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090 | _a662962 | ||
100 | _a20210115a2020 k y0engy50 ba | ||
101 | 0 | _aeng | |
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200 | 1 |
_aGeochemical and mineralogical features of the substrates of the Vasyugan Mire, Western Siberia, Russia _fM. A. Rudmin, M. J. Uilson (Vilson), L. Wilson [et al.] |
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203 |
_aText _celectronic |
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300 | _aTitle screen | ||
330 | _aThis paper is devoted to a study of the nature and origin of the mineral matter in the Vasyugan Mire in Western Siberia. Based on mineralogical and geochemical analyses, new results were obtained concerning the mineral composition within the bottom part of the peat deposit for different landscape zones in the Vasyugan Mire. This part of the peat deposit represents a transition sequence from peat through organo-mineral sediments (OMS) to basal loams and is characterized by a gradient change in the physicochemical and environmental conditions with depth. In the same sequence, pH and peat ash yield increase, while moisture decreases. The clay minerals identified in the basal layers of the mire, consisting of loam, OMS and peat, include illite, chlorite, kaolinite and smectite. All these clay minerals found in the OMS and peat layers are believed to have been inherited with little change from the underlying loam layer during the initial transient stage of mire development. That this is indeed the case is strongly suggested by the extraordinary correspondence in the mean content of over 40 trace elements between the OMS and loam layers. In the overlying peat layer, however, some elements, including U, W, Sb, Sn, Mo, Zn, Cd, Nb, Ta, Br and B, are present in higher concentrations than in the OMS and loam. Scanning electron microscope observations suggest that this can be at least partly accounted for by the precipitation of sulfide phases in the strongly reducing and acidic environment of the peat, although whether by inorganic or microbial processes is unknown. The age of the Vasyugan Mire within the Holocene succession is discussed and it is concluded that it developed either during the Atlantic Period (8 ka–6 ka BP) or during the upper part of the Sub-Boreal Period (4 ka BP). | ||
333 | _aРежим доступа: по договору с организацией-держателем ресурса | ||
461 | _tCatena | ||
463 |
_tVol. 194 _v[104781, 12 p.] _d2020 |
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610 | 1 | _aэлектронный ресурс | |
610 | 1 | _aтруды учёных ТПУ | |
610 | 1 | _apeat | |
610 | 1 | _aclay minerals | |
610 | 1 | _abasal loam | |
610 | 1 | _aorgano-mineral sediments | |
610 | 1 | _ageochemistry | |
610 | 1 | _aторф | |
610 | 1 | _aминералы | |
610 | 1 | _aглины | |
610 | 1 | _aбазальные отложения | |
610 | 1 | _aоргано-минеральные удобрения | |
610 | 1 | _aгеохимия | |
701 | 1 |
_aRudmin _bM. A. _cgeologist _cEngineer-researcher of Tomsk Polytechnic University _f1989- _gMaksim Andreevich _2stltpush _3(RuTPU)RU\TPU\pers\33254 |
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701 | 1 |
_aUilson (Vilson) _bM. J. _gMichael Jeffrey |
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701 | 1 |
_aWilson _bL. |
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701 | 1 |
_aSavichev _bO. G. _cgeologist _cProfessor of Tomsk Polytechnic University, doctor of geographical sciences _f1967- _gOleg Gennadievich _2stltpush _3(RuTPU)RU\TPU\pers\34024 |
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701 | 1 |
_aYakich _bT. Yu. _cgeologist _cAssociate Professor of Tomsk Polytechnic University, Candidate of geological and mineralogical sciences _f1984- _gTamara Yurievna _2stltpush _3(RuTPU)RU\TPU\pers\43279 |
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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 |
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701 | 1 |
_aRuban _bA. S. _cgeologist _cengineer of Tomsk Polytechnic University _f1991- _gAleksey Sergeevich _2stltpush _3(RuTPU)RU\TPU\pers\34023 |
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701 | 1 |
_aTabakaev _bR. B. _cspecialist in the field of heat and power engineering _cEngineer of Tomsk Polytechnic University, Postgraduate _f1986- _gRoman Borisovich _2stltpush _3(RuTPU)RU\TPU\pers\32988 |
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701 | 1 |
_aIbraeva _bK. T. _cspecialist in power engineering _cResearch Engineer of Tomsk Polytechnic University _f1993- _gKanipa Talgatovna _2stltpush _3(RuTPU)RU\TPU\pers\46298 |
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701 | 1 |
_aMazurov _bA. K. _cgeologist _cProfessor of Tomsk Polytechnic University, Doctor sciences _f1951- _gAleksey Karpovich _2stltpush _3(RuTPU)RU\TPU\pers\30165 |
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712 | 0 | 2 |
_aНациональный исследовательский Томский политехнический университет _bИнженерная школа природных ресурсов _bОтделение геологии _h8083 _2stltpush _3(RuTPU)RU\TPU\col\23542 |
712 | 0 | 2 |
_aНациональный исследовательский Томский политехнический университет _bИнженерная школа энергетики _bНаучно-образовательный центр И. Н. Бутакова (НОЦ И. Н. Бутакова) _h8025 _2stltpush _3(RuTPU)RU\TPU\col\23504 |
801 | 2 |
_aRU _b63413507 _c20210115 _gRCR |
|
856 | 4 | _uhttps://doi.org/10.1016/j.catena.2020.104781 | |
942 | _cCF |