| 000 | 05431nlm1a2200613 4500 | ||
|---|---|---|---|
| 001 | 662361 | ||
| 005 | 20231030041818.0 | ||
| 035 | _a(RuTPU)RU\TPU\network\33498 | ||
| 035 | _aRU\TPU\network\22490 | ||
| 090 | _a662361 | ||
| 100 | _a20200724a2020 k y0engy50 ba | ||
| 101 | 0 | _aeng | |
| 102 | _aRU | ||
| 135 | _adrcn ---uucaa | ||
| 181 | 0 | _ai | |
| 182 | 0 | _ab | |
| 200 | 1 |
_aOrganic matter of sediments in areas of intense methane release in the Laptev Sea: molecular-composition specifics _fA. A. Grinko, I. V. Goncharov, N. E. Shakhova [et al.] |
|
| 203 |
_aText _celectronic |
||
| 300 | _aTitle screen | ||
| 330 | _aWe present results of study of the molecular composition of organic matter (OM) in the bottom sediments of the Laptev Sea by gas chromatography-mass spectrometry, isotope gas chromatography-mass spectrometry, and Rock-Eval pyrolytic analysis. The OM of all collected sediment samples shows a significant terrigenous contribution. Compounds that are biomarkers of methanotrophic microorganisms are also found. A positive correlation between the contents of the studied biomarkers and the contents of pelite and total organic carbon is observed at the sites with documented intense methane bubbling. For example, the average content of C30 hopenes at the “methane” stations is twice higher than that at the “background” ones. The average content of C32 ??-hopanes in sediment samples from the methane seepage area is 1.5 times higher than that at the background stations. We suggest that the increased C30 ??-hopane content (~1.5 times higher within the methane seepage area) and the decreased moretane index relative to the C31 hopane index are due to the inflow of OM of petroleum origin. The presence of biphenyl in sediments indicates its petroleum origin, which supports our assumption of the migratory nature of petroleum hydrocarbons in the methane seepage area. Triterpenoids found in the sediment OM indicate diagenetic bacterial transformation of OM in the methane seepage areas, which shows that methane has been released for a long time. We assume the intense activity of the consortium of methanotrophs and sulfate reducers in the methane seepage areas. | ||
| 333 | _aРежим доступа: по договору с организацией-держателем ресурса | ||
| 461 | _tRussian Geology and Geophysics | ||
| 463 |
_tVol. 61, № 4 _v[P. 456-477] _d2020 |
||
| 610 | 1 | _aэлектронный ресурс | |
| 610 | 1 | _aтруды учёных ТПУ | |
| 610 | 1 | _amethane emissions | |
| 610 | 1 | _aorganic matter | |
| 610 | 1 | _abottom sediments | |
| 610 | 1 | _ahopanoids | |
| 610 | 1 | _amethanotrophs | |
| 610 | 1 | _aArctic | |
| 610 | 1 | _aLaptev Sea | |
| 610 | 1 | _aвыбросы | |
| 610 | 1 | _aметан | |
| 610 | 1 | _aдонные отложения | |
| 610 | 1 | _aАрктика | |
| 610 | 1 | _aморе Лаптевых | |
| 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 |
_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 |
_aGustafsson _bO. _gOrjan |
|
| 701 | 1 |
_aRomankevich _bE. A. _gEvgeny Aleksandrovich |
|
| 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 |
_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 |
_aKashapov _bR. S. _cgeologist _cResearch Engineer, Tomsk Polytechnic University _f1985- _gRoman Sergeevich _2stltpush _3(RuTPU)RU\TPU\pers\46485 |
|
| 701 | 1 |
_aGershelis _bE. V. _cGeologist _cexpert of Tomsk Polytechnic University _f1992- _gElena Vladimirovna _2stltpush _3(RuTPU)RU\TPU\pers\42381 |
|
| 701 | 1 |
_aDudarev _bO. V. _cgeologist _cresearcher of Tomsk Polytechnic University, candidate of geological and mineralogical Sciences _f1955- _gOleg Viktorovich _2stltpush _3(RuTPU)RU\TPU\pers\35379 |
|
| 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 |
|
| 701 | 1 |
_aChernykh _bD. V. _cgeologist _cengineer at Tomsk Polytechnic University, candidate of technical Sciences _f1988- _gDenis Vyacheslavovich _2stltpush _3(RuTPU)RU\TPU\pers\35528 |
|
| 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 _c20200724 _gRCR |
|
| 856 | 4 | _uhttp://dx.doi.org/10.15372/RGG2019150 | |
| 942 | _cCF | ||