Sample 92PS-U237

NavDat sample number 59851 · ANDESITE

Sample

Sample ID	92PS-U237
Rock name	ANDESITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	46.2369
Longitude	-122.598
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	57.79		WT%	XRF
TIO2	1.99		WT%	XRF
AL2O3	16.39		WT%	XRF
FEOT	8.33		WT%	XRF
MNO	0.15		WT%	XRF
MGO	3.14		WT%	XRF
CAO	6.11		WT%	XRF
NA2O	4.72		WT%	XRF
K2O	1		WT%	XRF
P2O5	0.37		WT%	XRF
TOTAL	99.55		WT%	XRF
LOI	1.05		WT%	XRF
BA	240		PPM	XRF
LA	-30		PPM	XRF
CE	39		PPM	XRF
RB	18		PPM	XRF
SR	420		PPM	XRF
Y	32		PPM	XRF
ZR	194		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.