Climate-controlled submarine landslides on the Antarctic continental margin SCIE SCOPUS

Cited 1 time in WEB OF SCIENCE Cited 4 time in Scopus
Title
Climate-controlled submarine landslides on the Antarctic continental margin
Author(s)
Gales, Jenny A.; McKay, Robert M.; De Santis, Laura; Rebesco, Michele; Laberg, Jan Sverre; Shevenell, Amelia; Harwood, David; Leckie, R. Mark; Kulhanek, Denise K.; King, Maxine; Patterson, Molly; Lucchi, Renata G.; Kim, Sookwan; Kim, Sunghan; Dodd, Justin; Seidenstein, Julia; Prunella, Catherine; Ferrante, Giulia M.
KIOST Author(s)
Kim, Sookwan(김수관)
Alternative Author(s)
김수관
Publication Year
2023-05
Abstract
Antarctica’s continental margins pose an unknown submarine landslide-generated tsunami risk to the Southern Hemisphere populations and infrastructure. Understanding the factors driving slope failure is essential to assessing future geohazards. Here, we present a multidisciplinary study of a major submarine landslide complex along the eastern Ross Sea continental slope (Antarctica) that identifies preconditioning factors and failure mechanisms. Weak layers, identified beneath three submarine landslides, consist of distinct packages of interbedded Miocene- to Pliocene-age diatom oozes and glaciomarine diamicts. The observed lithological differences, which arise from glacial to interglacial variations in biological productivity, ice proximity and ocean circulation, caused changes in sediment deposition that inherently preconditioned slope failure. These recurrent Antarctic submarine landslides were likely triggered by seismicity associated with glacioisostatic readjustment, leading to failure within the preconditioned weak layers. Ongoing climate warming and ice retreat may increase regional glacioisostatic seismicity, triggering Antarctic submarine landslides.
ISSN
2041-1723
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/44254
DOI
10.1038/s41467-023-38240-y
Bibliographic Citation
Nature Communications, v.14, no.1, pp.2714, 2023
Publisher
Nature Publishing Group
Keywords
Geomorphology; Geophysics; Natural hazards; Ocean sciences; Sedimentology
Type
Article
Language
English
Document Type
Article
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