Sample 91PS-U242A

NavDat sample number 59390 · BASALTIC-ANDESITE

Sample

Sample ID	91PS-U242A
Rock name	BASALTIC-ANDESITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	46.2469
Longitude	-122.571
State / province	Oregon

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
37		36	39

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	52.6		WT%	XRF
TIO2	1.61		WT%	XRF
AL2O3	16.68		WT%	XRF
FEOT	9.26		WT%	XRF
MNO	0.16		WT%	XRF
MGO	6.22		WT%	XRF
CAO	9.39		WT%	XRF
NA2O	3.18		WT%	XRF
K2O	0.52		WT%	XRF
P2O5	0.38		WT%	XRF
TOTAL	99.49		WT%	XRF
LOI	1.34		WT%	XRF
BA	132		PPM	XRF
LA	-30		PPM	XRF
CE	33		PPM	XRF
RB	-10		PPM	XRF
SR	395		PPM	XRF
Y	26		PPM	XRF
ZR	174		PPM	XRF
NB	14		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.