Characterization of organic matter in bottom sediments of Ivashkina Lagoon, Laptev Sea

Elena Gershelis, Ivan Goncharov, Oleg Dudarev, Alexey Ruban, Igor Semiletov

Research output: Contribution to journalConference articlepeer-review


Here we present lithological and geochemical characteristics of the core drilled in coastal part of the Laptev Sea (Ivashkina Lagoon, Bykovsky Peninsula). It is shown that for sediments accumulated in specific lagoon conditions the increased content of organic carbon is confined to fine-grained lacustrine and lagoonal sediments in the uppermost layers. Pyrolytic analysis results indicate a sharp variability in the content of total organic carbon and volatile organic compounds across the studied horizons. The distribution of n-alkanes is characterized by the dominance of high molecular weight homologues, which indicates the ubiquitous contribution of higher terrestrial vegetation discharged with river and coastal thermo abrasion fluxes to the organic matter of bottom sediments.

Original languageEnglish
Article number06006
JournalE3S Web of Conferences
Publication statusPublished - 7 Jun 2019
Event16th International Symposium on Water-Rock Interaction, WRI 2019 and 13th International Symposium on Applied Isotope Geochemistry, 1st IAGC International Conference - Tomsk, Russian Federation
Duration: 21 Jul 201926 Jul 2019

ASJC Scopus subject areas

  • Environmental Science(all)
  • Energy(all)
  • Earth and Planetary Sciences(all)

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