Sample BR-69

NavDat sample number 55390 · ANDESITE

Sample

Sample ID	BR-69
Rock name	ANDESITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	44.2156
Longitude	-122.2
State / province	Oregon

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
11		10	12

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	59.88		WT%	XRF
TIO2	0.89		WT%	XRF
AL2O3	17.91		WT%	XRF
FEOT	6.15		WT%	XRF
MNO	0.12		WT%	XRF
MGO	3.23		WT%	XRF
CAO	6.54		WT%	XRF
NA2O	3.99		WT%	XRF
K2O	1.07		WT%	XRF
P2O5	0.19		WT%	XRF
TOTAL	99.9		WT%	XRF
LOI	1.54		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.