Composition of recent bottom sediments of the Chukchi Sea. Results of an integrated sedimentological research

  • Vologina E.G. 1
  • Sturm M. 2
  • Astakhov A.S. 3
  • Kulagina N.V. 1
  • Bosin A.A. 3
  • Kolesnik A.N. 3
  • 1 Institute of the Earth’s Crust, Siberian Branch, Russian Academy of Sciences, ul. Lermontova 128, Irkutsk, 664033 Russia
    2 Swiss Federal Institute of Aquatic Science and Technology, CH-8600 Dubendorf, Switzerland
    3 Il’ichev Pacific Oceanological Institute, Far East Branch, Russian Academy of Sciences, ul. Baltiiskaya 43, Vladivostok, 690041 Russia
Keywords: Chukchi Sea, bottom sediments, recent sedimentation rates, grain size, biogenic components


Results of high-resolution research of recent bottom sediments from south, central and north Chukchi Sea reveal striking data on environmental changes during the last decades. The composition of surface sediments from the Arctic Sea gives evidence of the decrease of ice cover and an increase of biogenic elements, caused by higher bioproductivity.