Sample 92CG-V821

NavDat sample number 59676 · ANDESITE

Sample

Sample ID	92CG-V821
Rock name	ANDESITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	46.1475
Longitude	-122.394
State / province	Oregon

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
37		33.3	40.7

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	57.48		WT%	XRF
TIO2	1.89		WT%	XRF
AL2O3	16.26		WT%	XRF
FEOT	9.04		WT%	XRF
MNO	0.16		WT%	XRF
MGO	2.9		WT%	XRF
CAO	5.95		WT%	XRF
NA2O	4.47		WT%	XRF
K2O	1.41		WT%	XRF
P2O5	0.42		WT%	XRF
TOTAL	98.75		WT%	XRF
BA	350		PPM	XRF
LA	30		PPM	XRF
CE	46		PPM	XRF
RB	32		PPM	XRF
SR	335		PPM	XRF
Y	39		PPM	XRF
ZR	260		PPM	XRF
NB	20		PPM	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.