Sample 93PS-U339B

NavDat sample number 59729 · BASALTIC-ANDESITE

Sample

Sample ID	93PS-U339B
Rock name	BASALTIC-ANDESITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	46.1508
Longitude	-122.692
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	56.27		WT%	XRF
TIO2	1.64		WT%	XRF
AL2O3	16.11		WT%	XRF
FEOT	9.39		WT%	XRF
MNO	0.15		WT%	XRF
MGO	3.75		WT%	XRF
CAO	7.74		WT%	XRF
NA2O	4.1		WT%	XRF
K2O	0.5		WT%	XRF
P2O5	0.35		WT%	XRF
TOTAL	99.46		WT%	XRF
LOI	2.22		WT%	XRF
BA	220		PPM	XRF
LA	-30		PPM	XRF
CE	60		PPM	XRF
RB	35		PPM	XRF
SR	410		PPM	XRF
Y	19		PPM	XRF
ZR	186		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.