Sample 91PS-U71

NavDat sample number 59686 · BASALTIC-ANDESITE

Sample

Sample ID	91PS-U71
Rock name	BASALTIC-ANDESITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	46.0611
Longitude	-122.587
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	52.14		WT%	XRF
TIO2	1.47		WT%	XRF
AL2O3	17.48		WT%	XRF
FEOT	9.14		WT%	XRF
MNO	0.15		WT%	XRF
MGO	5.83		WT%	XRF
CAO	9.7		WT%	XRF
NA2O	3.32		WT%	XRF
K2O	0.38		WT%	XRF
P2O5	0.39		WT%	XRF
TOTAL	100.02		WT%	XRF
LOI	1.28		WT%	XRF
BA	140		PPM	XRF
LA	-30		PPM	XRF
CE	40		PPM	XRF
RB	14		PPM	XRF
SR	425		PPM	XRF
Y	26		PPM	XRF
ZR	184		PPM	XRF
NB	19		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.