Variable sequence of events during the past seven terminations in two deep-sea cores from the Southern Ocean

The relationships among internally consistent records of summer sea-surface temperature (SSST), winter sea ice (WSI), and diatomaceous stable isotopes were studied across seven terminations over the last 660 ka in sedimentary cores from ODP sites 1093 and 1094. The sequence of events at both sites i...

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Published in:Quaternary Research
Main Authors: Schneider Mor, Aya, Yam, Ruth, Bianchi, Cristina, Kunz-Pirrung, Martina, Gersonde, Rainer, Shemesh, Aldo
Format: Article in Journal/Newspaper
Language:English
Published: Cambridge University Press (CUP) 2012
Subjects:
Southern Ocean
Sea ice
Online Access:http://dx.doi.org/10.1016/j.yqres.2011.11.006
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spelling crcambridgeupr:10.1016/j.yqres.2011.11.006 2024-09-30T14:43:09+00:00 Variable sequence of events during the past seven terminations in two deep-sea cores from the Southern Ocean Schneider Mor, Aya Yam, Ruth Bianchi, Cristina Kunz-Pirrung, Martina Gersonde, Rainer Shemesh, Aldo 2012 http://dx.doi.org/10.1016/j.yqres.2011.11.006 http://api.elsevier.com/content/article/PII:S0033589411001451?httpAccept=text/xml http://api.elsevier.com/content/article/PII:S0033589411001451?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589400003963 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Quaternary Research volume 77, issue 2, page 317-325 ISSN 0033-5894 1096-0287 journal-article 2012 crcambridgeupr https://doi.org/10.1016/j.yqres.2011.11.006 2024-09-18T04:03:19Z The relationships among internally consistent records of summer sea-surface temperature (SSST), winter sea ice (WSI), and diatomaceous stable isotopes were studied across seven terminations over the last 660 ka in sedimentary cores from ODP sites 1093 and 1094. The sequence of events at both sites indicates that SSST and WSI changes led the carbon and nitrogen isotopic changes in three Terminations (TI, TII and TVI) and followed them in the other four Terminations (TIII, TIV, TV and TVII). In both TIII and TIV, the leads and lags between the proxies were related to weak glacial mode, while in TV and TVII they were due to the influence of the mid-Pleistocene transition. We show that the sequence of events is not unique and does not follow the same pattern across terminations, implying that the processes that initiated climate change in the Southern Ocean has varied through time. Article in Journal/Newspaper Sea ice Southern Ocean Cambridge University Press Southern Ocean Quaternary Research 77 2 317 325
institution Open Polar
collection Cambridge University Press
op_collection_id crcambridgeupr
language English
description The relationships among internally consistent records of summer sea-surface temperature (SSST), winter sea ice (WSI), and diatomaceous stable isotopes were studied across seven terminations over the last 660 ka in sedimentary cores from ODP sites 1093 and 1094. The sequence of events at both sites indicates that SSST and WSI changes led the carbon and nitrogen isotopic changes in three Terminations (TI, TII and TVI) and followed them in the other four Terminations (TIII, TIV, TV and TVII). In both TIII and TIV, the leads and lags between the proxies were related to weak glacial mode, while in TV and TVII they were due to the influence of the mid-Pleistocene transition. We show that the sequence of events is not unique and does not follow the same pattern across terminations, implying that the processes that initiated climate change in the Southern Ocean has varied through time.
format Article in Journal/Newspaper
author Schneider Mor, Aya
Yam, Ruth
Bianchi, Cristina
Kunz-Pirrung, Martina
Gersonde, Rainer
Shemesh, Aldo
spellingShingle Schneider Mor, Aya
Yam, Ruth
Bianchi, Cristina
Kunz-Pirrung, Martina
Gersonde, Rainer
Shemesh, Aldo
Variable sequence of events during the past seven terminations in two deep-sea cores from the Southern Ocean
author_facet Schneider Mor, Aya
Yam, Ruth
Bianchi, Cristina
Kunz-Pirrung, Martina
Gersonde, Rainer
Shemesh, Aldo
author_sort Schneider Mor, Aya
title Variable sequence of events during the past seven terminations in two deep-sea cores from the Southern Ocean
title_short Variable sequence of events during the past seven terminations in two deep-sea cores from the Southern Ocean
title_full Variable sequence of events during the past seven terminations in two deep-sea cores from the Southern Ocean
title_fullStr Variable sequence of events during the past seven terminations in two deep-sea cores from the Southern Ocean
title_full_unstemmed Variable sequence of events during the past seven terminations in two deep-sea cores from the Southern Ocean
title_sort variable sequence of events during the past seven terminations in two deep-sea cores from the southern ocean
publisher Cambridge University Press (CUP)
publishDate 2012
url http://dx.doi.org/10.1016/j.yqres.2011.11.006
http://api.elsevier.com/content/article/PII:S0033589411001451?httpAccept=text/xml
http://api.elsevier.com/content/article/PII:S0033589411001451?httpAccept=text/plain
https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589400003963
geographic Southern Ocean
geographic_facet Southern Ocean
genre Sea ice
Southern Ocean
genre_facet Sea ice
Southern Ocean
op_source Quaternary Research
volume 77, issue 2, page 317-325
ISSN 0033-5894 1096-0287
op_rights https://www.cambridge.org/core/terms
op_doi https://doi.org/10.1016/j.yqres.2011.11.006
container_title Quaternary Research
container_volume 77
container_issue 2
container_start_page 317
op_container_end_page 325
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