Distribution of Elements in Some Aridisols Developed on Quaternary Sediments

Abstract

Seven pedons of Aridisols, developed on aeolian an<1 alluvial plains, and
formed during early Holocene to early Pleistocene in western Rajasthan
were studied for the total elemental composition, their distribution and
:association of elements with each other and also with soil constituents.
Results showed that Si was the most predominant element followed by Al, Fe,
Ca, Mg. Na, K, Mn, Zn and Cu. The content of AI, Fe, Mg, Cu and Zo was
found 10 increase in soils with increasing age of the landforms. The Aridisols
developed on older landforms showed a higher concentration of Fe, Al,
Mn, Mg, Cu and Zn in the B horizon of the profiles than A and C horizon,
wheleas these were uniformly distributed in soils developed on Holocene
aged landforms. Correlation matrices revealed a variance control of finer
fraction on the content of Al, Fe, Mg, and K.