Sample 84SH-V24

NavDat sample number 59915 · DACITE

Sample

Sample ID	84SH-V24
Rock name	DACITE
Rock type	PLUTONIC
Composition	FELSIC
Material	IGNEOUS
Comment	sill?

Location

Latitude	46.1794
Longitude	-122.052
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	64.26		WT%	XRF
TIO2	1.04		WT%	XRF
AL2O3	15.36		WT%	XRF
FEOT	6.27		WT%	XRF
MNO	0.11		WT%	XRF
MGO	1.88		WT%	XRF
CAO	4.83		WT%	XRF
NA2O	3.73		WT%	XRF
K2O	2.27		WT%	XRF
P2O5	0.25		WT%	XRF
TOTAL	99.57		WT%	XRF
LOI	3.05		WT%	XRF
BA	425		PPM	XRF
LA	36		PPM	XRF
CE	100		PPM	XRF
RB	80		PPM	XRF
SR	200		PPM	XRF
Y	48		PPM	XRF
ZR	365		PPM	XRF
NB	20		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.