Sample L668

NavDat sample number 60149 · ANDESITE

Sample

Sample ID	L668
Rock name	ANDESITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
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	58.97		WT%	XRF
TIO2	1		WT%	XRF
AL2O3	18.36		WT%	XRF
FEOT	6.87		WT%	XRF
MNO	0.12		WT%	XRF
MGO	3.2		WT%	XRF
CAO	6.34		WT%	XRF
NA2O	3.96		WT%	XRF
K2O	0.99		WT%	XRF
P2O5	0.2		WT%	XRF
TOTAL	99.87		WT%	XRF
LOI	1.91		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.