Sample 84SH-V88

NavDat sample number 59905 · ANDESITE

Sample

Sample ID	84SH-V88
Rock name	ANDESITE
Rock type	PLUTONIC
Composition	INTERMEDIATE
Material	IGNEOUS
Comment	dike

Location

Latitude	46.2478
Longitude	-122.106
State / province	Oregon

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
25		22.5	27.5

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	57.64		WT%	XRF
TIO2	1.33		WT%	XRF
AL2O3	17.19		WT%	XRF
FEOT	8.4		WT%	XRF
MNO	0.14		WT%	XRF
MGO	3.17		WT%	XRF
CAO	8.09		WT%	XRF
NA2O	3.43		WT%	XRF
K2O	0.39		WT%	XRF
P2O5	0.22		WT%	XRF
TOTAL	99.65		WT%	XRF
LOI	2.2		WT%	XRF
BA	385		PPM	XRF
LA	-30		PPM	XRF
CE	36		PPM	XRF
RB	22		PPM	XRF
SR	440		PPM	XRF
Y	26		PPM	XRF
ZR	194		PPM	XRF
NB	-10		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.