Sample 84SH-V56

NavDat sample number 59908 · ANDESITE

Sample

Sample ID	84SH-V56
Rock name	ANDESITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	46.2347
Longitude	-122.086
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	58.43		WT%	XRF
TIO2	1.39		WT%	XRF
AL2O3	16.37		WT%	XRF
FEOT	8.19		WT%	XRF
MNO	0.14		WT%	XRF
MGO	3.4		WT%	XRF
CAO	7.85		WT%	XRF
NA2O	3.51		WT%	XRF
K2O	0.47		WT%	XRF
P2O5	0.24		WT%	XRF
TOTAL	99.98		WT%	XRF
LOI	1.94		WT%	XRF
BA	245		PPM	XRF
LA	34		PPM	XRF
CE	70		PPM	XRF
RB	32		PPM	XRF
SR	385		PPM	XRF
Y	32		PPM	XRF
ZR	210		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.