Sample L688

NavDat sample number 60156 · DACITE

Sample

Sample ID	L688
Rock name	DACITE
Rock type	PLUTONIC
Composition	FELSIC
Material	IGNEOUS
Comment	dike

Location

Latitude	44.2108
Longitude	-122.3
State / province	Oregon

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
21		17	25

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	63.67		WT%	XRF
TIO2	1.1		WT%	XRF
AL2O3	16.37		WT%	XRF
FEOT	5.86		WT%	XRF
MNO	0.15		WT%	XRF
MGO	1.81		WT%	XRF
CAO	6.57		WT%	XRF
NA2O	3.48		WT%	XRF
K2O	0.72		WT%	XRF
P2O5	0.28		WT%	XRF
TOTAL	100.69		WT%	XRF
LOI	4.43		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.