Sample 93PS-U345

NavDat sample number 59732 · DACITE

Sample

Sample ID	93PS-U345
Rock name	DACITE
Rock type	VOLCANIC
Composition	FELSIC
Material	IGNEOUS

Location

Latitude	46.1611
Longitude	-122.703
State / province	Oregon

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
37		33.3	40.7

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	64.65		WT%	XRF
TIO2	0.97		WT%	XRF
AL2O3	16.5		WT%	XRF
FEOT	5.34		WT%	XRF
MNO	0.1		WT%	XRF
MGO	1.82		WT%	XRF
CAO	4.32		WT%	XRF
NA2O	4.26		WT%	XRF
K2O	1.68		WT%	XRF
P2O5	0.34		WT%	XRF
TOTAL	99.79		WT%	XRF
LOI	1.93		WT%	XRF
BA	330		PPM	XRF
LA	-30		PPM	XRF
CE	67		PPM	XRF
RB	27		PPM	XRF
SR	315		PPM	XRF
Y	22		PPM	XRF
ZR	245		PPM	XRF
NB	17		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.