Sedimentation in the Central Arctic Submarine Elevations: Results of Comprehensive Analysis of Paleomagnetic and Seismoacoustic Data

— The age assignment to the Arctic Basin sediments is complicated by the insufficient microfauna in them. Under these conditions, the paleomagnetic method is the major method to determine age boundaries. This method was used to construct the first successful age model of Arctic sediments in the 1970...

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Bibliographic Details
Published in:Geotectonics 2023-12, Vol.57 (Suppl 1), p.S100-S111
Main Authors: Elkina, D. V., Piskarev, A. L., Bezumov, D. V.
Format: Article
Language:English
Subjects:
Age
Cores
Earth and Environmental Science
Earth Sciences
Magnetization
Microfauna
Miocene
Palaeomagnetism
Paleomagnetism
Remanent magnetization
Ridges
Sediment
Sedimentation
Sedimentation & deposition
Sedimentation rates
Sediments
Structural Geology
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Summary:— The age assignment to the Arctic Basin sediments is complicated by the insufficient microfauna in them. Under these conditions, the paleomagnetic method is the major method to determine age boundaries. This method was used to construct the first successful age model of Arctic sediments in the 1970s. In recent decades, a number of works made it possible to describe changes in natural remanent magnetization direction as a consequence of secondary geochemical processes, in fact, discrediting the possibility of applying paleomagnetism to the Arctic Basin sediments. Based on our research of natural remanent magnetization in sediment cores from the Central Arctic submarine elevations, the reference paleomagnetic horizons were determined reliably. The sedimentation rates at the Alpha and Mendeleev ridges was calculated to be low (
ISSN:0016-8521
1556-1976
DOI:10.1134/S0016852123070063