Sample 92PS-U177C

NavDat sample number 59723 · BASALTIC-ANDESITE

Sample

Sample ID	92PS-U177C
Rock name	BASALTIC-ANDESITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	46.2256
Longitude	-122.694
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	55.09		WT%	XRF
TIO2	1.53		WT%	XRF
AL2O3	18.09		WT%	XRF
FEOT	7.68		WT%	XRF
MNO	0.15		WT%	XRF
MGO	3.8		WT%	XRF
CAO	8.84		WT%	XRF
NA2O	3.79		WT%	XRF
K2O	0.71		WT%	XRF
P2O5	0.3		WT%	XRF
TOTAL	99.57		WT%	XRF
LOI	0.91		WT%	XRF
BA	190		PPM	XRF
LA	-30		PPM	XRF
CE	37		PPM	XRF
RB	10		PPM	XRF
SR	390		PPM	XRF
Y	24		PPM	XRF
ZR	172		PPM	XRF
NB	12		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.