The Cenozoic palaeoenvironment of the Arctic Ocean
The history of the Arctic Ocean during the Cenozoic era (0–65 million years ago) is largely unknown from direct evidence. Here we present a Cenozoic palaeoceanographic record constructed from >400 m of sediment core from a recent drilling expedition to the Lomonosov ridge in the Arctic Ocean. Our...
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Online Access: | https://orca.cardiff.ac.uk/id/eprint/10756/ https://doi.org/10.1038/nature04800 |
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ftunivcardiff:oai:https://orca.cardiff.ac.uk:10756 2023-05-15T13:37:52+02:00 The Cenozoic palaeoenvironment of the Arctic Ocean Moran, Kathryn Backman, Jan Brinkhuis, Henk Clemens, Steven C. Cronin, Thomas Dickens, Gerald R. Eynaud, Frédérique Gattacceca, Jérôme Jakobsson, Martin Jordan, Richard W. Kaminski, Michael King, John Koc, Nalan Krylov, Alexey Martinez, Nahysa Matthiessen, Jens McInroy, David Moore, Theodore C. Onodera, Jonaotaro O'Regan, Matthew Pälike, Heiko Rea, Brice Rio, Domenico Sakamoto, Tatsuhiko Smith, David C. Stein, Ruediger St John, Kristen Suto, Itsuki Suzuki, Noritoshi Takahashi, Kozo Watanabe, Mahito Yamamoto, Masanobu Farrell, John Frank, Martin Kubik, Peter Jokat, Wilfried Kristoffersen, Yngve 2006 https://orca.cardiff.ac.uk/id/eprint/10756/ https://doi.org/10.1038/nature04800 unknown NPG Moran, Kathryn, Backman, Jan, Brinkhuis, Henk, Clemens, Steven C., Cronin, Thomas, Dickens, Gerald R., Eynaud, Frédérique, Gattacceca, Jérôme, Jakobsson, Martin, Jordan, Richard W., Kaminski, Michael, King, John, Koc, Nalan, Krylov, Alexey, Martinez, Nahysa, Matthiessen, Jens, McInroy, David, Moore, Theodore C., Onodera, Jonaotaro, O'Regan, Matthew, Pälike, Heiko, Rea, Brice, Rio, Domenico, Sakamoto, Tatsuhiko, Smith, David C., Stein, Ruediger, St John, Kristen, Suto, Itsuki, Suzuki, Noritoshi, Takahashi, Kozo, Watanabe, Mahito, Yamamoto, Masanobu, Farrell, John, Frank, Martin, Kubik, Peter, Jokat, Wilfried and Kristoffersen, Yngve 2006. The Cenozoic palaeoenvironment of the Arctic Ocean. Nature 441 (7093) , pp. 601-605. 10.1038/nature04800 https://doi.org/10.1038/nature04800 doi:10.1038/nature04800 GC Oceanography QE Geology Article PeerReviewed 2006 ftunivcardiff https://doi.org/10.1038/nature04800 2022-09-25T20:17:42Z The history of the Arctic Ocean during the Cenozoic era (0–65 million years ago) is largely unknown from direct evidence. Here we present a Cenozoic palaeoceanographic record constructed from >400 m of sediment core from a recent drilling expedition to the Lomonosov ridge in the Arctic Ocean. Our record shows a palaeoenvironmental transition from a warm ‘greenhouse’ world, during the late Palaeocene and early Eocene epochs, to a colder ‘icehouse’ world influenced by sea ice and icebergs from the middle Eocene epoch to the present. For the most recent ~14 Myr, we find sedimentation rates of 1–2 cm per thousand years, in stark contrast to the substantially lower rates proposed in earlier studies; this record of the Neogene reveals cooling of the Arctic that was synchronous with the expansion of Greenland ice (~3.2 Myr ago) and East Antarctic ice (~14 Myr ago). We find evidence for the first occurrence of ice-rafted debris in the middle Eocene epoch (~45 Myr ago), some 35 Myr earlier than previously thought; fresh surface waters were present at ~49 Myr ago, before the onset of ice-rafted debris. Also, the temperatures of surface waters during the Palaeocene/Eocene thermal maximum (~55 Myr ago) appear to have been substantially warmer than previously estimated. The revised timing of the earliest Arctic cooling events coincides with those from Antarctica, supporting arguments for bipolar symmetry in climate change. Article in Journal/Newspaper Antarc* Antarctic Antarctica Arctic Arctic Arctic Ocean Climate change Greenland Iceberg* Iceberg* Lomonosov Ridge Sea ice Cardiff University: ORCA (Online Research @ Cardiff) Antarctic Arctic Arctic Ocean Greenland Nature 441 7093 601 605 |
institution |
Open Polar |
collection |
Cardiff University: ORCA (Online Research @ Cardiff) |
op_collection_id |
ftunivcardiff |
language |
unknown |
topic |
GC Oceanography QE Geology |
spellingShingle |
GC Oceanography QE Geology Moran, Kathryn Backman, Jan Brinkhuis, Henk Clemens, Steven C. Cronin, Thomas Dickens, Gerald R. Eynaud, Frédérique Gattacceca, Jérôme Jakobsson, Martin Jordan, Richard W. Kaminski, Michael King, John Koc, Nalan Krylov, Alexey Martinez, Nahysa Matthiessen, Jens McInroy, David Moore, Theodore C. Onodera, Jonaotaro O'Regan, Matthew Pälike, Heiko Rea, Brice Rio, Domenico Sakamoto, Tatsuhiko Smith, David C. Stein, Ruediger St John, Kristen Suto, Itsuki Suzuki, Noritoshi Takahashi, Kozo Watanabe, Mahito Yamamoto, Masanobu Farrell, John Frank, Martin Kubik, Peter Jokat, Wilfried Kristoffersen, Yngve The Cenozoic palaeoenvironment of the Arctic Ocean |
topic_facet |
GC Oceanography QE Geology |
description |
The history of the Arctic Ocean during the Cenozoic era (0–65 million years ago) is largely unknown from direct evidence. Here we present a Cenozoic palaeoceanographic record constructed from >400 m of sediment core from a recent drilling expedition to the Lomonosov ridge in the Arctic Ocean. Our record shows a palaeoenvironmental transition from a warm ‘greenhouse’ world, during the late Palaeocene and early Eocene epochs, to a colder ‘icehouse’ world influenced by sea ice and icebergs from the middle Eocene epoch to the present. For the most recent ~14 Myr, we find sedimentation rates of 1–2 cm per thousand years, in stark contrast to the substantially lower rates proposed in earlier studies; this record of the Neogene reveals cooling of the Arctic that was synchronous with the expansion of Greenland ice (~3.2 Myr ago) and East Antarctic ice (~14 Myr ago). We find evidence for the first occurrence of ice-rafted debris in the middle Eocene epoch (~45 Myr ago), some 35 Myr earlier than previously thought; fresh surface waters were present at ~49 Myr ago, before the onset of ice-rafted debris. Also, the temperatures of surface waters during the Palaeocene/Eocene thermal maximum (~55 Myr ago) appear to have been substantially warmer than previously estimated. The revised timing of the earliest Arctic cooling events coincides with those from Antarctica, supporting arguments for bipolar symmetry in climate change. |
format |
Article in Journal/Newspaper |
author |
Moran, Kathryn Backman, Jan Brinkhuis, Henk Clemens, Steven C. Cronin, Thomas Dickens, Gerald R. Eynaud, Frédérique Gattacceca, Jérôme Jakobsson, Martin Jordan, Richard W. Kaminski, Michael King, John Koc, Nalan Krylov, Alexey Martinez, Nahysa Matthiessen, Jens McInroy, David Moore, Theodore C. Onodera, Jonaotaro O'Regan, Matthew Pälike, Heiko Rea, Brice Rio, Domenico Sakamoto, Tatsuhiko Smith, David C. Stein, Ruediger St John, Kristen Suto, Itsuki Suzuki, Noritoshi Takahashi, Kozo Watanabe, Mahito Yamamoto, Masanobu Farrell, John Frank, Martin Kubik, Peter Jokat, Wilfried Kristoffersen, Yngve |
author_facet |
Moran, Kathryn Backman, Jan Brinkhuis, Henk Clemens, Steven C. Cronin, Thomas Dickens, Gerald R. Eynaud, Frédérique Gattacceca, Jérôme Jakobsson, Martin Jordan, Richard W. Kaminski, Michael King, John Koc, Nalan Krylov, Alexey Martinez, Nahysa Matthiessen, Jens McInroy, David Moore, Theodore C. Onodera, Jonaotaro O'Regan, Matthew Pälike, Heiko Rea, Brice Rio, Domenico Sakamoto, Tatsuhiko Smith, David C. Stein, Ruediger St John, Kristen Suto, Itsuki Suzuki, Noritoshi Takahashi, Kozo Watanabe, Mahito Yamamoto, Masanobu Farrell, John Frank, Martin Kubik, Peter Jokat, Wilfried Kristoffersen, Yngve |
author_sort |
Moran, Kathryn |
title |
The Cenozoic palaeoenvironment of the Arctic Ocean |
title_short |
The Cenozoic palaeoenvironment of the Arctic Ocean |
title_full |
The Cenozoic palaeoenvironment of the Arctic Ocean |
title_fullStr |
The Cenozoic palaeoenvironment of the Arctic Ocean |
title_full_unstemmed |
The Cenozoic palaeoenvironment of the Arctic Ocean |
title_sort |
cenozoic palaeoenvironment of the arctic ocean |
publisher |
NPG |
publishDate |
2006 |
url |
https://orca.cardiff.ac.uk/id/eprint/10756/ https://doi.org/10.1038/nature04800 |
geographic |
Antarctic Arctic Arctic Ocean Greenland |
geographic_facet |
Antarctic Arctic Arctic Ocean Greenland |
genre |
Antarc* Antarctic Antarctica Arctic Arctic Arctic Ocean Climate change Greenland Iceberg* Iceberg* Lomonosov Ridge Sea ice |
genre_facet |
Antarc* Antarctic Antarctica Arctic Arctic Arctic Ocean Climate change Greenland Iceberg* Iceberg* Lomonosov Ridge Sea ice |
op_relation |
Moran, Kathryn, Backman, Jan, Brinkhuis, Henk, Clemens, Steven C., Cronin, Thomas, Dickens, Gerald R., Eynaud, Frédérique, Gattacceca, Jérôme, Jakobsson, Martin, Jordan, Richard W., Kaminski, Michael, King, John, Koc, Nalan, Krylov, Alexey, Martinez, Nahysa, Matthiessen, Jens, McInroy, David, Moore, Theodore C., Onodera, Jonaotaro, O'Regan, Matthew, Pälike, Heiko, Rea, Brice, Rio, Domenico, Sakamoto, Tatsuhiko, Smith, David C., Stein, Ruediger, St John, Kristen, Suto, Itsuki, Suzuki, Noritoshi, Takahashi, Kozo, Watanabe, Mahito, Yamamoto, Masanobu, Farrell, John, Frank, Martin, Kubik, Peter, Jokat, Wilfried and Kristoffersen, Yngve 2006. The Cenozoic palaeoenvironment of the Arctic Ocean. Nature 441 (7093) , pp. 601-605. 10.1038/nature04800 https://doi.org/10.1038/nature04800 doi:10.1038/nature04800 |
op_doi |
https://doi.org/10.1038/nature04800 |
container_title |
Nature |
container_volume |
441 |
container_issue |
7093 |
container_start_page |
601 |
op_container_end_page |
605 |
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1766098527875760128 |