Geochemistry of holocene and late pleistocene soils in the Rouge River and Scarborough Bluffs areas, south-central Ontario, Canada

Concentrations of major, minor and trace elements were measured in four soil profiles from south-central Ontario. The mean concentration values reported are probably representative of elemental levels in soils. The older soils in the sequence show declining Na, K and Al, mainly from Ca dilution, especially in the lower horizons. Iron and Mg levels were not affected by the variations in the Ca concentrations. Arsenic, Br and Sb concentrations did not increase appreciably in surface A horizons. The relative increase in Mn/Al in the lower horizons of the older soils may be related to leaching by soil or ground water movement. (author) 10 refs.; 4 figs.; 5 tabs