Persistent millennial-scale climate variability in Southern Europe during Marine Isotope Stage 6
Exploring the mode and tempo of millennial-scale climate variability under evolving boundary conditions can provide insights into tipping points in different parts of the Earth system, and can facilitate a more detailed understanding of climate teleconnections and phase relationships between differe...
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Online Access: | http://sro.sussex.ac.uk/id/eprint/94932/ http://sro.sussex.ac.uk/id/eprint/94932/1/Wilson_etal_ms_accepted.pdf http://sro.sussex.ac.uk/id/eprint/94932/4/1-s2.0-S2666033420300162-main.pdf https://doi.org/10.1016/j.qsa.2020.100016 |
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ftunivsussex:oai:sro.sussex.ac.uk:94932 2023-07-30T04:05:20+02:00 Persistent millennial-scale climate variability in Southern Europe during Marine Isotope Stage 6 Wilson, G P Frogley, M R Hughes, P D Roucoux, K H Magari, V Jones, T D Leng, M L Tzedakis, P C 2021-04-01 application/pdf http://sro.sussex.ac.uk/id/eprint/94932/ http://sro.sussex.ac.uk/id/eprint/94932/1/Wilson_etal_ms_accepted.pdf http://sro.sussex.ac.uk/id/eprint/94932/4/1-s2.0-S2666033420300162-main.pdf https://doi.org/10.1016/j.qsa.2020.100016 en eng Elsevier http://sro.sussex.ac.uk/id/eprint/94932/1/Wilson_etal_ms_accepted.pdf http://sro.sussex.ac.uk/id/eprint/94932/4/1-s2.0-S2666033420300162-main.pdf Wilson, G P, Frogley, M R, Hughes, P D, Roucoux, K H, Magari, V, Jones, T D, Leng, M L and Tzedakis, P C (2021) Persistent millennial-scale climate variability in Southern Europe during Marine Isotope Stage 6. Quaternary Science Advances, 3. a100016 1-10. ISSN 2666-0334 cc_by_nc_nd_4 Article PeerReviewed 2021 ftunivsussex https://doi.org/10.1016/j.qsa.2020.100016 2023-07-11T20:43:16Z Exploring the mode and tempo of millennial-scale climate variability under evolving boundary conditions can provide insights into tipping points in different parts of the Earth system, and can facilitate a more detailed understanding of climate teleconnections and phase relationships between different Earth system components. Here we use fossil diatom and stable carbon and oxygen isotope analysis of lake sediment deposits (core I-284) from the Ioannina basin, NW Greece, to explore in further detail millennial-scale climate instability in southern Europe during Marine Isotope Stage 6 (MIS 6; ca. 185‒130 ka). This interval correlates with the Vlasian Stage in Greece and the Late Saalian Substage in northern Europe, which were both characterised by extensive glaciations. The new dataset resolves at least 18 discrete warmer/wetter intervals, many of which were associated with strong Asian Monsoon events and North Atlantic interstadials. A number of cooler/drier intervals are also identified in the I-284 record, which are typically associated with weaker Asian Monsoon events and North Atlantic stadials, consistent with a variable Atlantic Meridional Overturning Circulation. Unlike the subdued changes in tree populations that are observed at Ioannina during mid-to-late MIS 6, the diatom record contains frequent high-amplitude oscillations in species assemblages, pointing to its sensitivity at a time when the lake system must have been close to environmental thresholds. Millennial-scale variability in diatom species assemblages continues into late MIS 6 at Ioannina, contributing important evidence for an emerging picture of frequent and persistent climate instability even at times of high global ice volume. Article in Journal/Newspaper North Atlantic University of Sussex: Sussex Research Online Quaternary Science Advances 3 100016 |
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Open Polar |
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University of Sussex: Sussex Research Online |
op_collection_id |
ftunivsussex |
language |
English |
description |
Exploring the mode and tempo of millennial-scale climate variability under evolving boundary conditions can provide insights into tipping points in different parts of the Earth system, and can facilitate a more detailed understanding of climate teleconnections and phase relationships between different Earth system components. Here we use fossil diatom and stable carbon and oxygen isotope analysis of lake sediment deposits (core I-284) from the Ioannina basin, NW Greece, to explore in further detail millennial-scale climate instability in southern Europe during Marine Isotope Stage 6 (MIS 6; ca. 185‒130 ka). This interval correlates with the Vlasian Stage in Greece and the Late Saalian Substage in northern Europe, which were both characterised by extensive glaciations. The new dataset resolves at least 18 discrete warmer/wetter intervals, many of which were associated with strong Asian Monsoon events and North Atlantic interstadials. A number of cooler/drier intervals are also identified in the I-284 record, which are typically associated with weaker Asian Monsoon events and North Atlantic stadials, consistent with a variable Atlantic Meridional Overturning Circulation. Unlike the subdued changes in tree populations that are observed at Ioannina during mid-to-late MIS 6, the diatom record contains frequent high-amplitude oscillations in species assemblages, pointing to its sensitivity at a time when the lake system must have been close to environmental thresholds. Millennial-scale variability in diatom species assemblages continues into late MIS 6 at Ioannina, contributing important evidence for an emerging picture of frequent and persistent climate instability even at times of high global ice volume. |
format |
Article in Journal/Newspaper |
author |
Wilson, G P Frogley, M R Hughes, P D Roucoux, K H Magari, V Jones, T D Leng, M L Tzedakis, P C |
spellingShingle |
Wilson, G P Frogley, M R Hughes, P D Roucoux, K H Magari, V Jones, T D Leng, M L Tzedakis, P C Persistent millennial-scale climate variability in Southern Europe during Marine Isotope Stage 6 |
author_facet |
Wilson, G P Frogley, M R Hughes, P D Roucoux, K H Magari, V Jones, T D Leng, M L Tzedakis, P C |
author_sort |
Wilson, G P |
title |
Persistent millennial-scale climate variability in Southern Europe during Marine Isotope Stage 6 |
title_short |
Persistent millennial-scale climate variability in Southern Europe during Marine Isotope Stage 6 |
title_full |
Persistent millennial-scale climate variability in Southern Europe during Marine Isotope Stage 6 |
title_fullStr |
Persistent millennial-scale climate variability in Southern Europe during Marine Isotope Stage 6 |
title_full_unstemmed |
Persistent millennial-scale climate variability in Southern Europe during Marine Isotope Stage 6 |
title_sort |
persistent millennial-scale climate variability in southern europe during marine isotope stage 6 |
publisher |
Elsevier |
publishDate |
2021 |
url |
http://sro.sussex.ac.uk/id/eprint/94932/ http://sro.sussex.ac.uk/id/eprint/94932/1/Wilson_etal_ms_accepted.pdf http://sro.sussex.ac.uk/id/eprint/94932/4/1-s2.0-S2666033420300162-main.pdf https://doi.org/10.1016/j.qsa.2020.100016 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
http://sro.sussex.ac.uk/id/eprint/94932/1/Wilson_etal_ms_accepted.pdf http://sro.sussex.ac.uk/id/eprint/94932/4/1-s2.0-S2666033420300162-main.pdf Wilson, G P, Frogley, M R, Hughes, P D, Roucoux, K H, Magari, V, Jones, T D, Leng, M L and Tzedakis, P C (2021) Persistent millennial-scale climate variability in Southern Europe during Marine Isotope Stage 6. Quaternary Science Advances, 3. a100016 1-10. ISSN 2666-0334 |
op_rights |
cc_by_nc_nd_4 |
op_doi |
https://doi.org/10.1016/j.qsa.2020.100016 |
container_title |
Quaternary Science Advances |
container_volume |
3 |
container_start_page |
100016 |
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1772817184396935168 |