Sample BR-70

NavDat sample number 55396 · ANDESITE

Sample

Sample ID	BR-70
Rock name	ANDESITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	44.2178
Longitude	-122.189
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	58.09		WT%	XRF
TIO2	0.91		WT%	XRF
AL2O3	18.72		WT%	XRF
FEOT	7.51		WT%	XRF
MNO	0.13		WT%	XRF
MGO	4.43		WT%	XRF
CAO	5.21		WT%	XRF
NA2O	3.44		WT%	XRF
K2O	1.26		WT%	XRF
P2O5	0.3		WT%	XRF
TOTAL	99.49		WT%	XRF
LOI	5.23		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.