Sample MK85638

NavDat sample number 16281 · ANDESITE

Sample

Sample ID	MK85638
Rock name	ANDESITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	46.365
Longitude	-121.961
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	59.74		WT%	XRF
TIO2	1.21		WT%	XRF
AL2O3	15.66		WT%	XRF
FEOT	8.16		WT%	XRF
MNO	0.13		WT%	XRF
MGO	3.86		WT%	XRF
CAO	7.23		WT%	XRF
NA2O	2.6		WT%	XRF
K2O	1.16		WT%	XRF
P2O5	0.24		WT%	XRF
TOTAL	99.99		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.