Sample BR-58

NavDat sample number 55423 · ANDESITE

Sample

Sample ID	BR-58
Rock name	ANDESITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	44.215
Longitude	-122.244
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	60.04		WT%	XRF
TIO2	1.44		WT%	XRF
AL2O3	16.33		WT%	XRF
FEOT	7.65		WT%	XRF
MNO	0.14		WT%	XRF
MGO	2.73		WT%	XRF
CAO	5.95		WT%	XRF
NA2O	4.16		WT%	XRF
K2O	1.27		WT%	XRF
P2O5	0.29		WT%	XRF
TOTAL	100.29		WT%	XRF
LOI	2.7		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.