Sample L668A

NavDat sample number 60150 · DACITE

Sample

Sample ID	L668A
Rock name	DACITE
Rock type	VOLCANIC
Composition	FELSIC
Material	IGNEOUS

Location

Latitude	44.205
Longitude	-122.204
State / province	Oregon

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
16		14	19

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	65.24		WT%	XRF
TIO2	1.25		WT%	XRF
AL2O3	14.97		WT%	XRF
FEOT	6.02		WT%	XRF
MNO	0.14		WT%	XRF
MGO	1.48		WT%	XRF
CAO	4.27		WT%	XRF
NA2O	5.03		WT%	XRF
K2O	1.26		WT%	XRF
P2O5	0.34		WT%	XRF
TOTAL	100.63		WT%	XRF
LOI	2.03		WT%	XRF

References

du, Bray Edward A; John, David A; Sherrod, David R; Evarts, Russell C; Conrey, Richard M; Lexa, Jaroslav (2006) Geochemical database for volcanic rocks of the western Cascades, Washington, Oregon, and California. U. S. Geological Survey Data Series. 2006.