Sample 92PS-U241B

NavDat sample number 59853 · ANDESITE

Sample

Sample ID	92PS-U241B
Rock name	ANDESITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	46.2464
Longitude	-122.59
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	62.57		WT%	XRF
TIO2	1.34		WT%	XRF
AL2O3	15.85		WT%	XRF
FEOT	6.49		WT%	XRF
MNO	0.15		WT%	XRF
MGO	1.81		WT%	XRF
CAO	4.85		WT%	XRF
NA2O	4.77		WT%	XRF
K2O	1.67		WT%	XRF
P2O5	0.5		WT%	XRF
TOTAL	99.61		WT%	XRF
LOI	1.09		WT%	XRF
BA	390		PPM	XRF
LA	43		PPM	XRF
CE	81		PPM	XRF
RB	30		PPM	XRF
SR	315		PPM	XRF
Y	50		PPM	XRF
ZR	335		PPM	XRF
NB	26		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.