Sample 91PS-U203

NavDat sample number 59391 · BASALTIC-ANDESITE

Sample

Sample ID	91PS-U203
Rock name	BASALTIC-ANDESITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	46.2489
Longitude	-122.563
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	52.3		WT%	XRF
TIO2	1.64		WT%	XRF
AL2O3	16.78		WT%	XRF
FEOT	9.46		WT%	XRF
MNO	0.18		WT%	XRF
MGO	6.21		WT%	XRF
CAO	9.55		WT%	XRF
NA2O	3.19		WT%	XRF
K2O	0.32		WT%	XRF
P2O5	0.37		WT%	XRF
TOTAL	99.57		WT%	XRF
LOI	2.1		WT%	XRF
BA	118		PPM	XRF
LA	-30		PPM	XRF
CE	45		PPM	XRF
RB	-10		PPM	XRF
SR	405		PPM	XRF
Y	26		PPM	XRF
ZR	186		PPM	XRF
NB	17		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.