Sample 93PS-U343A

NavDat sample number 59731 · BASALTIC-ANDESITE

Sample

Sample ID	93PS-U343A
Rock name	BASALTIC-ANDESITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	46.1506
Longitude	-122.697
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	56.35		WT%	XRF
TIO2	1.72		WT%	XRF
AL2O3	15.6		WT%	XRF
FEOT	10.17		WT%	XRF
MNO	0.16		WT%	XRF
MGO	3.63		WT%	XRF
CAO	7.83		WT%	XRF
NA2O	3.53		WT%	XRF
K2O	0.7		WT%	XRF
P2O5	0.3		WT%	XRF
TOTAL	99.27		WT%	XRF
LOI	1.46		WT%	XRF
BA	205		PPM	XRF
LA	-30		PPM	XRF
CE	48		PPM	XRF
RB	15		PPM	XRF
SR	420		PPM	XRF
Y	18		PPM	XRF
ZR	166		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.