Sample MK85525

NavDat sample number 16081 · ANDESITE

Sample

Sample ID	MK85525
Rock name	ANDESITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	45.919
Longitude	-121.976
State / province	Oregon

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
29		26	32

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	55.84		WT%	XRF
TIO2	1.34		WT%	XRF
AL2O3	17.54		WT%	XRF
FEOT	8.52		WT%	XRF
MNO	0.16		WT%	XRF
MGO	4.01		WT%	XRF
CAO	8.91		WT%	XRF
NA2O	2.69		WT%	XRF
K2O	0.68		WT%	XRF
P2O5	0.32		WT%	XRF
TOTAL	100.01		WT%	XRF

References

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