Sample MK85723

NavDat sample number 16302 · ANDESITE

Sample

Sample ID	MK85723
Rock name	ANDESITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	46.517
Longitude	-121.819
State / province	Washington

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
26		22	30

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	58.87		WT%	XRF
TIO2	1.52		WT%	XRF
AL2O3	18.05		WT%	XRF
FEOT	9.59		WT%	XRF
MNO	0.17		WT%	XRF
MGO	2.63		WT%	XRF
CAO	5.3		WT%	XRF
NA2O	3.33		WT%	XRF
K2O	0.43		WT%	XRF
P2O5	0.11		WT%	XRF
TOTAL	100		WT%	XRF

References

Schasse-Henry-William (compiler) (1987) Geologic map of the Mount Rainier Quadrangle, Washington. Open-File Report - Washington (State). Division of Geology and Earth Resources. 1987.