Cherkashin V.I., Matsapulin V.U., Yusupov A.R.

Institute of Geology, Dagestan Scientific Center of RAS E-mail: dangeo@mail.ru

The article is dedicated to the studies of a heavy fraction of sediments (alluvial, diluvial) deposits of Uluchay, Gazikumukh Koysu and Usukhchay rivers. First two rivers are located within the area supplied from the northern provenance, and the last one is situated in Major Caucasus range affected by sediment supply from the northern provenance. The different composition of heavy fraction in both southern and northern Paleozoic lands, which used to be  the sources of terrigenous material goverened the formation of placer deposits in the Mesozoic-Cenozoic Series.

Keywords: Major Caucasus, Meso-Cenozoic,  geosynclinal basin, alluvial deposits, heavy fraction, nourishing province