Sample 97PS-U590

NavDat sample number 59717 · ANDESITE

Sample

Sample ID	97PS-U590
Rock name	ANDESITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	46.0217
Longitude	-122.608
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	57.25		WT%	XRF
TIO2	1.9		WT%	XRF
AL2O3	15.93		WT%	XRF
FEOT	8.89		WT%	XRF
MNO	0.2		WT%	XRF
MGO	3.27		WT%	XRF
CAO	6.89		WT%	XRF
NA2O	4.17		WT%	XRF
K2O	1.1		WT%	XRF
P2O5	0.4		WT%	XRF
TOTAL	99.72		WT%	XRF
LOI	1		WT%	XRF
BA	206		PPM	XRF
RB	21		PPM	XRF
SR	358		PPM	XRF
Y	23		PPM	XRF
ZR	180		PPM	XRF
NB	18		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.