	-122.018
State / province	Washington

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
27		25	30

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	61.29		WT%	XRF
TIO2	0.57		WT%	XRF
AL2O3	17.89		WT%	XRF
FEOT	8.57		WT%	XRF
MNO	0.14		WT%	XRF
MGO	1.77		WT%	XRF
CAO	6.05		WT%	XRF
NA2O	3.13		WT%	XRF
K2O	0.41		WT%	XRF
P2O5	0.18		WT%	XRF
TOTAL	100.03		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.