Sample 84SH-V95

NavDat sample number 59916 · DACITE

Sample

Sample ID	84SH-V95
Rock name	DACITE
Rock type	PLUTONIC
Composition	FELSIC
Material	IGNEOUS
Comment	dike

Location

Latitude	46.2103
Longitude	-122.055
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	63.56		WT%	XRF
TIO2	1.11		WT%	XRF
AL2O3	15.81		WT%	XRF
FEOT	6.36		WT%	XRF
MNO	0.14		WT%	XRF
MGO	2		WT%	XRF
CAO	4.9		WT%	XRF
NA2O	4.11		WT%	XRF
K2O	1.74		WT%	XRF
P2O5	0.27		WT%	XRF
TOTAL	99.74		WT%	XRF
LOI	2.17		WT%	XRF
BA	370		PPM	XRF
LA	32		PPM	XRF
CE	60		PPM	XRF
RB	42		PPM	XRF
SR	250		PPM	XRF
Y	34		PPM	XRF
ZR	230		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.