Sample MK85636

NavDat sample number 16279 · ANDESITE

Sample

Sample ID	MK85636
Rock name	ANDESITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	46.398
Longitude	-121.946
State / province	Washington

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
28		24	33

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	58.48		WT%	XRF
TIO2	1.12		WT%	XRF
AL2O3	17.15		WT%	XRF
FEOT	7.6		WT%	XRF
MNO	0.15		WT%	XRF
MGO	3.57		WT%	XRF
CAO	7.7		WT%	XRF
NA2O	2.8		WT%	XRF
K2O	1.21		WT%	XRF
P2O5	0.2		WT%	XRF
TOTAL	100.01		WT%	XRF

References

Korosec-Michael-A (compiler) (1987) Geologic map of the Mount Adams Quadrangle, Washington. Open-File Report - Washington (State). Division of Geology and Earth Resources. 1987.