Distribution and partition of heavy metals (Cr, Co, Cu, Ni, Pb and Zn) in four forest soil profiles characterized by different parent materials and similar pedogenic processes were studied to distinguish the inherited characteristics from those caused by pedogenic processes in soils at natural background level of these metals. Distributions of total heavy metal amounts are determined mostly by the parent material, while the repartition of heavy metals among the soil components is regulated mainly by pedogenic effects. Heavy metals bound to residual phases are almost solely inherited from the parent material. Combined effects are the clay illuviation with different clay mineralogy due to the differences in parent material, as well as the calcareous subsoil resulting from inheritance and secondary carbonate precipitation. In the studied samples the organic matter plays the most decisive role in binding heavy metals. A significant proportion of lead is bound to it, but it also has an effect on copper and nickel repartition. Cobalt exhibits high affinity to Fe and Mn oxides, which is also characteristic of lead and zinc. The slight accumulation of zinc in the B horizon of soils suggests its relation to clay minerals.
Authors:Máté Zsigmond Leskó, Richárd Zoltán Papp, Boglárka Anna Topa, Ferenc Kristály, Tamás Vigh, and Norbert Zajzon
enrichment of hydrothermal trace elements such as cobalt) and our new data. We assume that the ore accumulation was controlled by a complex flow system (upwelling-controlled ore formation).
This work was