Sample 88CG-V265B

NavDat sample number 59894 · ANDESITE

Sample

Sample ID	88CG-V265B
Rock name	ANDESITE
Rock type	PLUTONIC
Composition	INTERMEDIATE
Material	IGNEOUS
Comment	dike

Location

Latitude	46.2222
Longitude	-122.314
State / province	Oregon

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
34		30.6	37.4

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	58.61		WT%	XRF
TIO2	1.19		WT%	XRF
AL2O3	16.29		WT%	XRF
FEOT	7.38		WT%	XRF
MNO	0.12		WT%	XRF
MGO	4.06		WT%	XRF
CAO	7.26		WT%	XRF
NA2O	3.16		WT%	XRF
K2O	1.71		WT%	XRF
P2O5	0.23		WT%	XRF
TOTAL	100.27		WT%	XRF
LOI	2.2		WT%	XRF
BA	290		PPM	XRF
LA	-30		PPM	XRF
CE	41		PPM	XRF
RB	39		PPM	XRF
SR	325		PPM	XRF
Y	41		PPM	XRF
ZR	270		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.