In this graduate thesis, granulometric and geochemical characteristics of three shallow core, depths of about 10 m, in the area of the Neretva River Delta have been determined. The aim of the research is to determine the natural (background) concentration of certain elements in the delta sediment and whether there is anthropogenic contribution to their concentrations. The results of granulometric analysis indicate the dominance of the silt fraction and the low representation of the gravel fraction. The main source of trace elements is the particles generated by the consumption of magmatic, metamorphic and sedimentary rocks through which the river Neretva runs. Strong positive correlations of Al with Fe and trace elements point to the connection of those elements with clay. Therefore, clay has a major role in the transfer of trace elements. Conversely, the strong negative correlation of Al with Ca, Mg and Sr, and the positive correlation of Ca and Mg show the connection of those carbonate elements. In the sediment of the analyzed cores, low concentrations of Al and Fe were observed in the same depths as the high carbonate and Ca content, and vice versa, suggesting a change in the period dominated by the deposition of carbonate and the dominant sedimentation of terigene material. Concentrations of core elements are within the background concentration, and no anthropogenic influence is noticed.