Two facies regions were found in the Kara Sea: Western Kara and Ob-Yen
isei. The first of then includes two types of Upper Quaternary cross-s
ections, and the second one - four types. Differencies between them ar
e caused by sources of sediment matter, distance from them, mixing pro
cesses of fresh and sea water, hydrodynamics of sedimentation environm
ent and sea-bottom topography.