Spatial and temporal Arctic Ocean depositional regimes: a key to the evolution of ice drift and current patterns
Sediment physical properties measured in cores from all the major ridges and plateaus in the central Arctic Ocean were studied in order to analyze the spatial and temporal consistency of sediment depositional regimes during the Quaternary. In total, six physiographically distinct areas are outlined....
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Online Access: | https://orca.cardiff.ac.uk/id/eprint/7540/ https://doi.org/10.1016/j.quascirev.2010.06.005 |
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ftunivcardiff:oai:https://orca.cardiff.ac.uk:7540 2023-05-15T13:20:23+02:00 Spatial and temporal Arctic Ocean depositional regimes: a key to the evolution of ice drift and current patterns Sellen, E. O'Regan, Matthew Jakobsson, M. 2010-12 https://orca.cardiff.ac.uk/id/eprint/7540/ https://doi.org/10.1016/j.quascirev.2010.06.005 unknown Sellen, E., O'Regan, Matthew and Jakobsson, M. 2010. Spatial and temporal Arctic Ocean depositional regimes: a key to the evolution of ice drift and current patterns. Quaternary Science Reviews 29 (25-26) , pp. 3644-3664. 10.1016/j.quascirev.2010.06.005 https://doi.org/10.1016/j.quascirev.2010.06.005 doi:10.1016/j.quascirev.2010.06.005 QE Geology Article PeerReviewed 2010 ftunivcardiff https://doi.org/10.1016/j.quascirev.2010.06.005 2022-09-25T20:16:07Z Sediment physical properties measured in cores from all the major ridges and plateaus in the central Arctic Ocean were studied in order to analyze the spatial and temporal consistency of sediment depositional regimes during the Quaternary. In total, six physiographically distinct areas are outlined. In five of these, cores can be correlated over large distances through characteristic patterns in sediment physical properties. These areas are (1) the southern Mendeleev Ridge, (2) the northern Mendeleev Ridge and Alpha Ridge, (3) the Lomonosov Ridge, (4) the Morris Jesup Rise and (5) the Yermak Plateau. Averaged downhole patterns in magnetic susceptibility, bulk density and lithostratigraphy were compiled to establish a composite stratigraphy for each area. In the sixth physiographic area, the Chukchi Borderland, repeated ice-grounding during recent glacial periods complicates the stratigraphy and prevents the compilation of a composite stratigraphy using the studied material. By utilizing published age models for the studied cores we are able to show that the northern Mendeleev Ridge and Alpha Ridge have the lowest average late Quaternary sedimentation rates, while intermediate sedimentation rates prevail on the southern Mendeleev Ridge and the Morris Jesup Rise. The second highest sedimentation rate is observed on the Lomonosov Ridge, whereas the average sedimentation rate on the Yermak Plateau is more than twice as high. The close correlation of physical properties within each area suggests uniform variations in sediment transport through time, at least throughout the later part of the Quaternary. The unique stratigraphic characteristics within each area is the product of similar past depositional regimes and are key for furthering our understanding of the evolution of ice drift and current patterns in the central Arctic Ocean. Article in Journal/Newspaper alpha ridge Arctic Arctic Arctic Ocean Chukchi Lomonosov Ridge Magnetic susceptibility Yermak plateau Cardiff University: ORCA (Online Research @ Cardiff) Alpha Ridge ENVELOPE(-120.000,-120.000,85.500,85.500) Arctic Arctic Ocean Chukchi Borderland ENVELOPE(-165.000,-165.000,77.000,77.000) Morris Jesup Rise ENVELOPE(-20.000,-20.000,83.750,83.750) Yermak Plateau ENVELOPE(5.000,5.000,81.250,81.250) Quaternary Science Reviews 29 25-26 3644 3664 |
institution |
Open Polar |
collection |
Cardiff University: ORCA (Online Research @ Cardiff) |
op_collection_id |
ftunivcardiff |
language |
unknown |
topic |
QE Geology |
spellingShingle |
QE Geology Sellen, E. O'Regan, Matthew Jakobsson, M. Spatial and temporal Arctic Ocean depositional regimes: a key to the evolution of ice drift and current patterns |
topic_facet |
QE Geology |
description |
Sediment physical properties measured in cores from all the major ridges and plateaus in the central Arctic Ocean were studied in order to analyze the spatial and temporal consistency of sediment depositional regimes during the Quaternary. In total, six physiographically distinct areas are outlined. In five of these, cores can be correlated over large distances through characteristic patterns in sediment physical properties. These areas are (1) the southern Mendeleev Ridge, (2) the northern Mendeleev Ridge and Alpha Ridge, (3) the Lomonosov Ridge, (4) the Morris Jesup Rise and (5) the Yermak Plateau. Averaged downhole patterns in magnetic susceptibility, bulk density and lithostratigraphy were compiled to establish a composite stratigraphy for each area. In the sixth physiographic area, the Chukchi Borderland, repeated ice-grounding during recent glacial periods complicates the stratigraphy and prevents the compilation of a composite stratigraphy using the studied material. By utilizing published age models for the studied cores we are able to show that the northern Mendeleev Ridge and Alpha Ridge have the lowest average late Quaternary sedimentation rates, while intermediate sedimentation rates prevail on the southern Mendeleev Ridge and the Morris Jesup Rise. The second highest sedimentation rate is observed on the Lomonosov Ridge, whereas the average sedimentation rate on the Yermak Plateau is more than twice as high. The close correlation of physical properties within each area suggests uniform variations in sediment transport through time, at least throughout the later part of the Quaternary. The unique stratigraphic characteristics within each area is the product of similar past depositional regimes and are key for furthering our understanding of the evolution of ice drift and current patterns in the central Arctic Ocean. |
format |
Article in Journal/Newspaper |
author |
Sellen, E. O'Regan, Matthew Jakobsson, M. |
author_facet |
Sellen, E. O'Regan, Matthew Jakobsson, M. |
author_sort |
Sellen, E. |
title |
Spatial and temporal Arctic Ocean depositional regimes: a key to the evolution of ice drift and current patterns |
title_short |
Spatial and temporal Arctic Ocean depositional regimes: a key to the evolution of ice drift and current patterns |
title_full |
Spatial and temporal Arctic Ocean depositional regimes: a key to the evolution of ice drift and current patterns |
title_fullStr |
Spatial and temporal Arctic Ocean depositional regimes: a key to the evolution of ice drift and current patterns |
title_full_unstemmed |
Spatial and temporal Arctic Ocean depositional regimes: a key to the evolution of ice drift and current patterns |
title_sort |
spatial and temporal arctic ocean depositional regimes: a key to the evolution of ice drift and current patterns |
publishDate |
2010 |
url |
https://orca.cardiff.ac.uk/id/eprint/7540/ https://doi.org/10.1016/j.quascirev.2010.06.005 |
long_lat |
ENVELOPE(-120.000,-120.000,85.500,85.500) ENVELOPE(-165.000,-165.000,77.000,77.000) ENVELOPE(-20.000,-20.000,83.750,83.750) ENVELOPE(5.000,5.000,81.250,81.250) |
geographic |
Alpha Ridge Arctic Arctic Ocean Chukchi Borderland Morris Jesup Rise Yermak Plateau |
geographic_facet |
Alpha Ridge Arctic Arctic Ocean Chukchi Borderland Morris Jesup Rise Yermak Plateau |
genre |
alpha ridge Arctic Arctic Arctic Ocean Chukchi Lomonosov Ridge Magnetic susceptibility Yermak plateau |
genre_facet |
alpha ridge Arctic Arctic Arctic Ocean Chukchi Lomonosov Ridge Magnetic susceptibility Yermak plateau |
op_relation |
Sellen, E., O'Regan, Matthew and Jakobsson, M. 2010. Spatial and temporal Arctic Ocean depositional regimes: a key to the evolution of ice drift and current patterns. Quaternary Science Reviews 29 (25-26) , pp. 3644-3664. 10.1016/j.quascirev.2010.06.005 https://doi.org/10.1016/j.quascirev.2010.06.005 doi:10.1016/j.quascirev.2010.06.005 |
op_doi |
https://doi.org/10.1016/j.quascirev.2010.06.005 |
container_title |
Quaternary Science Reviews |
container_volume |
29 |
container_issue |
25-26 |
container_start_page |
3644 |
op_container_end_page |
3664 |
_version_ |
1766353139944914944 |