Sample 93PS-U388

NavDat sample number 59737 · BASALTIC-ANDESITE

Sample

Sample ID	93PS-U388
Rock name	BASALTIC-ANDESITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	46.1669
Longitude	-122.731
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	53.17		WT%	XRF
TIO2	2.02		WT%	XRF
AL2O3	15.78		WT%	XRF
FEOT	10.8		WT%	XRF
MNO	0.17		WT%	XRF
MGO	4.56		WT%	XRF
CAO	8.53		WT%	XRF
NA2O	3.85		WT%	XRF
K2O	0.77		WT%	XRF
P2O5	0.35		WT%	XRF
TOTAL	99.49		WT%	XRF
LOI	1.47		WT%	XRF
BA	186		PPM	XRF
LA	-30		PPM	XRF
CE	31		PPM	XRF
RB	12		PPM	XRF
SR	360		PPM	XRF
Y	33		PPM	XRF
ZR	172		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.