New sea ice estimates over the last 49ky in the southeast Indian Ocean sector of the Southern Ocean
Although many Quaternary records have allowed the study of major glacial-interglacial change in the Southern Ocean, Holocene records from deep-sea cores are few and far between and are currently limited to the South Atlantic. Low sedimentation rates combined with deep seafloors, and the high-nutrien...
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ftmacquarieunicr:oai:https://researchers.mq.edu.au:publications/53c23da1-9878-4c1c-953b-8191d5371bbd 2023-05-15T13:54:02+02:00 New sea ice estimates over the last 49ky in the southeast Indian Ocean sector of the Southern Ocean Armand, Leanne Quilty, Patrick Howard, William Burckle, Lloyd Shemesh, Aldo Crosta, Xavier Cortese, Giuseppe Fink, David Ferry, Alexander 2012 https://researchers.mq.edu.au/en/publications/53c23da1-9878-4c1c-953b-8191d5371bbd eng eng info:eu-repo/semantics/restrictedAccess Armand , L , Quilty , P , Howard , W , Burckle , L , Shemesh , A , Crosta , X , Cortese , G , Fink , D & Ferry , A 2012 , ' New sea ice estimates over the last 49ky in the southeast Indian Ocean sector of the Southern Ocean ' , International Geological Congress (34th : 2012) , Brisbane , Australia , 5/08/12 - 10/08/12 pp. 2978 . /dk/atira/pure/mqoutputs/29 E3 - Conference Publication - published abstract or extract of paper conferenceObject 2012 ftmacquarieunicr 2021-12-26T12:37:16Z Although many Quaternary records have allowed the study of major glacial-interglacial change in the Southern Ocean, Holocene records from deep-sea cores are few and far between and are currently limited to the South Atlantic. Low sedimentation rates combined with deep seafloors, and the high-nutrient, low-chlorophyll nature of the Southern Ocean are all in part responsible for the lack of decadal-to-centennial resolution records in the open-ocean environment. Our study is focused on an array of sedimentological, micropalaeontological and geochemical analyses conducted on the first open-ocean, high-resolution core study of Quaternary-Holocene sea-ice variability in the Southeast Indian Ocean; Eltanin piston core 27-23. In this presentation the results of sea ice estimates derived from diatom remains and tied to other physical and geological proxies will reveal the change from a sea-ice covered glacial maximum and deglacial transition through to the modern day. We report evidence of several Holocene ice edge advance episodes out to 59 S, inclusive of the Antarctic Climatic Reversal. The addition of this record to existing, lower-resolution, sea-ice histories from regional cores MD88-787 and SO136-111 and in context to modern oceanographic fronts enables scenarios of regional palaeoceanographic change to be refined. Conference Object Antarc* Antarctic Sea ice Southern Ocean Macquarie University Research Portal Antarctic Southern Ocean The Antarctic Indian |
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Open Polar |
collection |
Macquarie University Research Portal |
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ftmacquarieunicr |
language |
English |
topic |
/dk/atira/pure/mqoutputs/29 E3 - Conference Publication - published abstract or extract of paper |
spellingShingle |
/dk/atira/pure/mqoutputs/29 E3 - Conference Publication - published abstract or extract of paper Armand, Leanne Quilty, Patrick Howard, William Burckle, Lloyd Shemesh, Aldo Crosta, Xavier Cortese, Giuseppe Fink, David Ferry, Alexander New sea ice estimates over the last 49ky in the southeast Indian Ocean sector of the Southern Ocean |
topic_facet |
/dk/atira/pure/mqoutputs/29 E3 - Conference Publication - published abstract or extract of paper |
description |
Although many Quaternary records have allowed the study of major glacial-interglacial change in the Southern Ocean, Holocene records from deep-sea cores are few and far between and are currently limited to the South Atlantic. Low sedimentation rates combined with deep seafloors, and the high-nutrient, low-chlorophyll nature of the Southern Ocean are all in part responsible for the lack of decadal-to-centennial resolution records in the open-ocean environment. Our study is focused on an array of sedimentological, micropalaeontological and geochemical analyses conducted on the first open-ocean, high-resolution core study of Quaternary-Holocene sea-ice variability in the Southeast Indian Ocean; Eltanin piston core 27-23. In this presentation the results of sea ice estimates derived from diatom remains and tied to other physical and geological proxies will reveal the change from a sea-ice covered glacial maximum and deglacial transition through to the modern day. We report evidence of several Holocene ice edge advance episodes out to 59 S, inclusive of the Antarctic Climatic Reversal. The addition of this record to existing, lower-resolution, sea-ice histories from regional cores MD88-787 and SO136-111 and in context to modern oceanographic fronts enables scenarios of regional palaeoceanographic change to be refined. |
format |
Conference Object |
author |
Armand, Leanne Quilty, Patrick Howard, William Burckle, Lloyd Shemesh, Aldo Crosta, Xavier Cortese, Giuseppe Fink, David Ferry, Alexander |
author_facet |
Armand, Leanne Quilty, Patrick Howard, William Burckle, Lloyd Shemesh, Aldo Crosta, Xavier Cortese, Giuseppe Fink, David Ferry, Alexander |
author_sort |
Armand, Leanne |
title |
New sea ice estimates over the last 49ky in the southeast Indian Ocean sector of the Southern Ocean |
title_short |
New sea ice estimates over the last 49ky in the southeast Indian Ocean sector of the Southern Ocean |
title_full |
New sea ice estimates over the last 49ky in the southeast Indian Ocean sector of the Southern Ocean |
title_fullStr |
New sea ice estimates over the last 49ky in the southeast Indian Ocean sector of the Southern Ocean |
title_full_unstemmed |
New sea ice estimates over the last 49ky in the southeast Indian Ocean sector of the Southern Ocean |
title_sort |
new sea ice estimates over the last 49ky in the southeast indian ocean sector of the southern ocean |
publishDate |
2012 |
url |
https://researchers.mq.edu.au/en/publications/53c23da1-9878-4c1c-953b-8191d5371bbd |
geographic |
Antarctic Southern Ocean The Antarctic Indian |
geographic_facet |
Antarctic Southern Ocean The Antarctic Indian |
genre |
Antarc* Antarctic Sea ice Southern Ocean |
genre_facet |
Antarc* Antarctic Sea ice Southern Ocean |
op_source |
Armand , L , Quilty , P , Howard , W , Burckle , L , Shemesh , A , Crosta , X , Cortese , G , Fink , D & Ferry , A 2012 , ' New sea ice estimates over the last 49ky in the southeast Indian Ocean sector of the Southern Ocean ' , International Geological Congress (34th : 2012) , Brisbane , Australia , 5/08/12 - 10/08/12 pp. 2978 . |
op_rights |
info:eu-repo/semantics/restrictedAccess |
_version_ |
1766259547445395456 |