Sample L663

NavDat sample number 60147 · ANDESITE

Sample

Sample ID	L663
Rock name	ANDESITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	44.1878
Longitude	-122.236
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	61.72		WT%	XRF
TIO2	1.42		WT%	XRF
AL2O3	15.98		WT%	XRF
FEOT	6.54		WT%	XRF
MNO	0.14		WT%	XRF
MGO	2.33		WT%	XRF
CAO	5.44		WT%	XRF
NA2O	4.42		WT%	XRF
K2O	1.41		WT%	XRF
P2O5	0.58		WT%	XRF
TOTAL	99.79		WT%	XRF
LOI	1.4		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.