Sample 93PS-U375

NavDat sample number 59880 · BASALTIC-ANDESITE

Sample

Sample ID	93PS-U375
Rock name	BASALTIC-ANDESITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	46.116
Longitude	-122.675
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		WT%	XRF
TIO2	1.2		WT%	XRF
AL2O3	19.89		WT%	XRF
FEOT	6.91		WT%	XRF
MNO	0.13		WT%	XRF
MGO	3.01		WT%	XRF
CAO	8.97		WT%	XRF
NA2O	3.65		WT%	XRF
K2O	0.98		WT%	XRF
P2O5	0.25		WT%	XRF
TOTAL	99.91		WT%	XRF
LOI	1.12		WT%	XRF
BA	186		PPM	XRF
LA	-30		PPM	XRF
CE	30		PPM	XRF
RB	16		PPM	XRF
SR	455		PPM	XRF
Y	21		PPM	XRF
ZR	168		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.