Sample 92PS-U235A

NavDat sample number 59848 · ANDESITE

Sample

Sample ID	92PS-U235A
Rock name	ANDESITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	46.2139
Longitude	-122.616
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	62.89		WT%	XRF
TIO2	1.28		WT%	XRF
AL2O3	15.9		WT%	XRF
FEOT	6.35		WT%	XRF
MNO	0.19		WT%	XRF
MGO	1.73		WT%	XRF
CAO	4.38		WT%	XRF
NA2O	5		WT%	XRF
K2O	1.77		WT%	XRF
P2O5	0.49		WT%	XRF
TOTAL	99.36		WT%	XRF
LOI	0.56		WT%	XRF
BA	415		PPM	XRF
LA	40		PPM	XRF
CE	80		PPM	XRF
RB	37		PPM	XRF
SR	325		PPM	XRF
Y	49		PPM	XRF
ZR	325		PPM	XRF
NB	25		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.