Age control and stratigraphy of a sediment profile from the Lomonosov Ridge, Arctic Ocean
The upper 200 m of the sediments recovered during IODP Leg 302, the Arctic Coring Expedition (ACEX), to the Lomonosov Ridge in the central Arctic Ocean consist almost exclusively of detrital material. The scarcity of biostratigraphic markers severely complicates the establishment of a reliable chron...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.706556 2023-05-15T14:27:06+02:00 Age control and stratigraphy of a sediment profile from the Lomonosov Ridge, Arctic Ocean Backman, Jan Jakobsson, Martin Frank, Martin Sangiorgi, Francesca Brinkhuis, Henk Stickley, Catherine E O'Regan, Matthew Løvlie, Reidar Pälike, Heiko Spofforth, David J A Gattacceca, Jérôme Moran, Kathryn King, John W Heil, Chip MEDIAN LATITUDE: 87.892587 * MEDIAN LONGITUDE: 137.730787 * SOUTH-BOUND LATITUDE: 87.866580 * WEST-BOUND LONGITUDE: 136.177350 * NORTH-BOUND LATITUDE: 87.921180 * EAST-BOUND LONGITUDE: 139.365010 * DATE/TIME START: 2004-08-19T00:00:00 * DATE/TIME END: 2004-08-27T00:00:00 2008-10-27 application/zip, 3 datasets https://doi.pangaea.de/10.1594/PANGAEA.706556 https://doi.org/10.1594/PANGAEA.706556 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.706556 https://doi.org/10.1594/PANGAEA.706556 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Backman, Jan; Jakobsson, Martin; Frank, Martin; Sangiorgi, Francesca; Brinkhuis, Henk; Stickley, Catherine E; O'Regan, Matthew; Løvlie, Reidar; Pälike, Heiko; Spofforth, David J A; Gattacceca, Jérôme; Moran, Kathryn; King, John W; Heil, Chip (2008): Age model and core-seismic integration for the Cenozoic Arctic Coring Expedition sediments from the Lomonosov Ridge. Paleoceanography, 23(1), PA1S03, https://doi.org/10.1029/2007PA001476 302-CompSite 302-M0002A 302-M0004A ACEX-M2A ACEX-M4A Arctic Coring Expedition ACEX Arctic Ocean COMPCORE Composite Core Exp302 Integrated Ocean Drilling Program / International Ocean Discovery Program International Polar Year (2007-2008) IODP IPY Vidar Viking Dataset 2008 ftpangaea https://doi.org/10.1594/PANGAEA.706556 https://doi.org/10.1029/2007PA001476 2023-01-20T07:31:15Z The upper 200 m of the sediments recovered during IODP Leg 302, the Arctic Coring Expedition (ACEX), to the Lomonosov Ridge in the central Arctic Ocean consist almost exclusively of detrital material. The scarcity of biostratigraphic markers severely complicates the establishment of a reliable chronostratigraphic framework for these sediments, which contain the first continuous record of the Neogene environmental and climatic evolution of the Arctic region. Here we present profiles of cosmogenic 10Be together with the seawater-derived fraction of stable 9Be obtained from the ACEX cores. The down-core decrease of 10Be/9Be provides an average sedimentation rate of 14.5 ± 1 m/Ma for the uppermost 151 m of the ACEX record and allows the establishment of a chronostratigraphy for the past 12.3 Ma. The age-corrected 10Be concentrations and 10Be/9Be ratios suggest the existence of an essentially continuous sea ice cover over the past 12.3 Ma. Dataset Arctic Arctic Arctic Ocean International Polar Year IPY Lomonosov Ridge Sea ice PANGAEA - Data Publisher for Earth & Environmental Science Arctic Arctic Ocean ENVELOPE(136.177350,139.365010,87.921180,87.866580) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
302-CompSite 302-M0002A 302-M0004A ACEX-M2A ACEX-M4A Arctic Coring Expedition ACEX Arctic Ocean COMPCORE Composite Core Exp302 Integrated Ocean Drilling Program / International Ocean Discovery Program International Polar Year (2007-2008) IODP IPY Vidar Viking |
spellingShingle |
302-CompSite 302-M0002A 302-M0004A ACEX-M2A ACEX-M4A Arctic Coring Expedition ACEX Arctic Ocean COMPCORE Composite Core Exp302 Integrated Ocean Drilling Program / International Ocean Discovery Program International Polar Year (2007-2008) IODP IPY Vidar Viking Backman, Jan Jakobsson, Martin Frank, Martin Sangiorgi, Francesca Brinkhuis, Henk Stickley, Catherine E O'Regan, Matthew Løvlie, Reidar Pälike, Heiko Spofforth, David J A Gattacceca, Jérôme Moran, Kathryn King, John W Heil, Chip Age control and stratigraphy of a sediment profile from the Lomonosov Ridge, Arctic Ocean |
topic_facet |
302-CompSite 302-M0002A 302-M0004A ACEX-M2A ACEX-M4A Arctic Coring Expedition ACEX Arctic Ocean COMPCORE Composite Core Exp302 Integrated Ocean Drilling Program / International Ocean Discovery Program International Polar Year (2007-2008) IODP IPY Vidar Viking |
description |
The upper 200 m of the sediments recovered during IODP Leg 302, the Arctic Coring Expedition (ACEX), to the Lomonosov Ridge in the central Arctic Ocean consist almost exclusively of detrital material. The scarcity of biostratigraphic markers severely complicates the establishment of a reliable chronostratigraphic framework for these sediments, which contain the first continuous record of the Neogene environmental and climatic evolution of the Arctic region. Here we present profiles of cosmogenic 10Be together with the seawater-derived fraction of stable 9Be obtained from the ACEX cores. The down-core decrease of 10Be/9Be provides an average sedimentation rate of 14.5 ± 1 m/Ma for the uppermost 151 m of the ACEX record and allows the establishment of a chronostratigraphy for the past 12.3 Ma. The age-corrected 10Be concentrations and 10Be/9Be ratios suggest the existence of an essentially continuous sea ice cover over the past 12.3 Ma. |
format |
Dataset |
author |
Backman, Jan Jakobsson, Martin Frank, Martin Sangiorgi, Francesca Brinkhuis, Henk Stickley, Catherine E O'Regan, Matthew Løvlie, Reidar Pälike, Heiko Spofforth, David J A Gattacceca, Jérôme Moran, Kathryn King, John W Heil, Chip |
author_facet |
Backman, Jan Jakobsson, Martin Frank, Martin Sangiorgi, Francesca Brinkhuis, Henk Stickley, Catherine E O'Regan, Matthew Løvlie, Reidar Pälike, Heiko Spofforth, David J A Gattacceca, Jérôme Moran, Kathryn King, John W Heil, Chip |
author_sort |
Backman, Jan |
title |
Age control and stratigraphy of a sediment profile from the Lomonosov Ridge, Arctic Ocean |
title_short |
Age control and stratigraphy of a sediment profile from the Lomonosov Ridge, Arctic Ocean |
title_full |
Age control and stratigraphy of a sediment profile from the Lomonosov Ridge, Arctic Ocean |
title_fullStr |
Age control and stratigraphy of a sediment profile from the Lomonosov Ridge, Arctic Ocean |
title_full_unstemmed |
Age control and stratigraphy of a sediment profile from the Lomonosov Ridge, Arctic Ocean |
title_sort |
age control and stratigraphy of a sediment profile from the lomonosov ridge, arctic ocean |
publisher |
PANGAEA |
publishDate |
2008 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.706556 https://doi.org/10.1594/PANGAEA.706556 |
op_coverage |
MEDIAN LATITUDE: 87.892587 * MEDIAN LONGITUDE: 137.730787 * SOUTH-BOUND LATITUDE: 87.866580 * WEST-BOUND LONGITUDE: 136.177350 * NORTH-BOUND LATITUDE: 87.921180 * EAST-BOUND LONGITUDE: 139.365010 * DATE/TIME START: 2004-08-19T00:00:00 * DATE/TIME END: 2004-08-27T00:00:00 |
long_lat |
ENVELOPE(136.177350,139.365010,87.921180,87.866580) |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Arctic Ocean International Polar Year IPY Lomonosov Ridge Sea ice |
genre_facet |
Arctic Arctic Arctic Ocean International Polar Year IPY Lomonosov Ridge Sea ice |
op_source |
Supplement to: Backman, Jan; Jakobsson, Martin; Frank, Martin; Sangiorgi, Francesca; Brinkhuis, Henk; Stickley, Catherine E; O'Regan, Matthew; Løvlie, Reidar; Pälike, Heiko; Spofforth, David J A; Gattacceca, Jérôme; Moran, Kathryn; King, John W; Heil, Chip (2008): Age model and core-seismic integration for the Cenozoic Arctic Coring Expedition sediments from the Lomonosov Ridge. Paleoceanography, 23(1), PA1S03, https://doi.org/10.1029/2007PA001476 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.706556 https://doi.org/10.1594/PANGAEA.706556 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.706556 https://doi.org/10.1029/2007PA001476 |
_version_ |
1766300694504013824 |