Articles | Volume 16, issue 4/5
https://doi.org/10.5194/se-16-297-2025
https://doi.org/10.5194/se-16-297-2025
Research article
 | 
14 May 2025
Research article |  | 14 May 2025

On the global geodynamic consequences of different phase boundary morphologies

Gwynfor T. Morgan, J. Huw Davies, Robert Myhill, and James Panton

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Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on egusphere-2024-3496', Anonymous Referee #1, 23 Dec 2024
    • AC1: 'Reply on RC1', Gwynfor Morgan, 17 Feb 2025
  • RC2: 'Comment on egusphere-2024-3496', Scott King, 14 Jan 2025
    • AC2: 'Reply on RC2', Gwynfor Morgan, 17 Feb 2025
  • EC1: 'Comment on egusphere-2024-3496', Philip Heron, 18 Jan 2025

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision | EF: Editorial file upload
AR by Gwynfor Morgan on behalf of the Authors (17 Feb 2025)  Author's response   Author's tracked changes   Manuscript 
ED: Referee Nomination & Report Request started (20 Feb 2025) by Philip Heron
RR by Anonymous Referee #1 (25 Feb 2025)
RR by Anonymous Referee #2 (01 Mar 2025)
ED: Publish subject to technical corrections (03 Mar 2025) by Philip Heron
ED: Publish subject to technical corrections (03 Mar 2025) by Susanne Buiter (Executive editor)
AR by Gwynfor Morgan on behalf of the Authors (04 Mar 2025)  Manuscript 
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Short summary
Phase transitions can influence mantle convection, inhibiting or promoting vertical flow. We are motivated by two examples: the post-spinel reaction proceeding via akimotoite at cool temperatures and a curving post-garnet boundary. Some have suggested these could change mantle dynamics. We find this is unlikely for both reactions: the first due to the uniqueness of thermodynamic state and the second due to the low magnitude of the boundary’s  slope in pressure–temperature space and density change.
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