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200 1 _aCharacterization of Organic Matter of the Laptev Sea Eroded Coastal Sediments: A Case Study from the Cape Muostakh, Bykovsky Peninsula
_fA. A. Grinko, I. V. Goncharov, N. V. Oblasov [et al.]
203 _aText
_celectronic
300 _aTitle screen
320 _a[References: 78 tit.]
330 _aThe article provides new data about characteristics of the organic matter and mineralogical composition of the Cape Muostakh sediments related to intense permafrost degradation (thermoerosion processes). The sedimentary material has been investigated by X-ray diffraction, GC-MS, IRM-GC-MS, pyrolysis–gas chromatography–mass spectrometry (Py–GC–MS), and Rock-Eval pyrolysis. Variable distribution of the total organic carbon content over the coast cliff is established. The minimum content of the organic carbon occurs at the cliff level of 5 m above sea level, and the maximum is located on the top of the cape cliff. The practical absence of unsaturated compounds indicates the intense destruction of the ice complex deposits that occurred at the level of 5 m of the Cape Muostakh cliff. The minimum organic carbon, aliphatic compounds, and the increase of the ?13C indicates the loss of hydrogen-enriched organic matter, while condensed carbon structures remain in sediment. Aromatic compounds of both plant and petroleum origin were identified in all sediments, except in the sediment sample collected at the cliff level of 5 m. Unsaturated fatty acids were detected only in the sediments of the upper cliff levels. The novel hopenes and hopane were detected and they predominantly occur in the upper layers of the cape cliff.
461 _tGeosciences
463 _tVol. 11, iss. 2
_v[83, 27 p.]
_d2021
610 1 _aэлектронный ресурс
610 1 _aтруды учёных ТПУ
610 1 _aLaptev Sea
610 1 _aCape Muostakh
610 1 _aYedoma
610 1 _aerosion
610 1 _athermoabrasion
610 1 _aorganic matter
610 1 _aморе Лаптевых
610 1 _aедома
610 1 _aэрозия
610 1 _aтермоабразия
610 1 _aорганические материалы
701 1 _aGrinko
_bA. A.
_cgeochemist
_cresearch engineer of Tomsk Polytechnic University, candidate of chemical sciences
_f1986-
_gAndrey Alekseevich
_2stltpush
_3(RuTPU)RU\TPU\pers\36888
701 1 _aGoncharov
_bI. V.
_cgeologist
_cprofessor of Tomsk polytechnic university (TPU), doctor of geological and mineralogical sciences (DSc)
_f1947-
_gIvan Vasilyevich
_2stltpush
_3(RuTPU)RU\TPU\pers\30093
701 1 _aOblasov
_bN. V.
_cgeologist
_clead engineer of Tomsk Polytechnic University, Candidate of geological and mineralogical sciences
_f1981-
_gNikolay Vladimirovich
_2stltpush
_3(RuTPU)RU\TPU\pers\34011
701 1 _aGershelis
_bE. V.
_cGeologist
_cexpert of Tomsk Polytechnic University
_f1992-
_gElena Vladimirovna
_2stltpush
_3(RuTPU)RU\TPU\pers\42381
701 1 _aShaldybin
_bM. V.
_cgeologist
_cAssociate Professor of Tomsk Polytechnic University, Candidate of geological and mineralogical sciences
_f1969-
_gMikhail Viktorovich
_2stltpush
_3(RuTPU)RU\TPU\pers\37010
701 1 _aShakhova
_bN. E.
_cgeologist
_cProfessor of Tomsk Polytechnic University, doctor of geological-mineralogical Sciences
_f1959-
_gNataljya Evgenjevna
_2stltpush
_3(RuTPU)RU\TPU\pers\35374
701 1 _aZarubin
_bA. G.
_cspecialist in oil field equipment
_cAssociate Professor of Tomsk Polytechnic University, candidate of chemical sciences
_f1978-
_gAleksey Gennadievich
_2stltpush
_3(RuTPU)RU\TPU\pers\33282
701 1 _aRuban
_bA. S.
_cgeologist
_cengineer of Tomsk Polytechnic University
_f1991-
_gAleksey Sergeevich
_2stltpush
_3(RuTPU)RU\TPU\pers\34023
701 1 _aDubaev
_bO. V.
_gOleg Viktorovich
701 1 _aVeklich
_bM. A.
_gMaksim Aleksandrovich
701 1 _aMazurov
_bA. K.
_cgeologist
_cProfessor of Tomsk Polytechnic University, Doctor sciences
_f1951-
_gAleksey Karpovich
_2stltpush
_3(RuTPU)RU\TPU\pers\30165
701 1 _aSemiletov
_bI. P.
_cgeographer
_cProfessor of Tomsk Polytechnic University, doctor of geographical Sciences
_f1955-
_gIgor Petrovich
_2stltpush
_3(RuTPU)RU\TPU\pers\34220
712 0 2 _aНациональный исследовательский Томский политехнический университет
_bИнженерная школа природных ресурсов
_bОтделение геологии
_h8083
_2stltpush
_3(RuTPU)RU\TPU\col\23542
801 2 _aRU
_b63413507
_c20210412
_gRCR
856 4 _uhttps://doi.org/10.3390/geosciences11020083
942 _cCF