Sample L169A

NavDat sample number 60090 · DACITE

Sample

Sample ID	L169A
Rock name	DACITE
Rock type	PLUTONIC
Composition	FELSIC
Material	IGNEOUS
Comment	dike

Location

Latitude	44.8207
Longitude	-122.293
State / province	Oregon

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
19		14	25

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	70.28		WT%	XRF
TIO2	0.44		WT%	XRF
AL2O3	15.37		WT%	XRF
FEOT	2.88		WT%	XRF
MNO	0.06		WT%	XRF
MGO	1.46		WT%	XRF
CAO	2.98		WT%	XRF
NA2O	3.16		WT%	XRF
K2O	3.26		WT%	XRF
P2O5	0.1		WT%	XRF
TOTAL	99.55		WT%	XRF
LOI	2.52		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.