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100 _a20210330a2019 k y0engy50 ba
101 0 _aeng
102 _aUS
135 _adrcn ---uucaa
181 0 _ai
182 0 _ab
200 1 _aSources of the Paleomagnetic Signal in Iron-Rich Marine Sedimentary Rocks
_fM. A. Rudmin, A. K. Mazurov, V. I. Sergienko [et al.]
203 _aText
_celectronic
300 _aTitle screen
320 _a[References: p. 125 (10 tit.)]
330 _aIn this work, the results of interpreting the variation of the magnetic signal of iron-rich marine sedimentary rocks were presented by the example of the Cretaceous-Paleogene section of the Bakchar iron ore deposit (Western Siberia). The anomalous values of the magnetic susceptibility are determined by two factors: first, a superimposed diagenetic process accompanied by the formation of pyrrhotite, greigite, and siderite among ooidal ironstones; and second, an increase in the continental runoff, causing the accumulation of terrigenous magnetite and ilmenite in the siltstone as the climate becomes increasingly humid and the weathering intensifies. It was shown that the elevated values of the magnetic susceptibility in iron-rich deposits can be due to the formation of ferrimagnetic iron sulfides, which is indicative of methane mobilization through ancient bottom sediments.
333 _aРежим доступа: по договору с организацией-держателем ресурса
461 _tDoklady Chemistry
463 _tVol. 486, No. 1
_v[P. 122-125]
_d2019
610 1 _aэлектронный ресурс
610 1 _aтруды учёных ТПУ
610 1 _aсигналы
610 1 _aосадочные породы
610 1 _aжелезо
610 1 _aместорождения
610 1 _aмагнитная восприимчивость
610 1 _aдонные отложения
701 1 _aRudmin
_bM. A.
_cgeologist
_cEngineer-researcher of Tomsk Polytechnic University
_f1989-
_gMaksim Andreevich
_2stltpush
_3(RuTPU)RU\TPU\pers\33254
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 _aSergienko
_bV. I.
_gValentin
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 _aSemiletov
_bI. P.
_cgeographer
_cProfessor of Tomsk Polytechnic University, doctor of geographical Sciences
_f1955-
_gIgor Petrovich
_2stltpush
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712 0 2 _aНациональный исследовательский Томский политехнический университет (ТПУ)
_bИнститут природных ресурсов (ИПР)
_bКафедра геологии и разведки полезных ископаемых (ГРПИ)
_bМеждународная научно-образовательная лаборатория изучения углерода арктических морей (МНОЛ ИУАМ)
_h7398
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801 2 _aRU
_b63413507
_c20210330
_gRCR
856 4 _uhttps://doi.org/10.1134/S0012500819050021
942 _cCF