Sample 93PS-U372C

NavDat sample number 59879 · ANDESITE

Sample

Sample ID	93PS-U372C
Rock name	ANDESITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	46.1213
Longitude	-122.683
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	57.47		WT%	XRF
TIO2	1.26		WT%	XRF
AL2O3	17.79		WT%	XRF
FEOT	7.31		WT%	XRF
MNO	0.12		WT%	XRF
MGO	3.38		WT%	XRF
CAO	7.82		WT%	XRF
NA2O	3.51		WT%	XRF
K2O	1.11		WT%	XRF
P2O5	0.23		WT%	XRF
TOTAL	99.09		WT%	XRF
LOI	1.5		WT%	XRF
BA	220		PPM	XRF
LA	-30		PPM	XRF
CE	32		PPM	XRF
RB	17		PPM	XRF
SR	410		PPM	XRF
Y	19		PPM	XRF
ZR	184		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.