Melting ice caps trigger changes in tectonic movement through glacial isostatic adjustment
Melting ice caps and glaciers trigger significant crustal motion and land deformation through glacial isostatic adjustment and elastic rebound.
The claim is specific, empirical, and contestable regarding whether melting ice caps drive tectonic or crustal movements via glacial isostatic adjustment (GIA). Multiple retrieved papers (such as [0], [1], [2], [3], [6], [9], [10]) directly support this physical mechanism, demonstrating that surface ice mass loss forces both viscoelastic (GIA) and elastic solid Earth deformation globally and regionally. None of the papers refute this well-established geophysical phenomenon.
J. Wan, N. Gomez, K. Latychev, H. K. Han. Resolving glacial isostatic adjustment (GIA) in response to modern and future ice loss at marine grounding lines in West Antarctica. 2022. https://doi.org/10.5194/tc-16-2203-2022
Paper [0] analyzes glacial isostatic adjustment models in response to modern and future ice loss, emphasizing solid Earth deformation.
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Baojun Zhang, Zemin Wang, Fei Li, J. An, Yuande Yang, Jingbin Liu. Estimation of present-day glacial isostatic adjustment, ice mass change and elastic vertical crustal deformation over the Antarctic ice sheet. 2017. https://doi.org/10.1017/jog.2017.37
Paper [1] explores elastic vertical crustal deformation and glacial isostatic adjustment driven by ice mass changes over Antarctica.
K. Spaans, S. Hreinsdóttir, A. Hooper, B. Ófeigsson. Crustal movements due to Iceland’s shrinking ice caps mimic magma inflow signal at Katla volcano. 2015. https://doi.org/10.1038/srep10285
Paper [2] shows that shrinking ice caps cause surface crustal movements that mimic tectonic and magmatic signals.
M. Willen, M. Horwath, E. Buchta, M. Scheinert, Veit Helm, B. Uebbing, Jürgen Kusche. Globally consistent estimates of high-resolution Antarctic ice mass balance and spatially resolved glacial isostatic adjustment. 2024. https://doi.org/10.5194/tc-18-775-2024
Paper [3] jointly estimates spatially resolved glacial isostatic adjustment alongside Antarctic ice sheet mass balance changes.
S. Coulson, Mila A. Lubeck, J. Mitrovica, E. Powell, James L. Davis, M. Hoggard. The Global Fingerprint of Modern Ice‐Mass Loss on 3‐D Crustal Motion. 2021. https://doi.org/10.1029/2021GL095477
Paper [6] computes global 3-D crustal deformation and motion patterns driven by rapid contemporary ice-mass loss.
B. Lecavalier, Lev Tarasov. A history-matching analysis of the Antarctic Ice Sheet since the last interglacial – Part 2: Glacial isostatic adjustment. 2025. https://doi.org/10.5194/tc-19-6673-2025
Paper [9] models glacial isostatic adjustment and viscoelastic Earth responses to changes in Antarctic ice sheet history.
C. Ludwigsen, O. Andersen, S. Khan, B. Marzeion. Importance of Northern Hemisphere Vertical Land Motion for Geodesy and Coastal Sea Levels. 2020. https://doi.org/10.5194/egusphere-egu2020-19876
Paper [10] details how glacial isostatic adjustment and elastic rebound produce vertical land motion and crustal adjustments in response to ice mass changes.
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