Sample 90PS-U01

NavDat sample number 59393 · ANDESITE

Sample

Sample ID	90PS-U01
Rock name	ANDESITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	46.2453
Longitude	-122.531
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	59.09		WT%	XRF
TIO2	0.96		WT%	XRF
AL2O3	17.42		WT%	XRF
FEOT	6.29		WT%	XRF
MNO	0.12		WT%	XRF
MGO	4.03		WT%	XRF
CAO	6.95		WT%	XRF
NA2O	3.98		WT%	XRF
K2O	0.88		WT%	XRF
P2O5	0.28		WT%	XRF
TOTAL	100		WT%	XRF
LOI	1.58		WT%	XRF
BA	235		PPM	XRF
LA	-30		PPM	XRF
CE	59		PPM	XRF
RB	20		PPM	XRF
SR	460		PPM	XRF
Y	18		PPM	XRF
ZR	162		PPM	XRF
NB	16		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.