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Solid Earth An interactive open-access journal of the European Geosciences Union
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Short summary
We propose a new exploration of the concept of spontaneous lithospheric collapse at a transform fault (TF) by performing a large study of conditions allowing instability of the thicker plate using 2-D thermomechanical simulations. Spontaneous subduction is modelled only if extreme mechanical conditions are assumed. We conclude that spontaneous collapse of the thick older plate at a TF evolving into mature subduction is an unlikely process of subduction initiation at modern Earth conditions.
SE | Articles | Volume 11, issue 1
Solid Earth, 11, 37–62, 2020
https://doi.org/10.5194/se-11-37-2020
Solid Earth, 11, 37–62, 2020
https://doi.org/10.5194/se-11-37-2020

Research article 08 Jan 2020

Research article | 08 Jan 2020

Can subduction initiation at a transform fault be spontaneous?

Diane Arcay et al.

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Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by Svenja Lange on behalf of the Authors (17 Sep 2019)  Author's response    Manuscript
ED: Referee Nomination & Report Request started (18 Sep 2019) by Susanne Buiter
RR by Anonymous Referee #2 (08 Nov 2019)
ED: Publish subject to minor revisions (review by editor) (10 Nov 2019) by Susanne Buiter
AR by Diane Arcay on behalf of the Authors (14 Nov 2019)  Author's response    Manuscript
ED: Publish subject to technical corrections (23 Nov 2019) by Susanne Buiter
ED: Publish subject to technical corrections (23 Nov 2019) by Susanne Buiter(Executive Editor)
AR by Diane Arcay on behalf of the Authors (25 Nov 2019)  Author's response    Manuscript
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Short summary
We propose a new exploration of the concept of spontaneous lithospheric collapse at a transform fault (TF) by performing a large study of conditions allowing instability of the thicker plate using 2-D thermomechanical simulations. Spontaneous subduction is modelled only if extreme mechanical conditions are assumed. We conclude that spontaneous collapse of the thick older plate at a TF evolving into mature subduction is an unlikely process of subduction initiation at modern Earth conditions.
Citation