Sample 93TO-B85

NavDat sample number 59986 · DACITE

Sample

Sample ID	93TO-B85
Rock name	DACITE
Rock type	VOLCANIC
Composition	FELSIC
Material	IGNEOUS

Location

Latitude	46.3311
Longitude	-122.584
State / province	Oregon

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
36		32.4	39.6

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	63.67		WT%	XRF
TIO2	1.19		WT%	XRF
AL2O3	16.23		WT%	XRF
FEOT	5.43		WT%	XRF
MNO	0.1		WT%	XRF
MGO	1.67		WT%	XRF
CAO	4.34		WT%	XRF
NA2O	4.59		WT%	XRF
K2O	2.37		WT%	XRF
P2O5	0.39		WT%	XRF
TOTAL	99.89		WT%	XRF
LOI	1.93		WT%	XRF
BA	435		PPM	XRF
LA	40		PPM	XRF
CE	85		PPM	XRF
RB	50		PPM	XRF
SR	360		PPM	XRF
Y	31		PPM	XRF
ZR	315		PPM	XRF
NB	18		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.