Local and Regional Constraints on Relative Sea-Level Changes in Southern Isle of Skye, Scotland, since the Last Glacial Maximum

Best, L.; Simms, A.R.; Brader, M.; Lloyd, J.; Sefton, J.; Shennan, I.

doi:10.1002/jqs.3376

Local and Regional Constraints on Relative Sea-Level Changes in Southern Isle of Skye, Scotland, since the Last Glacial Maximum

Best, L.; Simms, A.R.; Brader, M.; Lloyd, J.; Sefton, J.; Shennan, I.

Authors

L. Best

A.R. Simms

Dr Martin Brader m.d.brader@durham.ac.uk
Vice Principal

Professor Jeremy Lloyd j.m.lloyd@durham.ac.uk
Professor

Juliet Sefton juliet.p.sefton@durham.ac.uk
Academic Visitor

Ian Shennan ian.shennan@durham.ac.uk
Emeritus Professor

Abstract

New relative sea-level (RSL) data constrain the timing and magnitude of RSL changes in the southern Isle of Skye following the Last Glacial Maximum (LGM). We identify a marine limit at ~23 m OD, indicating RSL ~20 m above present c. 15.1 ka. Isolation basin data, supported by terrestrial and marine limiting dates, record an RSL fall to 11.59 m above present by c. 14.2 ka. This RSL fall occurs across the time of global Meltwater Pulse 1A, supporting recent research on the sources of ice melting. Our new data also help to resolve some of the chronological issues within the existing Isle of Skye RSL record and provide details of the sub-Arctic marine environment associated with the transition into Devensian Lateglacial climate at c. 14.5 k cal a bp, and the timing of changes in response to the Loch Lomond Stadial climate. Glacio-isostatic adjustment (GIA) model predictions of RSL deviate from the RSL constraints and reflect uncertainties in local and global ice models used within the GIA models. An empirical RSL curve provides a target for future research.

Citation

Best, L., Simms, A., Brader, M., Lloyd, J., Sefton, J., & Shennan, I. (2022). Local and Regional Constraints on Relative Sea-Level Changes in Southern Isle of Skye, Scotland, since the Last Glacial Maximum. Journal of Quaternary Science, 37(1), 59-70. https://doi.org/10.1002/jqs.3376

Journal Article Type	Article
Acceptance Date	Sep 7, 2021
Online Publication Date	Sep 23, 2021
Publication Date	Jan 3, 2022
Deposit Date	Sep 13, 2021
Publicly Available Date	Sep 23, 2022
Journal	Journal of Quaternary Science
Print ISSN	0267-8179
Electronic ISSN	1099-1417
Publisher	Wiley
Peer Reviewed	Peer Reviewed
Volume	37
Issue	1
Pages	59-70
DOI	https://doi.org/10.1002/jqs.3376
Public URL	https://durham-repository.worktribe.com/output/1241523

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Copyright Statement
This is the peer reviewed version of the following article: Best, L., Simms, A.R., Brader, M., Lloyd, J., Sefton, J. & Shennan, I. (2022). Local and Regional Constraints on Relative Sea-Level Changes in Southern Isle of Skye, Scotland, since the Last Glacial Maximum. Journal of Quaternary Science 37(1): 59-70, which has been published in final form at https://doi.org/10.1002/jqs.3376. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. This article may not be enhanced, enriched or otherwise transformed into a derivative work, without express permission from Wiley or by statutory rights under applicable legislation. Copyright notices must not be removed, obscured or modified. The article must be linked to Wiley’s version of record on Wiley Online Library and any embedding, framing or otherwise making available the article or pages thereof by third parties from platforms, services and websites other than Wiley Online Library must be prohibited.