Sample L670

NavDat sample number 60152 · ANDESITE

Sample

Sample ID	L670
Rock name	ANDESITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	44.205
Longitude	-122.236
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	60.3		WT%	XRF
TIO2	0.86		WT%	XRF
AL2O3	17.62		WT%	XRF
FEOT	6.12		WT%	XRF
MNO	0.09		WT%	XRF
MGO	3.12		WT%	XRF
CAO	6		WT%	XRF
NA2O	4.02		WT%	XRF
K2O	1.51		WT%	XRF
P2O5	0.34		WT%	XRF
TOTAL	99.61		WT%	XRF
LOI	2.29		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.