Sample MK8589

NavDat sample number 12884 · ANDESITE

Sample

Sample ID	MK8589
Rock name	ANDESITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	46.2892
Longitude	-122.553
State / province	Washington

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
33.9		32.2	35.6

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	61.04		WT%	XRF
TIO2	1.14		WT%	XRF
AL2O3	16.22		WT%	XRF
FEOT	7.25		WT%	XRF
MNO	0.11		WT%	XRF
MGO	3.32		WT%	XRF
CAO	6.43		WT%	XRF
NA2O	2.93		WT%	XRF
K2O	1.36		WT%	XRF
P2O5	0.2		WT%	XRF
TOTAL	100		WT%	XRF

References

Phillips, William M; Korosec, Michael A; Schasse, Henry W; Anderson, James L; Hagen, Randy A (1986) K-Ar ages of volcanic rocks in Southwest Washington. Isochron/West. 47; Pages 18-24. 1986.