Grain size and geochemical dataset of the St. George branch sediments, Danube Delta

The data represents granulometric (Median, Standard deviation, Skewness, textural classes) and geochemical analyses (major, such as CaCO3, TOC, Fe2O3, and minors such as MnO and TiO2), as well as some trace elements with genetic significance (Rb, Sr, Zr) or toxic and potentially affected by anthropic influences (Cu, Pb, Zn, Cd, Cr, V, Ni, Co) from the superficial bed sediments of three successive meanders of the Danube River (St. George distributary).