Sample L625A

NavDat sample number 60141 · ANDESITE

Sample

Sample ID	L625A
Rock name	ANDESITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	43.9749
Longitude	-122.114
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	58.22		WT%	XRF
TIO2	0.98		WT%	XRF
AL2O3	17.34		WT%	XRF
FEOT	6.75		WT%	XRF
MNO	0.13		WT%	XRF
MGO	3.31		WT%	XRF
CAO	6.62		WT%	XRF
NA2O	4.48		WT%	XRF
K2O	1.65		WT%	XRF
P2O5	0.52		WT%	XRF
TOTAL	100.35		WT%	XRF
LOI	0.78		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.