Antarctic Sedimentary Basins and Their Influence on Ice‐Sheet Dynamics

A., A. R.; Li, L.; Kulessa, Bernd; Schroeder, D.; Jordan, T. A.; Whittaker, J. M.; Anandakrishnan, S.; Dawson, E. J.; Wiens, D. A.; Eisen, O.; Siegert, M. J.

doi:10.1029/2021rg000767

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Antarctic Sedimentary Basins and Their Influence on Ice‐Sheet Dynamics

A. R. A. Aitken

, L. Li

, Bernd Kulessa

, D. Schroeder

, T. A. Jordan

, J. M. Whittaker

, S. Anandakrishnan

, E. J. Dawson

, D. A. Wiens

, O. Eisen

, M. J. Siegert

Reviews of Geophysics, Volume: 61, Issue: 3

Swansea University Author: Bernd Kulessa

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DOI (Published version): 10.1029/2021rg000767

Abstract

Knowledge of Antarctica’s sedimentary basins builds our understanding of the coupled evolution of tectonics, ice, ocean, and climate. Sedimentary basins have properties distinct from basement-dominated regions that impact ice-sheet dynamics, potentially influencing future ice-sheet change. Despite t...

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Published in:	Reviews of Geophysics
ISSN:	8755-1209 1944-9208
Published:	American Geophysical Union (AGU) 2023
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URI:	https://cronfa.swan.ac.uk/Record/cronfa64122
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spelling	v2 64122 2023-08-24 Antarctic Sedimentary Basins and Their Influence on Ice‐Sheet Dynamics 52acda616e9f6073cbebf497def874c9 0000-0002-4830-4949 Bernd Kulessa Bernd Kulessa true false 2023-08-24 SGE Knowledge of Antarctica’s sedimentary basins builds our understanding of the coupled evolution of tectonics, ice, ocean, and climate. Sedimentary basins have properties distinct from basement-dominated regions that impact ice-sheet dynamics, potentially influencing future ice-sheet change. Despite their importance, our knowledge of Antarctic sedimentary basins is restricted. Remoteness, the harsh environment, the overlying ice sheet, ice shelves and sea ice all make fieldwork challenging. Nonetheless, in the past decade the geophysics community has made great progress in internationally coordinated data collection and compilation with parallel advances in data processing and analysis supporting a new insight into Antarctica’s subglacial environment. Here, we summarize recent progress in understanding Antarctica’s sedimentary basins. We review advances in the technical capability of radar, potential fields, seismic and electromagnetic techniques to detect and characterize basins beneath ice and advances in integrated multi-data interpretation including machine-learning approaches. These new capabilities permit a continent-wide mapping of Antarctica’s sedimentary basins and their characteristics, aiding definition of the tectonic development of the continent. Crucially, Antarctica’s sedimentary basins interact with the overlying ice sheet through dynamic feedbacks that have the potential to contribute to rapid ice-sheet change. Looking ahead, future research directions include techniques to increase data coverage within logistical constraints, and resolving major knowledge gaps, including insufficient sampling of the ice-sheet bed and poor definition of subglacial basin structure and stratigraphy. Translating the knowledge of sedimentary basin processes into ice-sheet modelling studies is critical to underpin better capacity to predict future change. Journal Article Reviews of Geophysics 61 3 American Geophysical Union (AGU) 8755-1209 1944-9208 Antarctica, sedimentary basins, ice sheet 1 9 2023 2023-09-01 10.1029/2021rg000767 http://dx.doi.org/10.1029/2021rg000767 Commissioned Manuscript COLLEGE NANME Geography COLLEGE CODE SGE Swansea University Another institution paid the OA fee Australian Research Council. Grant Number: SR200100008. China Scholarship Council. Grant Number: 201806170054. NERC, NE/S006621/1, NE/R010838/1, NE/G013071/2, NE/F016646/2. National Science Foundation. Grant Number: DGE-1656518. Open access publishing facilitated by The University of Western Australia. NE/S006621/1, NE/R010838/1, NE/G013071/2, NE/F016646/2 2023-10-02T11:11:52.0737565 2023-08-24T08:23:08.0837867 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Geography A. R. A. Aitken 0000-0002-6375-2504 1 L. Li 0000-0001-6165-2828 2 Bernd Kulessa 0000-0002-4830-4949 3 D. Schroeder 0000-0003-1916-3929 4 T. A. Jordan 0000-0003-2780-1986 5 J. M. Whittaker 0000-0002-3170-3935 6 S. Anandakrishnan 0000-0001-8229-2593 7 E. J. Dawson 0000-0002-2662-3201 8 D. A. Wiens 0000-0002-5169-4386 9 O. Eisen 0000-0002-6380-962x 10 M. J. Siegert 0000-0002-0090-4806 11 64122__28525__0077b671ec5b40f8a8efc59566ed3169.pdf 64122VoR.pdf 2023-09-13T11:38:15.3086435 Output 23860269 application/pdf Version of Record true This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited false eng http://creativecommons.org/licenses/by/4.0/
title	Antarctic Sedimentary Basins and Their Influence on Ice‐Sheet Dynamics
spellingShingle	Antarctic Sedimentary Basins and Their Influence on Ice‐Sheet Dynamics Bernd Kulessa
title_short	Antarctic Sedimentary Basins and Their Influence on Ice‐Sheet Dynamics
title_full	Antarctic Sedimentary Basins and Their Influence on Ice‐Sheet Dynamics
title_fullStr	Antarctic Sedimentary Basins and Their Influence on Ice‐Sheet Dynamics
title_full_unstemmed	Antarctic Sedimentary Basins and Their Influence on Ice‐Sheet Dynamics
title_sort	Antarctic Sedimentary Basins and Their Influence on Ice‐Sheet Dynamics
author_id_str_mv	52acda616e9f6073cbebf497def874c9
author_id_fullname_str_mv	52acda616e9f6073cbebf497def874c9_***_Bernd Kulessa
author	Bernd Kulessa
author2	A. R. A. Aitken L. Li Bernd Kulessa D. Schroeder T. A. Jordan J. M. Whittaker S. Anandakrishnan E. J. Dawson D. A. Wiens O. Eisen M. J. Siegert
format	Journal article
container_title	Reviews of Geophysics
container_volume	61
container_issue	3
publishDate	2023
institution	Swansea University
issn	8755-1209 1944-9208
doi_str_mv	10.1029/2021rg000767
publisher	American Geophysical Union (AGU)
college_str	Faculty of Science and Engineering
hierarchytype
hierarchy_top_id	facultyofscienceandengineering
hierarchy_top_title	Faculty of Science and Engineering
hierarchy_parent_id	facultyofscienceandengineering
hierarchy_parent_title	Faculty of Science and Engineering
department_str	School of Biosciences, Geography and Physics - Geography{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Biosciences, Geography and Physics - Geography
url	http://dx.doi.org/10.1029/2021rg000767
document_store_str	1
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description	Knowledge of Antarctica’s sedimentary basins builds our understanding of the coupled evolution of tectonics, ice, ocean, and climate. Sedimentary basins have properties distinct from basement-dominated regions that impact ice-sheet dynamics, potentially influencing future ice-sheet change. Despite their importance, our knowledge of Antarctic sedimentary basins is restricted. Remoteness, the harsh environment, the overlying ice sheet, ice shelves and sea ice all make fieldwork challenging. Nonetheless, in the past decade the geophysics community has made great progress in internationally coordinated data collection and compilation with parallel advances in data processing and analysis supporting a new insight into Antarctica’s subglacial environment. Here, we summarize recent progress in understanding Antarctica’s sedimentary basins. We review advances in the technical capability of radar, potential fields, seismic and electromagnetic techniques to detect and characterize basins beneath ice and advances in integrated multi-data interpretation including machine-learning approaches. These new capabilities permit a continent-wide mapping of Antarctica’s sedimentary basins and their characteristics, aiding definition of the tectonic development of the continent. Crucially, Antarctica’s sedimentary basins interact with the overlying ice sheet through dynamic feedbacks that have the potential to contribute to rapid ice-sheet change. Looking ahead, future research directions include techniques to increase data coverage within logistical constraints, and resolving major knowledge gaps, including insufficient sampling of the ice-sheet bed and poor definition of subglacial basin structure and stratigraphy. Translating the knowledge of sedimentary basin processes into ice-sheet modelling studies is critical to underpin better capacity to predict future change.
published_date	2023-09-01T11:11:55Z
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Antarctic Sedimentary Basins and Their Influence on Ice‐Sheet Dynamics

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