Sample MK85628

NavDat sample number 16284 · DACITE

Sample

Sample ID	MK85628
Rock name	DACITE
Rock type	VOLCANIC
Composition	FELSIC
Material	IGNEOUS

Location

Latitude	46.4428
Longitude	-121.824
State / province	Washington

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
25		23	27

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	64.16		WT%	XRF
TIO2	0.88		WT%	XRF
AL2O3	15.87		WT%	XRF
FEOT	7.29		WT%	XRF
MNO	0.14		WT%	XRF
MGO	1.7		WT%	XRF
CAO	5.29		WT%	XRF
NA2O	2.93		WT%	XRF
K2O	1.56		WT%	XRF
P2O5	0.19		WT%	XRF
TOTAL	100.01		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.