Sample MK8581

NavDat sample number 16282 · ANDESITE

Sample

Sample ID	MK8581
Rock name	ANDESITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	46.4305
Longitude	-121.761
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	61.74		WT%	XRF
TIO2	1.11		WT%	XRF
AL2O3	16.66		WT%	XRF
FEOT	7.19		WT%	XRF
MNO	0.13		WT%	XRF
MGO	3.07		WT%	XRF
CAO	3.79		WT%	XRF
NA2O	4.3		WT%	XRF
K2O	1.72		WT%	XRF
P2O5	0.28		WT%	XRF
TOTAL	100		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.