Sample 84SH-V42

NavDat sample number 59918 · DACITE

Sample

Sample ID	84SH-V42
Rock name	DACITE
Rock type	VOLCANIC
Composition	FELSIC
Material	IGNEOUS

Location

Latitude	46.2406
Longitude	-122.082
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	65.64		WT%	XRF
TIO2	1.12		WT%	XRF
AL2O3	14.68		WT%	XRF
FEOT	6.42		WT%	XRF
MNO	0.12		WT%	XRF
MGO	1.4		WT%	XRF
CAO	3.91		WT%	XRF
NA2O	4.48		WT%	XRF
K2O	1.92		WT%	XRF
P2O5	0.31		WT%	XRF
TOTAL	99.77		WT%	XRF
LOI	2.87		WT%	XRF
BA	415		PPM	XRF
LA	-30		PPM	XRF
CE	66		PPM	XRF
RB	64		PPM	XRF
SR	200		PPM	XRF
Y	54		PPM	XRF
ZR	200		PPM	XRF
NB	22		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.