Pleistocene chronology of sediments from the Lomonosov Ridge, supplement to: O'Regan, Matthew; King, John W; Backman, Jan; Jakobsson, Martin; Pälike, Heiko; Moran, Kathryn; Heil, Chip; Sakamoto, Tatsuhiko; Cronin, Thomas M; Jordan, Richard William (2008): Constraints on the Pleistocene chronology of sediments from the Lomonosov Ridge. Paleoceanography, 23(1), PA1S19
Despite its importance in the global climate system, age-calibrated marine geologic records reflecting the evolution of glacial cycles through the Pleistocene are largely absent from the central Arctic Ocean. This is especially true for sediments older than 200 ka. Three sites cored during the Integ...
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ftdatacite:10.1594/pangaea.832427 2023-05-15T14:55:36+02:00 Pleistocene chronology of sediments from the Lomonosov Ridge, supplement to: O'Regan, Matthew; King, John W; Backman, Jan; Jakobsson, Martin; Pälike, Heiko; Moran, Kathryn; Heil, Chip; Sakamoto, Tatsuhiko; Cronin, Thomas M; Jordan, Richard William (2008): Constraints on the Pleistocene chronology of sediments from the Lomonosov Ridge. Paleoceanography, 23(1), PA1S19 O'Regan, Matthew King, John W Backman, Jan Jakobsson, Martin Pälike, Heiko Moran, Kathryn Heil, Chip Sakamoto, Tatsuhiko Cronin, Thomas M Jordan, Richard William 2008 application/zip https://dx.doi.org/10.1594/pangaea.832427 https://doi.pangaea.de/10.1594/PANGAEA.832427 en eng PANGAEA - Data Publisher for Earth & Environmental Science https://dx.doi.org/10.1029/2007pa001551 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 CC-BY Integrated Ocean Drilling Program / International Ocean Discovery Program IODP International Polar Year 2007-2008 IPY Collection article Supplementary Collection of Datasets 2008 ftdatacite https://doi.org/10.1594/pangaea.832427 https://doi.org/10.1029/2007pa001551 2021-11-05T12:55:41Z Despite its importance in the global climate system, age-calibrated marine geologic records reflecting the evolution of glacial cycles through the Pleistocene are largely absent from the central Arctic Ocean. This is especially true for sediments older than 200 ka. Three sites cored during the Integrated Ocean Drilling Program's Expedition 302, the Arctic Coring Expedition (ACEX), provide a 27 m continuous sedimentary section from the Lomonosov Ridge in the central Arctic Ocean. Two key biostratigraphic datums and constraints from the magnetic inclination data are used to anchor the chronology of these sediments back to the base of the Cobb Mountain subchron (1215 ka). Beyond 1215 ka, two best fitting geomagnetic models are used to investigate the nature of cyclostratigraphic change. Within this chronology we show that bulk and mineral magnetic properties of the sediments vary on predicted Milankovitch frequencies. These cyclic variations record "glacial" and "interglacial" modes of sediment deposition on the Lomonosov Ridge as evident in studies of ice-rafted debris and stable isotopic and faunal assemblages for the last two glacial cycles and were used to tune the age model. Potential errors, which largely arise from uncertainties in the nature of downhole paleomagnetic variability, and the choice of a tuning target are handled by defining an error envelope that is based on the best fitting cyclostratigraphic and geomagnetic solutions. : Data extracted in the frame of a joint ICSTI/PANGAEA IPY effort, see http://doi.pangaea.de/10.1594/PANGAEA.150150 Article in Journal/Newspaper Arctic Arctic Ocean International Polar Year IPY Lomonosov Ridge DataCite Metadata Store (German National Library of Science and Technology) Arctic Arctic Ocean |
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Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Integrated Ocean Drilling Program / International Ocean Discovery Program IODP International Polar Year 2007-2008 IPY |
spellingShingle |
Integrated Ocean Drilling Program / International Ocean Discovery Program IODP International Polar Year 2007-2008 IPY O'Regan, Matthew King, John W Backman, Jan Jakobsson, Martin Pälike, Heiko Moran, Kathryn Heil, Chip Sakamoto, Tatsuhiko Cronin, Thomas M Jordan, Richard William Pleistocene chronology of sediments from the Lomonosov Ridge, supplement to: O'Regan, Matthew; King, John W; Backman, Jan; Jakobsson, Martin; Pälike, Heiko; Moran, Kathryn; Heil, Chip; Sakamoto, Tatsuhiko; Cronin, Thomas M; Jordan, Richard William (2008): Constraints on the Pleistocene chronology of sediments from the Lomonosov Ridge. Paleoceanography, 23(1), PA1S19 |
topic_facet |
Integrated Ocean Drilling Program / International Ocean Discovery Program IODP International Polar Year 2007-2008 IPY |
description |
Despite its importance in the global climate system, age-calibrated marine geologic records reflecting the evolution of glacial cycles through the Pleistocene are largely absent from the central Arctic Ocean. This is especially true for sediments older than 200 ka. Three sites cored during the Integrated Ocean Drilling Program's Expedition 302, the Arctic Coring Expedition (ACEX), provide a 27 m continuous sedimentary section from the Lomonosov Ridge in the central Arctic Ocean. Two key biostratigraphic datums and constraints from the magnetic inclination data are used to anchor the chronology of these sediments back to the base of the Cobb Mountain subchron (1215 ka). Beyond 1215 ka, two best fitting geomagnetic models are used to investigate the nature of cyclostratigraphic change. Within this chronology we show that bulk and mineral magnetic properties of the sediments vary on predicted Milankovitch frequencies. These cyclic variations record "glacial" and "interglacial" modes of sediment deposition on the Lomonosov Ridge as evident in studies of ice-rafted debris and stable isotopic and faunal assemblages for the last two glacial cycles and were used to tune the age model. Potential errors, which largely arise from uncertainties in the nature of downhole paleomagnetic variability, and the choice of a tuning target are handled by defining an error envelope that is based on the best fitting cyclostratigraphic and geomagnetic solutions. : Data extracted in the frame of a joint ICSTI/PANGAEA IPY effort, see http://doi.pangaea.de/10.1594/PANGAEA.150150 |
format |
Article in Journal/Newspaper |
author |
O'Regan, Matthew King, John W Backman, Jan Jakobsson, Martin Pälike, Heiko Moran, Kathryn Heil, Chip Sakamoto, Tatsuhiko Cronin, Thomas M Jordan, Richard William |
author_facet |
O'Regan, Matthew King, John W Backman, Jan Jakobsson, Martin Pälike, Heiko Moran, Kathryn Heil, Chip Sakamoto, Tatsuhiko Cronin, Thomas M Jordan, Richard William |
author_sort |
O'Regan, Matthew |
title |
Pleistocene chronology of sediments from the Lomonosov Ridge, supplement to: O'Regan, Matthew; King, John W; Backman, Jan; Jakobsson, Martin; Pälike, Heiko; Moran, Kathryn; Heil, Chip; Sakamoto, Tatsuhiko; Cronin, Thomas M; Jordan, Richard William (2008): Constraints on the Pleistocene chronology of sediments from the Lomonosov Ridge. Paleoceanography, 23(1), PA1S19 |
title_short |
Pleistocene chronology of sediments from the Lomonosov Ridge, supplement to: O'Regan, Matthew; King, John W; Backman, Jan; Jakobsson, Martin; Pälike, Heiko; Moran, Kathryn; Heil, Chip; Sakamoto, Tatsuhiko; Cronin, Thomas M; Jordan, Richard William (2008): Constraints on the Pleistocene chronology of sediments from the Lomonosov Ridge. Paleoceanography, 23(1), PA1S19 |
title_full |
Pleistocene chronology of sediments from the Lomonosov Ridge, supplement to: O'Regan, Matthew; King, John W; Backman, Jan; Jakobsson, Martin; Pälike, Heiko; Moran, Kathryn; Heil, Chip; Sakamoto, Tatsuhiko; Cronin, Thomas M; Jordan, Richard William (2008): Constraints on the Pleistocene chronology of sediments from the Lomonosov Ridge. Paleoceanography, 23(1), PA1S19 |
title_fullStr |
Pleistocene chronology of sediments from the Lomonosov Ridge, supplement to: O'Regan, Matthew; King, John W; Backman, Jan; Jakobsson, Martin; Pälike, Heiko; Moran, Kathryn; Heil, Chip; Sakamoto, Tatsuhiko; Cronin, Thomas M; Jordan, Richard William (2008): Constraints on the Pleistocene chronology of sediments from the Lomonosov Ridge. Paleoceanography, 23(1), PA1S19 |
title_full_unstemmed |
Pleistocene chronology of sediments from the Lomonosov Ridge, supplement to: O'Regan, Matthew; King, John W; Backman, Jan; Jakobsson, Martin; Pälike, Heiko; Moran, Kathryn; Heil, Chip; Sakamoto, Tatsuhiko; Cronin, Thomas M; Jordan, Richard William (2008): Constraints on the Pleistocene chronology of sediments from the Lomonosov Ridge. Paleoceanography, 23(1), PA1S19 |
title_sort |
pleistocene chronology of sediments from the lomonosov ridge, supplement to: o'regan, matthew; king, john w; backman, jan; jakobsson, martin; pälike, heiko; moran, kathryn; heil, chip; sakamoto, tatsuhiko; cronin, thomas m; jordan, richard william (2008): constraints on the pleistocene chronology of sediments from the lomonosov ridge. paleoceanography, 23(1), pa1s19 |
publisher |
PANGAEA - Data Publisher for Earth & Environmental Science |
publishDate |
2008 |
url |
https://dx.doi.org/10.1594/pangaea.832427 https://doi.pangaea.de/10.1594/PANGAEA.832427 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean International Polar Year IPY Lomonosov Ridge |
genre_facet |
Arctic Arctic Ocean International Polar Year IPY Lomonosov Ridge |
op_relation |
https://dx.doi.org/10.1029/2007pa001551 |
op_rights |
Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/pangaea.832427 https://doi.org/10.1029/2007pa001551 |
_version_ |
1766327626919575552 |