The Cenozoic palaeoenvironment of the Arctic Ocean
The Cenozoic history (0 to 65 million years, Myr, ago) of the Arctic Ocean is largely unknown from direct evidence. Here we present the first Cenozoic palaeoceanographic record constructed from > 400 m of core from a recent drilling expedition to the Lomonosov Ridge. Our record shows a palaeoenvi...
Published in: | Nature |
---|---|
Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
2006
|
Subjects: | |
Online Access: | https://epic.awi.de/id/eprint/13136/ https://doi.org/10.1038/nature04800 https://hdl.handle.net/10013/epic.23528 |
id |
ftawi:oai:epic.awi.de:13136 |
---|---|
record_format |
openpolar |
spelling |
ftawi:oai:epic.awi.de:13136 2023-09-05T13:15:02+02:00 The Cenozoic palaeoenvironment of the Arctic Ocean Moran, K. Backman, J. Brinkhuis, H. Clemens, S. C. Cronin, T. Dickens, G. R. Eynaud, F. Gattacceca, J. Jakobsson, M. Jordan, R. W. Kaminski, M. King, J. Koc, N. Krylov, A. Martinez, N. Matthießen, Jens McInroy, D. Moore, T. C. Onodera, J. O'Regan, A. M. Pälike, H. Rea, B. Rio, D. Sakamoto, T. Smith, D. C. Stein, Rüdiger St. John, K. Suto, I. Suzuki, N. Takahashi, K. Watanabe, M. Yamamoto, M. Frank, M. Jokat, Wilfried Kristoffersen, Y. 2006 https://epic.awi.de/id/eprint/13136/ https://doi.org/10.1038/nature04800 https://hdl.handle.net/10013/epic.23528 unknown Moran, K. , Backman, J. , Brinkhuis, H. , Clemens, S. C. , Cronin, T. , Dickens, G. R. , Eynaud, F. , Gattacceca, J. , Jakobsson, M. , Jordan, R. W. , Kaminski, M. , King, J. , Koc, N. , Krylov, A. , Martinez, N. , Matthießen, J. orcid:0000-0002-6952-2494 , McInroy, D. , Moore, T. C. , Onodera, J. , O'Regan, A. M. , Pälike, H. , Rea, B. , Rio, D. , Sakamoto, T. , Smith, D. C. , Stein, R. orcid:0000-0002-4453-9564 , St. John, K. , Suto, I. , Suzuki, N. , Takahashi, K. , Watanabe, M. , Yamamoto, M. , Frank, M. , Jokat, W. orcid:0000-0002-7793-5854 and Kristoffersen, Y. (2006) The Cenozoic palaeoenvironment of the Arctic Ocean , Nature, 441 , pp. 601-605 . doi:10.1038/nature04800 <https://doi.org/10.1038/nature04800> , hdl:10013/epic.23528 EPIC3Nature, 441, pp. 601-605 Article isiRev 2006 ftawi https://doi.org/10.1038/nature04800 2023-08-22T19:50:23Z The Cenozoic history (0 to 65 million years, Myr, ago) of the Arctic Ocean is largely unknown from direct evidence. Here we present the first Cenozoic palaeoceanographic record constructed from > 400 m of core from a recent drilling expedition to the Lomonosov Ridge. Our record shows a palaeoenvironmental transition from a warm greenhouse world, of the latest Palaeocene and early Eocene, to an icehouse world influenced by sea ice and icebergs from the middle Eocene to the present. We show: 1-2 cm per thousand years (ka) sedimentation rates occurred from the middle Miocene - Holocene (~18-0 Myr) in stark contrast to rates proposed in earlier studies; the first occurrence of ice-rafted debris (IRD) is in the middle Eocene (~45 Myr), ~35 Myr earlier than previously thought; prior to the IRD, fresh surface waters were present at ~49 Myr; and warm surface waters, ~10° warmer than previous estimates, occurred during the Palaeocene Eocene Thermal Maximum (PETM). The revised timing of Arctic cooling events coincides with those from Antarctica, supporting arguments for bi-polar symmetry in climate change. Article in Journal/Newspaper Antarc* Antarctica Arctic Arctic Arctic Ocean Climate change Iceberg* Lomonosov Ridge Sea ice Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Arctic Arctic Ocean Nature 441 7093 601 605 |
institution |
Open Polar |
collection |
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
The Cenozoic history (0 to 65 million years, Myr, ago) of the Arctic Ocean is largely unknown from direct evidence. Here we present the first Cenozoic palaeoceanographic record constructed from > 400 m of core from a recent drilling expedition to the Lomonosov Ridge. Our record shows a palaeoenvironmental transition from a warm greenhouse world, of the latest Palaeocene and early Eocene, to an icehouse world influenced by sea ice and icebergs from the middle Eocene to the present. We show: 1-2 cm per thousand years (ka) sedimentation rates occurred from the middle Miocene - Holocene (~18-0 Myr) in stark contrast to rates proposed in earlier studies; the first occurrence of ice-rafted debris (IRD) is in the middle Eocene (~45 Myr), ~35 Myr earlier than previously thought; prior to the IRD, fresh surface waters were present at ~49 Myr; and warm surface waters, ~10° warmer than previous estimates, occurred during the Palaeocene Eocene Thermal Maximum (PETM). The revised timing of Arctic cooling events coincides with those from Antarctica, supporting arguments for bi-polar symmetry in climate change. |
format |
Article in Journal/Newspaper |
author |
Moran, K. Backman, J. Brinkhuis, H. Clemens, S. C. Cronin, T. Dickens, G. R. Eynaud, F. Gattacceca, J. Jakobsson, M. Jordan, R. W. Kaminski, M. King, J. Koc, N. Krylov, A. Martinez, N. Matthießen, Jens McInroy, D. Moore, T. C. Onodera, J. O'Regan, A. M. Pälike, H. Rea, B. Rio, D. Sakamoto, T. Smith, D. C. Stein, Rüdiger St. John, K. Suto, I. Suzuki, N. Takahashi, K. Watanabe, M. Yamamoto, M. Frank, M. Jokat, Wilfried Kristoffersen, Y. |
spellingShingle |
Moran, K. Backman, J. Brinkhuis, H. Clemens, S. C. Cronin, T. Dickens, G. R. Eynaud, F. Gattacceca, J. Jakobsson, M. Jordan, R. W. Kaminski, M. King, J. Koc, N. Krylov, A. Martinez, N. Matthießen, Jens McInroy, D. Moore, T. C. Onodera, J. O'Regan, A. M. Pälike, H. Rea, B. Rio, D. Sakamoto, T. Smith, D. C. Stein, Rüdiger St. John, K. Suto, I. Suzuki, N. Takahashi, K. Watanabe, M. Yamamoto, M. Frank, M. Jokat, Wilfried Kristoffersen, Y. The Cenozoic palaeoenvironment of the Arctic Ocean |
author_facet |
Moran, K. Backman, J. Brinkhuis, H. Clemens, S. C. Cronin, T. Dickens, G. R. Eynaud, F. Gattacceca, J. Jakobsson, M. Jordan, R. W. Kaminski, M. King, J. Koc, N. Krylov, A. Martinez, N. Matthießen, Jens McInroy, D. Moore, T. C. Onodera, J. O'Regan, A. M. Pälike, H. Rea, B. Rio, D. Sakamoto, T. Smith, D. C. Stein, Rüdiger St. John, K. Suto, I. Suzuki, N. Takahashi, K. Watanabe, M. Yamamoto, M. Frank, M. Jokat, Wilfried Kristoffersen, Y. |
author_sort |
Moran, K. |
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 |
publishDate |
2006 |
url |
https://epic.awi.de/id/eprint/13136/ https://doi.org/10.1038/nature04800 https://hdl.handle.net/10013/epic.23528 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Antarc* Antarctica Arctic Arctic Arctic Ocean Climate change Iceberg* Lomonosov Ridge Sea ice |
genre_facet |
Antarc* Antarctica Arctic Arctic Arctic Ocean Climate change Iceberg* Lomonosov Ridge Sea ice |
op_source |
EPIC3Nature, 441, pp. 601-605 |
op_relation |
Moran, K. , Backman, J. , Brinkhuis, H. , Clemens, S. C. , Cronin, T. , Dickens, G. R. , Eynaud, F. , Gattacceca, J. , Jakobsson, M. , Jordan, R. W. , Kaminski, M. , King, J. , Koc, N. , Krylov, A. , Martinez, N. , Matthießen, J. orcid:0000-0002-6952-2494 , McInroy, D. , Moore, T. C. , Onodera, J. , O'Regan, A. M. , Pälike, H. , Rea, B. , Rio, D. , Sakamoto, T. , Smith, D. C. , Stein, R. orcid:0000-0002-4453-9564 , St. John, K. , Suto, I. , Suzuki, N. , Takahashi, K. , Watanabe, M. , Yamamoto, M. , Frank, M. , Jokat, W. orcid:0000-0002-7793-5854 and Kristoffersen, Y. (2006) The Cenozoic palaeoenvironment of the Arctic Ocean , Nature, 441 , pp. 601-605 . doi:10.1038/nature04800 <https://doi.org/10.1038/nature04800> , hdl:10013/epic.23528 |
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 |
_version_ |
1776196891449491456 |