Articles | Volume 17, issue 1
Research article
05 Jan 2021
Research article |  | 05 Jan 2021

Mid-Holocene Antarctic sea-ice increase driven by marine ice sheet retreat

Kate E. Ashley, Robert McKay, Johan Etourneau, Francisco J. Jimenez-Espejo, Alan Condron, Anna Albot, Xavier Crosta, Christina Riesselman, Osamu Seki, Guillaume Massé, Nicholas R. Golledge, Edward Gasson, Daniel P. Lowry, Nicholas E. Barrand, Katelyn Johnson, Nancy Bertler, Carlota Escutia, Robert Dunbar, and James A. Bendle


Interactive discussion

Status: closed
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
ED: Reconsider after major revisions (26 May 2020) by Bjørg Risebrobakken
AR by Svenja Lange on behalf of the Authors (12 Sep 2020)  Author's response    Manuscript
ED: Publish subject to minor revisions (review by editor) (18 Sep 2020) by Bjørg Risebrobakken
AR by Kate Ashley on behalf of the Authors (15 Oct 2020)  Author's response    Manuscript
ED: Publish as is (16 Oct 2020) by Bjørg Risebrobakken
Short summary
We present a multi-proxy record of Holocene glacial meltwater input, sediment transport, and sea-ice variability off East Antarctica. Our record shows that a rapid Antarctic sea-ice increase during the mid-Holocene (~ 4.5 ka) occurred against a backdrop of increasing glacial meltwater input and gradual climate warming. We suggest that mid-Holocene ice shelf cavity expansion led to cooling of surface waters and sea-ice growth, which slowed basal ice shelf melting.