Stable isotope analysis of benthic foraminifera and sedimentology on ODP Site 162-984
Sediments recovered at ODP Site 984 on the Reykjanes Ridge provided multicentennial-scale records (SST, planktic and benthic delta18O, IRD and magnetic susceptibility) of Late Pliocene climate change over the onset of Northern Hemisphere glaciation (NHG), 2.95-2.82 Ma. Short-term climate variations...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.484066 2023-05-15T17:31:18+02:00 Stable isotope analysis of benthic foraminifera and sedimentology on ODP Site 162-984 Bartoli, Gretta Sarnthein, Michael Weinelt, Mara MEDIAN LATITUDE: 61.425302 * MEDIAN LONGITUDE: -24.082490 * SOUTH-BOUND LATITUDE: 61.425300 * WEST-BOUND LONGITUDE: -24.082500 * NORTH-BOUND LATITUDE: 61.425317 * EAST-BOUND LONGITUDE: -24.082417 * DATE/TIME START: 1995-07-24T00:00:00 * DATE/TIME END: 1995-07-29T00:00:00 2006-07-13 application/zip, 8 datasets https://doi.pangaea.de/10.1594/PANGAEA.484066 https://doi.org/10.1594/PANGAEA.484066 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.484066 https://doi.org/10.1594/PANGAEA.484066 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Bartoli, Gretta; Sarnthein, Michael; Weinelt, Mara (2006): Late Pliocene millennial-scale climate variability in the northern North Atlantic prior to and after the onset of Northern Hemisphere glaciation. Paleoceanography, 21(4), PA4205, https://doi.org/10.1029/2005PA001185 162-984 162-984B COMPCORE Composite Core DRILL Drilling/drill rig Impact of Gateways on Ocean Circulation Climate and Evolution Joides Resolution Leg162 North Atlantic Ocean Ocean Drilling Program OceanGateways Ocean Gateways Oceanpassagen ODP Dataset 2006 ftpangaea https://doi.org/10.1594/PANGAEA.484066 https://doi.org/10.1029/2005PA001185 2023-01-20T07:30:59Z Sediments recovered at ODP Site 984 on the Reykjanes Ridge provided multicentennial-scale records (SST, planktic and benthic delta18O, IRD and magnetic susceptibility) of Late Pliocene climate change over the onset of Northern Hemisphere glaciation (NHG), 2.95-2.82 Ma. Short-term climate variations prior and after the onset of continent-wide glaciation were compared to test the hypothesis, whether Dansgaard-Oeschger (DO) cycles may have been triggered by continental ice breakouts. By means of spectral analyses for two selected interglacial stages prior to and after NHG (G15 and G1), we found that climate variability resembled that of the Holocene and the mid-Pliocene warm period. In contrast, DO-like periodicities near 1470, 2900, and 4400 yr indeed only occurred in glacial stages after the onset of NHG (G14, G6, and 104), but hardly in stage G20 prior to the onset. These results suggest a causal link between DO cycles and the Late Pliocene onset of major NHG and ice breakouts in the North Atlantic. This data set provides all primary data and spectral analysis related to this scientific work. Dataset North Atlantic PANGAEA - Data Publisher for Earth & Environmental Science Reykjanes ENVELOPE(-22.250,-22.250,65.467,65.467) ENVELOPE(-24.082500,-24.082417,61.425317,61.425300) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
162-984 162-984B COMPCORE Composite Core DRILL Drilling/drill rig Impact of Gateways on Ocean Circulation Climate and Evolution Joides Resolution Leg162 North Atlantic Ocean Ocean Drilling Program OceanGateways Ocean Gateways Oceanpassagen ODP |
spellingShingle |
162-984 162-984B COMPCORE Composite Core DRILL Drilling/drill rig Impact of Gateways on Ocean Circulation Climate and Evolution Joides Resolution Leg162 North Atlantic Ocean Ocean Drilling Program OceanGateways Ocean Gateways Oceanpassagen ODP Bartoli, Gretta Sarnthein, Michael Weinelt, Mara Stable isotope analysis of benthic foraminifera and sedimentology on ODP Site 162-984 |
topic_facet |
162-984 162-984B COMPCORE Composite Core DRILL Drilling/drill rig Impact of Gateways on Ocean Circulation Climate and Evolution Joides Resolution Leg162 North Atlantic Ocean Ocean Drilling Program OceanGateways Ocean Gateways Oceanpassagen ODP |
description |
Sediments recovered at ODP Site 984 on the Reykjanes Ridge provided multicentennial-scale records (SST, planktic and benthic delta18O, IRD and magnetic susceptibility) of Late Pliocene climate change over the onset of Northern Hemisphere glaciation (NHG), 2.95-2.82 Ma. Short-term climate variations prior and after the onset of continent-wide glaciation were compared to test the hypothesis, whether Dansgaard-Oeschger (DO) cycles may have been triggered by continental ice breakouts. By means of spectral analyses for two selected interglacial stages prior to and after NHG (G15 and G1), we found that climate variability resembled that of the Holocene and the mid-Pliocene warm period. In contrast, DO-like periodicities near 1470, 2900, and 4400 yr indeed only occurred in glacial stages after the onset of NHG (G14, G6, and 104), but hardly in stage G20 prior to the onset. These results suggest a causal link between DO cycles and the Late Pliocene onset of major NHG and ice breakouts in the North Atlantic. This data set provides all primary data and spectral analysis related to this scientific work. |
format |
Dataset |
author |
Bartoli, Gretta Sarnthein, Michael Weinelt, Mara |
author_facet |
Bartoli, Gretta Sarnthein, Michael Weinelt, Mara |
author_sort |
Bartoli, Gretta |
title |
Stable isotope analysis of benthic foraminifera and sedimentology on ODP Site 162-984 |
title_short |
Stable isotope analysis of benthic foraminifera and sedimentology on ODP Site 162-984 |
title_full |
Stable isotope analysis of benthic foraminifera and sedimentology on ODP Site 162-984 |
title_fullStr |
Stable isotope analysis of benthic foraminifera and sedimentology on ODP Site 162-984 |
title_full_unstemmed |
Stable isotope analysis of benthic foraminifera and sedimentology on ODP Site 162-984 |
title_sort |
stable isotope analysis of benthic foraminifera and sedimentology on odp site 162-984 |
publisher |
PANGAEA |
publishDate |
2006 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.484066 https://doi.org/10.1594/PANGAEA.484066 |
op_coverage |
MEDIAN LATITUDE: 61.425302 * MEDIAN LONGITUDE: -24.082490 * SOUTH-BOUND LATITUDE: 61.425300 * WEST-BOUND LONGITUDE: -24.082500 * NORTH-BOUND LATITUDE: 61.425317 * EAST-BOUND LONGITUDE: -24.082417 * DATE/TIME START: 1995-07-24T00:00:00 * DATE/TIME END: 1995-07-29T00:00:00 |
long_lat |
ENVELOPE(-22.250,-22.250,65.467,65.467) ENVELOPE(-24.082500,-24.082417,61.425317,61.425300) |
geographic |
Reykjanes |
geographic_facet |
Reykjanes |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Supplement to: Bartoli, Gretta; Sarnthein, Michael; Weinelt, Mara (2006): Late Pliocene millennial-scale climate variability in the northern North Atlantic prior to and after the onset of Northern Hemisphere glaciation. Paleoceanography, 21(4), PA4205, https://doi.org/10.1029/2005PA001185 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.484066 https://doi.org/10.1594/PANGAEA.484066 |
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.484066 https://doi.org/10.1029/2005PA001185 |
_version_ |
1766128811404951552 |