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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.]
203 _aText
_celectronic
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
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
701 1 _aUilson (Vilson)
_bM. J.
_gMichael Jeffrey
701 1 _aWilson
_bL.
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
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
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 _aRuban
_bA. S.
_cgeologist
_cengineer of Tomsk Polytechnic University
_f1991-
_gAleksey Sergeevich
_2stltpush
_3(RuTPU)RU\TPU\pers\34023
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
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
701 1 _aMazurov
_bA. K.
_cgeologist
_cProfessor of Tomsk Polytechnic University, Doctor sciences
_f1951-
_gAleksey Karpovich
_2stltpush
_3(RuTPU)RU\TPU\pers\30165
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