Sample 88CG-V424A

NavDat sample number 59677 · ANDESITE

Sample

Sample ID	88CG-V424A
Rock name	ANDESITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	46.1739
Longitude	-122.412
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	58.59		WT%	XRF
TIO2	1.08		WT%	XRF
AL2O3	17.06		WT%	XRF
FEOT	6.8		WT%	XRF
MNO	0.12		WT%	XRF
MGO	4.18		WT%	XRF
CAO	6.99		WT%	XRF
NA2O	3.68		WT%	XRF
K2O	1.24		WT%	XRF
P2O5	0.26		WT%	XRF
TOTAL	100.14		WT%	XRF
LOI	0.92		WT%	XRF
BA	305		PPM	XRF
LA	-30		PPM	XRF
CE	40		PPM	XRF
RB	30		PPM	XRF
SR	425		PPM	XRF
Y	17		PPM	XRF
ZR	194		PPM	XRF
NB	11		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.