How Do Passive Margins Convert to Active Margins?

Abstract There has been a long debate about how passive (Atlantic‐type) margins can convert to active (Andean) margins, particularly if they can do so directly, or some other process such as an arc‐continent collision must intervene (Burke et al., 1984; Dewey, 1969, https://doi.org/10.1016/0012‐821x...

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Main Authors: Timothy M. Kusky, Junpeng Wang
Format: Article
Language:English
Published: Wiley 2025-05-01
Series:Geochemistry, Geophysics, Geosystems
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Online Access:https://doi.org/10.1029/2025GC012394
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author Timothy M. Kusky
Junpeng Wang
author_facet Timothy M. Kusky
Junpeng Wang
author_sort Timothy M. Kusky
collection DOAJ
description Abstract There has been a long debate about how passive (Atlantic‐type) margins can convert to active (Andean) margins, particularly if they can do so directly, or some other process such as an arc‐continent collision must intervene (Burke et al., 1984; Dewey, 1969, https://doi.org/10.1016/0012‐821x(69)90089‐2; Kusky & Kidd, 1985). Most numerical models have long‐suggested that only very young passive margins can be sites of subduction initiation since old margins become stronger as they cool and develop thick sedimentary piles during thermal subsidence (e.g., Cloetingh et al., 1982, https://doi.org/10.1038/297139a0, 1989, https://doi.org/10.1007/bf00874622; 1996; Zhong & Li, 2019, https://doi.org/10.1029/2019gl084022), whereas other analog and numerical models have suggested that old passive margins may spontaneously convert to subduction zones (e.g., Bercovici & Mulyukova, 2021, https://doi.org/10.1073/pnas.2011247118; Faccenna et al., 1999, https://doi.org/10.1029/1998jb900072; Nikolaeva et al., 2010, https://doi.org/10.1029/2009jb00654; Stern & Gerya, 2018, https://doi.org/10.1016/j.tecto.2017.10.014; Zhang et al., 2023, https://doi.org/10.1029/2023gl103553).
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spelling doaj-art-7be197c6a9204a5fb61d9845b0e4e8b92025-08-20T02:23:47ZengWileyGeochemistry, Geophysics, Geosystems1525-20272025-05-01265n/an/a10.1029/2025GC012394How Do Passive Margins Convert to Active Margins?Timothy M. Kusky0Junpeng Wang1State Key Lab for Geological Processes and Mineral Resources, and Center for Global Tectonics School of Earth Sciences China University of Geosciences Wuhan ChinaState Key Lab for Geological Processes and Mineral Resources, and Center for Global Tectonics School of Earth Sciences China University of Geosciences Wuhan ChinaAbstract There has been a long debate about how passive (Atlantic‐type) margins can convert to active (Andean) margins, particularly if they can do so directly, or some other process such as an arc‐continent collision must intervene (Burke et al., 1984; Dewey, 1969, https://doi.org/10.1016/0012‐821x(69)90089‐2; Kusky & Kidd, 1985). Most numerical models have long‐suggested that only very young passive margins can be sites of subduction initiation since old margins become stronger as they cool and develop thick sedimentary piles during thermal subsidence (e.g., Cloetingh et al., 1982, https://doi.org/10.1038/297139a0, 1989, https://doi.org/10.1007/bf00874622; 1996; Zhong & Li, 2019, https://doi.org/10.1029/2019gl084022), whereas other analog and numerical models have suggested that old passive margins may spontaneously convert to subduction zones (e.g., Bercovici & Mulyukova, 2021, https://doi.org/10.1073/pnas.2011247118; Faccenna et al., 1999, https://doi.org/10.1029/1998jb900072; Nikolaeva et al., 2010, https://doi.org/10.1029/2009jb00654; Stern & Gerya, 2018, https://doi.org/10.1016/j.tecto.2017.10.014; Zhang et al., 2023, https://doi.org/10.1029/2023gl103553).https://doi.org/10.1029/2025GC012394passive marginsubduction polarity reversal
spellingShingle Timothy M. Kusky
Junpeng Wang
How Do Passive Margins Convert to Active Margins?
Geochemistry, Geophysics, Geosystems
passive margin
subduction polarity reversal
title How Do Passive Margins Convert to Active Margins?
title_full How Do Passive Margins Convert to Active Margins?
title_fullStr How Do Passive Margins Convert to Active Margins?
title_full_unstemmed How Do Passive Margins Convert to Active Margins?
title_short How Do Passive Margins Convert to Active Margins?
title_sort how do passive margins convert to active margins
topic passive margin
subduction polarity reversal
url https://doi.org/10.1029/2025GC012394
work_keys_str_mv AT timothymkusky howdopassivemarginsconverttoactivemargins
AT junpengwang howdopassivemarginsconverttoactivemargins