Sample L234

NavDat sample number 60101 · ANDESITE

Sample

Sample ID	L234
Rock name	ANDESITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	45.0279
Longitude	-122.329
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	59.54		WT%	XRF
TIO2	0.8		WT%	XRF
AL2O3	18.71		WT%	XRF
FEOT	5.71		WT%	XRF
MNO	0.1		WT%	XRF
MGO	3.54		WT%	XRF
CAO	6.33		WT%	XRF
NA2O	3.89		WT%	XRF
K2O	1.2		WT%	XRF
P2O5	0.18		WT%	XRF
TOTAL	101.82		WT%	XRF
LOI	1.15		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.