Sample MK85910

NavDat sample number 16275 · ANDESITE

Sample

Sample ID	MK85910
Rock name	ANDESITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	46.31
Longitude	-121.925
State / province	Washington

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
29		25	33

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	57.1		WT%	XRF
TIO2	1.65		WT%	XRF
AL2O3	16.34		WT%	XRF
FEOT	9.09		WT%	XRF
MNO	0.17		WT%	XRF
MGO	3.11		WT%	XRF
CAO	6.96		WT%	XRF
NA2O	4.07		WT%	XRF
K2O	1.23		WT%	XRF
P2O5	0.27		WT%	XRF
TOTAL	99.82		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.