Climate-induced speleothem radiocarbon variability on Socotra Island from the Last Glacial Maximum to the Younger Dryas

Therre, Steffen; Fohlmeister, Jens; Fleitmann, Dominik; Matter, Albert; Burns, Stephen J.; Arps, Jennifer; Schröder-Ritzrau, Andrea; Friedrich, Ronny; Frank, Norbert

doi:https://doi.org/10.5194/cp-16-409-2020

Articles | Volume 16, issue 1

https://doi.org/10.5194/cp-16-409-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/cp-16-409-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 16, issue 1

Research article

|

28 Feb 2020

Research article |

| 28 Feb 2020

Climate-induced speleothem radiocarbon variability on Socotra Island from the Last Glacial Maximum to the Younger Dryas

Steffen Therre, Jens Fohlmeister, Dominik Fleitmann, Albert Matter, Stephen J. Burns, Jennifer Arps, Andrea Schröder-Ritzrau, Ronny Friedrich, and Norbert Frank

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Final revised paper (published on 28 Feb 2020)
Preprint (discussion started on 19 Sep 2019)

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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- Supplement

RC1: 'Comments to Therre et al.', Anonymous Referee #1, 08 Oct 2019
- AC1: 'Final author response to all review comments', Steffen Therre, 17 Jan 2020
RC2: 'Comments of a manuscript by Therre et al.', Anonymous Referee #2, 10 Jan 2020
- AC1: 'Final author response to all review comments', Steffen Therre, 17 Jan 2020

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision

ED: Publish subject to technical corrections (03 Feb 2020) by Luke Skinner

Short summary

The radiocarbon (¹⁴C) levels of a stalagmite (grown 27–11 kyr before today) from Socotra Island (Arabian Sea) show drastic changes across the last termination. Our study highlights the influence of a warming climate with increasing precipitation towards the ending glacial on stalagmite ¹⁴C. High-resolution measurements suggest ¹⁴C is linked to a denser vegetation coverage on the island. Therefore, stalagmite ¹⁴C can be used as a climate tracer on millennial to sub-centennial timescales.