Sample BR-263

NavDat sample number 55399 · ANDESITE

Sample

Sample ID	BR-263
Rock name	ANDESITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	44.2378
Longitude	-122.181
State / province	Oregon

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
14		11	17

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	62.92		WT%	XRF
TIO2	1.36		WT%	XRF
AL2O3	15.68		WT%	XRF
FEOT	6.43		WT%	XRF
MNO	0.17		WT%	XRF
MGO	1.77		WT%	XRF
CAO	4.72		WT%	XRF
NA2O	4.87		WT%	XRF
K2O	1.59		WT%	XRF
P2O5	0.48		WT%	XRF
TOTAL	99.92		WT%	XRF
LOI	1		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.