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Characteristic of quaternary sedimentation on a shelf of the Laptev Sea according to the molecular composition of n-alkanes |
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| Authors: | A. S. Ulyantsev E. A. Romankevich S. Yu. Bratskaya N. A. Prokuda S. V. Sukhoverkhov I. P. Semiletov V. I. Sergienko |
| Affiliation: | 1.Shirshov Institute of Oceanology,Russian Academy of Science,Moscow,Russia;2.National Research Tomsk Polytechnical University,Tomsk,Russia;3.Institute of Chemistry, Far East Branch,Russian Academy of Science,Vladivostok,Russia;4.Il’ichev Pacific Oceanological Institute, Far East Branch,Russian Academy of Science,Vladivostok,Russia |
| Abstract: | The molecular composition and distribution of the concentration of n-alkanes are considered for sediments of boreholes drilled in the shallow part of the Laptev Sea, in the area of Buor Khaya Gulf. The diverse molecular composition of n-alkanes is dominated by long-chain odd homologs, which indicate terrigenous organic matter (OM). Heterogeneous distribution and burial of OM are shown under conditions of pulsating contribution of river and thermoabrasive material and multiple changes in them up to hiatuses in sedimentation. |
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