Orbitally induced oscillations in the East Antarctic ice sheet at the Oligocene/Miocene boundary
Between 34 and 15 million years (Myr) ago, when planetary temperatures were 3–4 °C warmer than at present and atmospheric CO 2 concentrations were twice as high as today 1 , the Antarctic ice sheets may have been unstable 2 , 3 , 4 , 5 , 6 , 7 . Oxygen isotope records from deep-sea sediment cores su...
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| Veröffentlicht in: | Nature (London) 2001-10, Vol.413 (6857), p.719-723 |
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| creator | Naish, Tim R. Woolfe, Ken J. Barrett, Peter J. Wilson, Gary S. Atkins, Cliff Bohaty, Steven M. Bücker, Christian J. Claps, Michele Davey, Fred J. Dunbar, Gavin B. Dunn, Alistair G. Fielding, Chris R. Florindo, Fabio Hannah, Michael J. Harwood, David M. Henrys, Stuart A. Krissek, Lawrence A. Lavelle, Mark van der Meer, Jaap McIntosh, William C. Niessen, Frank Passchier, Sandra Powell, Ross D. Roberts, Andrew P. Sagnotti, Leonardo Scherer, Reed P. Strong, C. Percy Talarico, Franco Verosub, Kenneth L. Villa, Giuliana Watkins, David K. Webb, Peter-N. Wonik, Thomas |
| description | Between 34 and 15 million years (Myr) ago, when planetary temperatures were 3–4 °C warmer than at present and atmospheric CO
2
concentrations were twice as high as today
1
, the Antarctic ice sheets may have been unstable
2
,
3
,
4
,
5
,
6
,
7
. Oxygen isotope records from deep-sea sediment cores suggest that during this time fluctuations in global temperatures and high-latitude continental ice volumes were influenced by orbital cycles
8
,
9
,
10
. But it has hitherto not been possible to calibrate the inferred changes in ice volume with direct evidence for oscillations of the Antarctic ice sheets
11
. Here we present sediment data from shallow marine cores in the western Ross Sea that exhibit well dated cyclic variations, and which link the extent of the East Antarctic ice sheet directly to orbital cycles during the Oligocene/Miocene transition (24.1–23.7 Myr ago). Three rapidly deposited glacimarine sequences are constrained to a period of less than 450 kyr by our age model, suggesting that orbital influences at the frequencies of obliquity (40 kyr) and eccentricity (125 kyr) controlled the oscillations of the ice margin at that time. An erosional hiatus covering 250 kyr provides direct evidence for a major episode of global cooling and ice-sheet expansion about 23.7 Myr ago, which had previously been inferred from oxygen isotope data (Mi1 event
5
). |
| doi_str_mv | 10.1038/35099534 |
| format | Article |
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2
concentrations were twice as high as today
1
, the Antarctic ice sheets may have been unstable
2
,
3
,
4
,
5
,
6
,
7
. Oxygen isotope records from deep-sea sediment cores suggest that during this time fluctuations in global temperatures and high-latitude continental ice volumes were influenced by orbital cycles
8
,
9
,
10
. But it has hitherto not been possible to calibrate the inferred changes in ice volume with direct evidence for oscillations of the Antarctic ice sheets
11
. Here we present sediment data from shallow marine cores in the western Ross Sea that exhibit well dated cyclic variations, and which link the extent of the East Antarctic ice sheet directly to orbital cycles during the Oligocene/Miocene transition (24.1–23.7 Myr ago). Three rapidly deposited glacimarine sequences are constrained to a period of less than 450 kyr by our age model, suggesting that orbital influences at the frequencies of obliquity (40 kyr) and eccentricity (125 kyr) controlled the oscillations of the ice margin at that time. An erosional hiatus covering 250 kyr provides direct evidence for a major episode of global cooling and ice-sheet expansion about 23.7 Myr ago, which had previously been inferred from oxygen isotope data (Mi1 event
5
).</description><identifier>ISSN: 0028-0836</identifier><identifier>EISSN: 1476-4687</identifier><identifier>DOI: 10.1038/35099534</identifier><identifier>PMID: 11607028</identifier><identifier>CODEN: NATUAS</identifier><language>eng</language><publisher>London: Nature Publishing Group UK</publisher><subject>Brackish ; Carbon dioxide ; Cores ; Deep sea ; Earth sciences ; Earth, ocean, space ; Exact sciences and technology ; Fluctuations ; Freshwater ; Geological time ; Global temperatures ; Humanities and Social Sciences ; Ice ; Isotopes ; Latitude ; letter ; Marine ; Miocene ; multidisciplinary ; Oligocene ; Oxygen ; Oxygen isotopes ; Science ; Science (multidisciplinary) ; Sediments ; Stratigraphy</subject><ispartof>Nature (London), 2001-10, Vol.413 (6857), p.719-723</ispartof><rights>Macmillan Magazines Ltd. 2001</rights><rights>2002 INIST-CNRS</rights><rights>COPYRIGHT 2001 Nature Publishing Group</rights><rights>Copyright Macmillan Journals Ltd. Oct 18, 2001</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a729t-af792b9177ba4e8808100aa775a68ea69200f7336b276661bbf84374d4325a843</citedby><cites>FETCH-LOGICAL-a729t-af792b9177ba4e8808100aa775a68ea69200f7336b276661bbf84374d4325a843</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1038/35099534$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1038/35099534$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,777,781,27905,27906,41469,42538,51300</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=14186298$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/11607028$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Naish, Tim R.</creatorcontrib><creatorcontrib>Woolfe, Ken J.</creatorcontrib><creatorcontrib>Barrett, Peter J.</creatorcontrib><creatorcontrib>Wilson, Gary S.</creatorcontrib><creatorcontrib>Atkins, Cliff</creatorcontrib><creatorcontrib>Bohaty, Steven M.</creatorcontrib><creatorcontrib>Bücker, Christian J.</creatorcontrib><creatorcontrib>Claps, Michele</creatorcontrib><creatorcontrib>Davey, Fred J.</creatorcontrib><creatorcontrib>Dunbar, Gavin B.</creatorcontrib><creatorcontrib>Dunn, Alistair G.</creatorcontrib><creatorcontrib>Fielding, Chris R.</creatorcontrib><creatorcontrib>Florindo, Fabio</creatorcontrib><creatorcontrib>Hannah, Michael J.</creatorcontrib><creatorcontrib>Harwood, David M.</creatorcontrib><creatorcontrib>Henrys, Stuart A.</creatorcontrib><creatorcontrib>Krissek, Lawrence A.</creatorcontrib><creatorcontrib>Lavelle, Mark</creatorcontrib><creatorcontrib>van der Meer, Jaap</creatorcontrib><creatorcontrib>McIntosh, William C.</creatorcontrib><creatorcontrib>Niessen, Frank</creatorcontrib><creatorcontrib>Passchier, Sandra</creatorcontrib><creatorcontrib>Powell, Ross D.</creatorcontrib><creatorcontrib>Roberts, Andrew P.</creatorcontrib><creatorcontrib>Sagnotti, Leonardo</creatorcontrib><creatorcontrib>Scherer, Reed P.</creatorcontrib><creatorcontrib>Strong, C. Percy</creatorcontrib><creatorcontrib>Talarico, Franco</creatorcontrib><creatorcontrib>Verosub, Kenneth L.</creatorcontrib><creatorcontrib>Villa, Giuliana</creatorcontrib><creatorcontrib>Watkins, David K.</creatorcontrib><creatorcontrib>Webb, Peter-N.</creatorcontrib><creatorcontrib>Wonik, Thomas</creatorcontrib><title>Orbitally induced oscillations in the East Antarctic ice sheet at the Oligocene/Miocene boundary</title><title>Nature (London)</title><addtitle>Nature</addtitle><addtitle>Nature</addtitle><description>Between 34 and 15 million years (Myr) ago, when planetary temperatures were 3–4 °C warmer than at present and atmospheric CO
2
concentrations were twice as high as today
1
, the Antarctic ice sheets may have been unstable
2
,
3
,
4
,
5
,
6
,
7
. Oxygen isotope records from deep-sea sediment cores suggest that during this time fluctuations in global temperatures and high-latitude continental ice volumes were influenced by orbital cycles
8
,
9
,
10
. But it has hitherto not been possible to calibrate the inferred changes in ice volume with direct evidence for oscillations of the Antarctic ice sheets
11
. Here we present sediment data from shallow marine cores in the western Ross Sea that exhibit well dated cyclic variations, and which link the extent of the East Antarctic ice sheet directly to orbital cycles during the Oligocene/Miocene transition (24.1–23.7 Myr ago). Three rapidly deposited glacimarine sequences are constrained to a period of less than 450 kyr by our age model, suggesting that orbital influences at the frequencies of obliquity (40 kyr) and eccentricity (125 kyr) controlled the oscillations of the ice margin at that time. An erosional hiatus covering 250 kyr provides direct evidence for a major episode of global cooling and ice-sheet expansion about 23.7 Myr ago, which had previously been inferred from oxygen isotope data (Mi1 event
5
).</description><subject>Brackish</subject><subject>Carbon dioxide</subject><subject>Cores</subject><subject>Deep sea</subject><subject>Earth sciences</subject><subject>Earth, ocean, space</subject><subject>Exact sciences and technology</subject><subject>Fluctuations</subject><subject>Freshwater</subject><subject>Geological time</subject><subject>Global temperatures</subject><subject>Humanities and Social Sciences</subject><subject>Ice</subject><subject>Isotopes</subject><subject>Latitude</subject><subject>letter</subject><subject>Marine</subject><subject>Miocene</subject><subject>multidisciplinary</subject><subject>Oligocene</subject><subject>Oxygen</subject><subject>Oxygen isotopes</subject><subject>Science</subject><subject>Science (multidisciplinary)</subject><subject>Sediments</subject><subject>Stratigraphy</subject><issn>0028-0836</issn><issn>1476-4687</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2001</creationdate><recordtype>article</recordtype><sourceid>8G5</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><sourceid>GUQSH</sourceid><sourceid>M2O</sourceid><recordid>eNqF0m1rFDEQAOBFFHtWwV8gi1BRZNu8bV4-HkfVQvVAK35cZ7PZa8peck2yYP-9sXeynlZKPiRknkyYYYriOUbHGFF5QmukVE3Zg2KGmeAV41I8LGYIEVkhSflB8STGK4RQjQV7XBxgzJHIwVnxfRlam2AYbkrrulGbrvRR22GAZL2L-bJMl6Y8hZjKuUsQdLK6tNqU8dKYVEK6jS8Hu_LaOHPy0d7uZetH10G4eVo86mGI5tluPyy-vju9WHyozpfvzxbz8woEUamCXijSKixEC8xIiSRGCECIGrg0wBVBqBeU8pYIzjlu214yKljHKKkhHw-LV9u8m-CvRxNTs7ZRm1yIM36MjSAEiZrzeyHhiiolyb0QS4ypIHWGL_-CV34MLlfbEMQYR7KWGVVbtILBNNb1PgXQq9yqAIN3prf5eo6lUJxLTKeke15v7HXzJzq-A-XVmbXVd2Z9s_cgm2R-pBWMMTZnXz7v27f_t_OLb4tP-_r1VuvgYwymbzbBrvMANBg1v4a0-T2kmb7Y9Wts16ab4G4qMzjaAYgahj6A0zZOjmHJiZJTNTGH3MqEqfH_fPoTM-v0pA</recordid><startdate>20011018</startdate><enddate>20011018</enddate><creator>Naish, Tim R.</creator><creator>Woolfe, Ken J.</creator><creator>Barrett, Peter J.</creator><creator>Wilson, Gary S.</creator><creator>Atkins, Cliff</creator><creator>Bohaty, Steven M.</creator><creator>Bücker, Christian J.</creator><creator>Claps, Michele</creator><creator>Davey, Fred J.</creator><creator>Dunbar, Gavin B.</creator><creator>Dunn, Alistair G.</creator><creator>Fielding, Chris R.</creator><creator>Florindo, Fabio</creator><creator>Hannah, Michael J.</creator><creator>Harwood, David M.</creator><creator>Henrys, Stuart A.</creator><creator>Krissek, Lawrence A.</creator><creator>Lavelle, Mark</creator><creator>van der Meer, Jaap</creator><creator>McIntosh, William C.</creator><creator>Niessen, Frank</creator><creator>Passchier, Sandra</creator><creator>Powell, Ross D.</creator><creator>Roberts, Andrew P.</creator><creator>Sagnotti, Leonardo</creator><creator>Scherer, Reed P.</creator><creator>Strong, C. 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Academic</collection><jtitle>Nature (London)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Naish, Tim R.</au><au>Woolfe, Ken J.</au><au>Barrett, Peter J.</au><au>Wilson, Gary S.</au><au>Atkins, Cliff</au><au>Bohaty, Steven M.</au><au>Bücker, Christian J.</au><au>Claps, Michele</au><au>Davey, Fred J.</au><au>Dunbar, Gavin B.</au><au>Dunn, Alistair G.</au><au>Fielding, Chris R.</au><au>Florindo, Fabio</au><au>Hannah, Michael J.</au><au>Harwood, David M.</au><au>Henrys, Stuart A.</au><au>Krissek, Lawrence A.</au><au>Lavelle, Mark</au><au>van der Meer, Jaap</au><au>McIntosh, William C.</au><au>Niessen, Frank</au><au>Passchier, Sandra</au><au>Powell, Ross D.</au><au>Roberts, Andrew P.</au><au>Sagnotti, Leonardo</au><au>Scherer, Reed P.</au><au>Strong, C. Percy</au><au>Talarico, Franco</au><au>Verosub, Kenneth L.</au><au>Villa, Giuliana</au><au>Watkins, David K.</au><au>Webb, Peter-N.</au><au>Wonik, Thomas</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Orbitally induced oscillations in the East Antarctic ice sheet at the Oligocene/Miocene boundary</atitle><jtitle>Nature (London)</jtitle><stitle>Nature</stitle><addtitle>Nature</addtitle><date>2001-10-18</date><risdate>2001</risdate><volume>413</volume><issue>6857</issue><spage>719</spage><epage>723</epage><pages>719-723</pages><issn>0028-0836</issn><eissn>1476-4687</eissn><coden>NATUAS</coden><abstract>Between 34 and 15 million years (Myr) ago, when planetary temperatures were 3–4 °C warmer than at present and atmospheric CO
2
concentrations were twice as high as today
1
, the Antarctic ice sheets may have been unstable
2
,
3
,
4
,
5
,
6
,
7
. Oxygen isotope records from deep-sea sediment cores suggest that during this time fluctuations in global temperatures and high-latitude continental ice volumes were influenced by orbital cycles
8
,
9
,
10
. But it has hitherto not been possible to calibrate the inferred changes in ice volume with direct evidence for oscillations of the Antarctic ice sheets
11
. Here we present sediment data from shallow marine cores in the western Ross Sea that exhibit well dated cyclic variations, and which link the extent of the East Antarctic ice sheet directly to orbital cycles during the Oligocene/Miocene transition (24.1–23.7 Myr ago). Three rapidly deposited glacimarine sequences are constrained to a period of less than 450 kyr by our age model, suggesting that orbital influences at the frequencies of obliquity (40 kyr) and eccentricity (125 kyr) controlled the oscillations of the ice margin at that time. An erosional hiatus covering 250 kyr provides direct evidence for a major episode of global cooling and ice-sheet expansion about 23.7 Myr ago, which had previously been inferred from oxygen isotope data (Mi1 event
5
).</abstract><cop>London</cop><pub>Nature Publishing Group UK</pub><pmid>11607028</pmid><doi>10.1038/35099534</doi><tpages>5</tpages><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0028-0836 |
| ispartof | Nature (London), 2001-10, Vol.413 (6857), p.719-723 |
| issn | 0028-0836 1476-4687 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_72207566 |
| source | Nature; SpringerLink Journals - AutoHoldings |
| subjects | Brackish Carbon dioxide Cores Deep sea Earth sciences Earth, ocean, space Exact sciences and technology Fluctuations Freshwater Geological time Global temperatures Humanities and Social Sciences Ice Isotopes Latitude letter Marine Miocene multidisciplinary Oligocene Oxygen Oxygen isotopes Science Science (multidisciplinary) Sediments Stratigraphy |
| title | Orbitally induced oscillations in the East Antarctic ice sheet at the Oligocene/Miocene boundary |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-19T16%3A07%3A24IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-gale_proqu&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Orbitally%20induced%20oscillations%20in%20the%20East%20Antarctic%20ice%20sheet%20at%20the%20Oligocene/Miocene%20boundary&rft.jtitle=Nature%20(London)&rft.au=Naish,%20Tim%20R.&rft.date=2001-10-18&rft.volume=413&rft.issue=6857&rft.spage=719&rft.epage=723&rft.pages=719-723&rft.issn=0028-0836&rft.eissn=1476-4687&rft.coden=NATUAS&rft_id=info:doi/10.1038/35099534&rft_dat=%3Cgale_proqu%3EA187966813%3C/gale_proqu%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=204460858&rft_id=info:pmid/11607028&rft_galeid=A187966813&rfr_iscdi=true |