Sample 93PS-U350B

NavDat sample number 59733 · ANDESITE

Sample

Sample ID	93PS-U350B
Rock name	ANDESITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	46.1311
Longitude	-122.673
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	62.78		WT%	XRF
TIO2	1.23		WT%	XRF
AL2O3	16.03		WT%	XRF
FEOT	6.17		WT%	XRF
MNO	0.12		WT%	XRF
MGO	2.3		WT%	XRF
CAO	5.27		WT%	XRF
NA2O	4.15		WT%	XRF
K2O	1.62		WT%	XRF
P2O5	0.32		WT%	XRF
TOTAL	99.34		WT%	XRF
LOI	1.83		WT%	XRF
BA	360		PPM	XRF
LA	-30		PPM	XRF
CE	61		PPM	XRF
RB	25		PPM	XRF
SR	325		PPM	XRF
Y	30		PPM	XRF
ZR	275		PPM	XRF
NB	18		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.