Sample 92PS-U236A

NavDat sample number 59849 · ANDESITE

Sample

Sample ID	92PS-U236A
Rock name	ANDESITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	46.2142
Longitude	-122.601
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	57.78		WT%	XRF
TIO2	2		WT%	XRF
AL2O3	16.46		WT%	XRF
FEOT	8.35		WT%	XRF
MNO	0.17		WT%	XRF
MGO	2.83		WT%	XRF
CAO	6.21		WT%	XRF
NA2O	4.81		WT%	XRF
K2O	1.01		WT%	XRF
P2O5	0.38		WT%	XRF
TOTAL	99.38		WT%	XRF
LOI	0.68		WT%	XRF
BA	245		PPM	XRF
LA	-30		PPM	XRF
CE	50		PPM	XRF
RB	22		PPM	XRF
SR	420		PPM	XRF
Y	33		PPM	XRF
ZR	200		PPM	XRF
NB	15		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.