Assessment of the ecological and geochemical conditions in surface sediments of the Varzob river, Tajikistan

The aims of present study consist of collecting more information on the geochemistry of the Varzob river unconsolidated sediments as reflecting the diversity of the South-Hissar range together with a comprehensive evaluation of the anthropogenic contamination of the same sediments. Accordingly, the content of nine major, rock forming elements - Na, Mg, Al, Si, K, Ca, Ti, Mn and Fe as well as of other 27 trace ones - Sc, V, Cr, Co, Ni, Zn, As,...