Sources of the Paleomagnetic Signal in Iron-Rich Marine Sedimentary Rocks; Doklady Chemistry; Vol. 486, No. 1

Sources of the Paleomagnetic Signal in Iron-Rich Marine Sedimentary Rocks; Doklady Chemistry; Vol. 486, No. 1

Bibliographic Details
Parent link:Doklady Chemistry
Vol. 486, No. 1.— 2019.— [P. 122-125]
Corporate Author: Национальный исследовательский Томский политехнический университет (ТПУ) Институт природных ресурсов (ИПР) Кафедра геологии и разведки полезных ископаемых (ГРПИ) Международная научно-образовательная лаборатория изучения углерода арктических морей (МНОЛ ИУАМ)
Other Authors: Rudmin M. A. Maksim Andreevich, Mazurov A. K. Aleksey Karpovich, Sergienko V. I. Valentin, Savichev O. G. Oleg Gennadievich, Semiletov I. P. Igor Petrovich
Summary:Title screen
In 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.
Режим доступа: по договору с организацией-держателем ресурса
Language:English
Published: 2019
Subjects:
электронный ресурс
труды учёных ТПУ
сигналы
осадочные породы
железо
месторождения
магнитная восприимчивость
донные отложения
Online Access:https://doi.org/10.1134/S0012500819050021
Format: Electronic Book Chapter
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=664160

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