Sample MK8576

NavDat sample number 16286 · DACITE

Sample

Sample ID	MK8576
Rock name	DACITE
Rock type	VOLCANIC
Composition	FELSIC
Material	IGNEOUS

Location

Latitude	46.49
Longitude	-121.51
State / province	Washington

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
20		17	23

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	65.16		WT%	XRF
TIO2	1.14		WT%	XRF
AL2O3	14.69		WT%	XRF
FEOT	7.82		WT%	XRF
MNO	0.16		WT%	XRF
MGO	1.12		WT%	XRF
CAO	4.18		WT%	XRF
NA2O	3.84		WT%	XRF
K2O	1.51		WT%	XRF
P2O5	0.39		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.