Sample 91PS-U15B

NavDat sample number 59693 · BASALTIC-ANDESITE

Sample

Sample ID	91PS-U15B
Rock name	BASALTIC-ANDESITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	46.1174
Longitude	-122.522
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	55.53		WT%	XRF
TIO2	1.87		WT%	XRF
AL2O3	16		WT%	XRF
FEOT	10.03		WT%	XRF
MNO	0.18		WT%	XRF
MGO	3.67		WT%	XRF
CAO	8.26		WT%	XRF
NA2O	3.64		WT%	XRF
K2O	0.52		WT%	XRF
P2O5	0.3		WT%	XRF
TOTAL	100.13		WT%	XRF
LOI	2.17		WT%	XRF
BA	186		PPM	XRF
LA	-30		PPM	XRF
CE	43		PPM	XRF
RB	19		PPM	XRF
SR	350		PPM	XRF
Y	28		PPM	XRF
ZR	194		PPM	XRF
NB	10		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.