Sample BR-44

NavDat sample number 55387 · ANDESITE

Sample

Sample ID	BR-44
Rock name	ANDESITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	44.2069
Longitude	-122.199
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	58.96		WT%	XRF
TIO2	1.03		WT%	XRF
AL2O3	18.72		WT%	XRF
FEOT	6.9		WT%	XRF
MNO	0.12		WT%	XRF
MGO	3.43		WT%	XRF
CAO	5.82		WT%	XRF
NA2O	3.77		WT%	XRF
K2O	1.02		WT%	XRF
P2O5	0.22		WT%	XRF
TOTAL	99.68		WT%	XRF
LOI	2.77		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.