Sample 84SH-V27

NavDat sample number 59911 · ANDESITE

Sample

Sample ID	84SH-V27
Rock name	ANDESITE
Rock type	PLUTONIC
Composition	INTERMEDIATE
Material	IGNEOUS
Comment	intrusion

Location

Latitude	46.1178
Longitude	-122.152
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	60.07		WT%	XRF
TIO2	1.12		WT%	XRF
AL2O3	16.42		WT%	XRF
FEOT	6.91		WT%	XRF
MNO	0.12		WT%	XRF
MGO	3.5		WT%	XRF
CAO	6.63		WT%	XRF
NA2O	3.37		WT%	XRF
K2O	1.67		WT%	XRF
P2O5	0.19		WT%	XRF
TOTAL	100.01		WT%	XRF
LOI	1.66		WT%	XRF
BA	325		PPM	XRF
LA	34		PPM	XRF
CE	58		PPM	XRF
RB	44		PPM	XRF
SR	320		PPM	XRF
Y	32		PPM	XRF
ZR	255		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.