Vertical Distribution of Some Selected Major, Minor and Rare Earth Elements of The Soils Developed on Limestone in Semi Arid Region

Authors : Cihan UZUN, Hasan Hüseyin ÖZAYTEKİN

Pages : 72-83

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Publication Date : 2007-08-25

Article Type : Research Paper

Abstract :In this research the concentrations and vertical distribution of 42 elements in five soil profiles developed on lime stone in semiarid region were investigated. Some physical, chemical and morphological properties were also determined Most of the elements were determined to be very little or trace amount in parent material and the most of elements have shown little enrichment and depletion, indicating a low degree of weathering. It was found that decalcification in profiles 1. 2., 3. and 5. is moderate while decalcification in profile 4 is low. Although mobile elements of Na, Sr, Ca, Mg were enriched in surface hori-zons because of biocycling and leaching at the weathering processes, some monovalant insert ignore into journalissuearticles values(Rb, K);, divalant insert ignore into journalissuearticles values(Zn, Pb, Co ); and trivalent, tetravalent, pentavalant cations such as Ga, V, Zr, U, Th, Ti, Nb and rare earth elements insert ignore into journalissuearticles values( La, Ce, Pe, Nd, Sr, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu ); were accumulated in subsurface horizons and enriched especially in clay fraction because of their relations with clay and Fe-oxide minerals.
Keywords : Majör, Minör, Nadir Toprak Elementleri, Dikey Dağılım, Toprak Oluşumu