Antarctic records of precessionâ€paced insolationâ€driven warming during early Pleistocene Marine Isotope Stage 31
Precisely dated Antarctic continental margin and Southern Ocean geological records show that the early Pleistocene interglacial Marine Isotope Stage 31 (MISâ€31) was characterized by warmer than present surface waters with reduced seaâ€ice and enhanced high latitude marine carbonate production. Micr...
Published in: | Geophysical Research Letters |
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Language: | English |
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2008
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Online Access: | https://www.openaccessrepository.it/record/145582 https://doi.org/10.1029/2007gl032254 |
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ftopenaccessrep:oai:zenodo.org:145582 2024-05-12T07:53:42+00:00 Antarctic records of precessionâ€paced insolationâ€driven warming during early Pleistocene Marine Isotope Stage 31 Scherer, R. P. Bohaty, S. M. Dunbar, R. B. Esper, O. Flores, J.â€A. Gersonde, R. Harwood, D. M. Roberts, A. P. Taviani, M. 2008-02-14 https://www.openaccessrepository.it/record/145582 https://doi.org/10.1029/2007gl032254 eng eng url:https://www.openaccessrepository.it/communities/itmirror https://www.openaccessrepository.it/record/145582 doi:10.1029/2007gl032254 info:eu-repo/semantics/openAccess General Earth and Planetary Sciences Geophysics info:eu-repo/semantics/article publication-article 2008 ftopenaccessrep https://doi.org/10.1029/2007gl032254 2024-04-17T15:10:33Z Precisely dated Antarctic continental margin and Southern Ocean geological records show that the early Pleistocene interglacial Marine Isotope Stage 31 (MISâ€31) was characterized by warmer than present surface waters with reduced seaâ€ice and enhanced high latitude marine carbonate production. Micropaleontologic, isotopic, and paleomagnetic evidence from drill cores at 77°S (Cape Roberts Projectâ€1) and 53°S (ODP Site 1094) indicate circumantarctic changes in sea surface temperature and water mass stratification that are in phase with high southern latitude insolation changes during MISâ€31. These changes imply a significant, though as yet unquantifiable reduction in Antarctic ice volume. This study supports the hypothesis that the interhemispheric antiphased relationship of the precession cycle attenuates a potentially significant Antarctic ice volume signal in the deep sea oxygen isotope record. The implications are that Antarctic marine ice sheets may be more susceptible to warming and high insolation driven retreat than has been widely recognized. Article in Journal/Newspaper Antarc* Antarctic Southern Ocean Istituto Nazionale di Fisica Nucleare (INFN): Open Access Repository Antarctic Cape Roberts ENVELOPE(-70.467,-70.467,-68.950,-68.950) Southern Ocean Geophysical Research Letters 35 3 |
institution |
Open Polar |
collection |
Istituto Nazionale di Fisica Nucleare (INFN): Open Access Repository |
op_collection_id |
ftopenaccessrep |
language |
English |
topic |
General Earth and Planetary Sciences Geophysics |
spellingShingle |
General Earth and Planetary Sciences Geophysics Scherer, R. P. Bohaty, S. M. Dunbar, R. B. Esper, O. Flores, J.â€A. Gersonde, R. Harwood, D. M. Roberts, A. P. Taviani, M. Antarctic records of precessionâ€paced insolationâ€driven warming during early Pleistocene Marine Isotope Stage 31 |
topic_facet |
General Earth and Planetary Sciences Geophysics |
description |
Precisely dated Antarctic continental margin and Southern Ocean geological records show that the early Pleistocene interglacial Marine Isotope Stage 31 (MISâ€31) was characterized by warmer than present surface waters with reduced seaâ€ice and enhanced high latitude marine carbonate production. Micropaleontologic, isotopic, and paleomagnetic evidence from drill cores at 77°S (Cape Roberts Projectâ€1) and 53°S (ODP Site 1094) indicate circumantarctic changes in sea surface temperature and water mass stratification that are in phase with high southern latitude insolation changes during MISâ€31. These changes imply a significant, though as yet unquantifiable reduction in Antarctic ice volume. This study supports the hypothesis that the interhemispheric antiphased relationship of the precession cycle attenuates a potentially significant Antarctic ice volume signal in the deep sea oxygen isotope record. The implications are that Antarctic marine ice sheets may be more susceptible to warming and high insolation driven retreat than has been widely recognized. |
format |
Article in Journal/Newspaper |
author |
Scherer, R. P. Bohaty, S. M. Dunbar, R. B. Esper, O. Flores, J.â€A. Gersonde, R. Harwood, D. M. Roberts, A. P. Taviani, M. |
author_facet |
Scherer, R. P. Bohaty, S. M. Dunbar, R. B. Esper, O. Flores, J.â€A. Gersonde, R. Harwood, D. M. Roberts, A. P. Taviani, M. |
author_sort |
Scherer, R. P. |
title |
Antarctic records of precessionâ€paced insolationâ€driven warming during early Pleistocene Marine Isotope Stage 31 |
title_short |
Antarctic records of precessionâ€paced insolationâ€driven warming during early Pleistocene Marine Isotope Stage 31 |
title_full |
Antarctic records of precessionâ€paced insolationâ€driven warming during early Pleistocene Marine Isotope Stage 31 |
title_fullStr |
Antarctic records of precessionâ€paced insolationâ€driven warming during early Pleistocene Marine Isotope Stage 31 |
title_full_unstemmed |
Antarctic records of precessionâ€paced insolationâ€driven warming during early Pleistocene Marine Isotope Stage 31 |
title_sort |
antarctic records of precessionâ€paced insolationâ€driven warming during early pleistocene marine isotope stage 31 |
publishDate |
2008 |
url |
https://www.openaccessrepository.it/record/145582 https://doi.org/10.1029/2007gl032254 |
long_lat |
ENVELOPE(-70.467,-70.467,-68.950,-68.950) |
geographic |
Antarctic Cape Roberts Southern Ocean |
geographic_facet |
Antarctic Cape Roberts Southern Ocean |
genre |
Antarc* Antarctic Southern Ocean |
genre_facet |
Antarc* Antarctic Southern Ocean |
op_relation |
url:https://www.openaccessrepository.it/communities/itmirror https://www.openaccessrepository.it/record/145582 doi:10.1029/2007gl032254 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1029/2007gl032254 |
container_title |
Geophysical Research Letters |
container_volume |
35 |
container_issue |
3 |
_version_ |
1798844103535886336 |