Sample BR-309

NavDat sample number 55414 · DACITE

Sample

Sample ID	BR-309
Rock name	DACITE
Rock type	VOLCANIC
Composition	FELSIC
Material	IGNEOUS

Location

Latitude	44.2469
Longitude	-122.247
State / province	Oregon

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
26		17	35

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	63.76		WT%	XRF
TIO2	1.02		WT%	XRF
AL2O3	16.61		WT%	XRF
FEOT	5.05		WT%	XRF
MNO	0.13		WT%	XRF
MGO	1.76		WT%	XRF
CAO	4.57		WT%	XRF
NA2O	5.37		WT%	XRF
K2O	1.45		WT%	XRF
P2O5	0.27		WT%	XRF
TOTAL	99.78		WT%	XRF
LOI	2.31		WT%	XRF

References

Priest, George R; Black, Gerald L; Woller, Neil M; Taylor, Edward M (1988) Geologic map of the McKenzie Bridge Quadrangle, Lane County, Oregon. Geological Map Series (Portland). 48; 1988.