Sample BR-88

NavDat sample number 55411 · DACITE

Sample

Sample ID	BR-88
Rock name	DACITE
Rock type	VOLCANIC
Composition	FELSIC
Material	IGNEOUS

Location

Latitude	44.2081
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	67.64		WT%	XRF
TIO2	0.79		WT%	XRF
AL2O3	16.17		WT%	XRF
FEOT	3.85		WT%	XRF
MNO	0.11		WT%	XRF
MGO	0.54		WT%	XRF
CAO	3.15		WT%	XRF
NA2O	5.4		WT%	XRF
K2O	2.16		WT%	XRF
P2O5	0.18		WT%	XRF
TOTAL	99.84		WT%	XRF
LOI	1.7		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.