Sample 92PS-U309

NavDat sample number 59697 · ANDESITE

Sample

Sample ID	92PS-U309
Rock name	ANDESITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	46.1199
Longitude	-122.615
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	57.04		WT%	XRF
TIO2	1.76		WT%	XRF
AL2O3	16.3		WT%	XRF
FEOT	8.73		WT%	XRF
MNO	0.17		WT%	XRF
MGO	3.33		WT%	XRF
CAO	7.24		WT%	XRF
NA2O	4.17		WT%	XRF
K2O	0.71		WT%	XRF
P2O5	0.55		WT%	XRF
TOTAL	99.65		WT%	XRF
LOI	1.76		WT%	XRF
BA	380		PPM	XRF
LA	36		PPM	XRF
CE	71		PPM	XRF
RB	30		PPM	XRF
SR	550		PPM	XRF
Y	42		PPM	XRF
ZR	285		PPM	XRF
NB	23		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.