Sample 93-ER-A226B

NavDat sample number 60029 · BASALTIC-ANDESITE

Sample

Sample ID	93-ER-A226B
Rock name	BASALTIC-ANDESITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	46.4031
Longitude	-122.492
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	56.21		WT%	XRF
TIO2	1.66		WT%	XRF
AL2O3	17.51		WT%	XRF
FEOT	8.6		WT%	XRF
MNO	0.15		WT%	XRF
MGO	3.33		WT%	XRF
CAO	7.36		WT%	XRF
NA2O	3.9		WT%	XRF
K2O	1		WT%	XRF
P2O5	0.27		WT%	XRF
TOTAL	99.63		WT%	XRF
LOI	0.48		WT%	XRF
BA	200		PPM	XRF
LA	-30		PPM	XRF
CE	-30		PPM	XRF
RB	13		PPM	XRF
SR	455		PPM	XRF
Y	20		PPM	XRF
ZR	160		PPM	XRF
NB	13		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.