Dansgaard-Oeschger and heinrich event imprints in Alboran Sea paleotemperatures
Past sea surface temperature (SST) evolution in the Alboran Sea (western Mediterranean) during the last 50,000 years has been inferred from the study of C-37 alkenones in International Marine Global Change Studies MD952043 core. This record has a time resolution of similar to 200 years allowing the...
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Amer Geophysical Union
1999
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Online Access: | https://doi.org/10.1029/1999PA900044 https://archimer.ifremer.fr/doc/00239/35044/36810.pdf https://archimer.ifremer.fr/doc/00239/35044/ |
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fttriple:oai:gotriple.eu:10670/1.ldhhqp 2023-05-15T16:00:01+02:00 Dansgaard-Oeschger and heinrich event imprints in Alboran Sea paleotemperatures Cacho, Isabel Grimalt, Joan O. Pelejero, Carles Canals, Miquel Sierro, Francisco Flores, Jose Abel Shackleton, Nicholas J. 1999-01-01 https://doi.org/10.1029/1999PA900044 https://archimer.ifremer.fr/doc/00239/35044/36810.pdf https://archimer.ifremer.fr/doc/00239/35044/ en eng Amer Geophysical Union doi:10.1029/1999PA900044 10670/1.ldhhqp https://archimer.ifremer.fr/doc/00239/35044/36810.pdf https://archimer.ifremer.fr/doc/00239/35044/ other Archimer, archive institutionnelle de l'Ifremer Paleoceanography (0883-8305) (Amer Geophysical Union), 1999-12 , Vol. 14 , N. 6 , P. 698-705 envir geo Text https://vocabularies.coar-repositories.org/resource_types/c_18cf/ 1999 fttriple https://doi.org/10.1029/1999PA900044 2023-01-22T18:36:26Z Past sea surface temperature (SST) evolution in the Alboran Sea (western Mediterranean) during the last 50,000 years has been inferred from the study of C-37 alkenones in International Marine Global Change Studies MD952043 core. This record has a time resolution of similar to 200 years allowing the study of millennial-scale and even shorter climatic changes. The observed SST curve displays characteristic sequences of extremely rapid warming and cooling events along the glacial period. Comparison of this Alboran record with delta(18)O from Greenland ice (Greenland Ice Sheet Project 2 core) shows a strong parallelism between these SST oscillations and the Dansgaard-Oeschger events. Five prominent cooling episodes standing out in the SST profile are accompanied by an anomalous high abundance of Neogloboquadrina pachyderma sinistral which is confined to the duration of these cold intervals. These features and the isotopic record reflect drastic changes in the surface hydrography of the Alboran Sea in association with Heinrich events H1-5. Text Dansgaard-Oeschger events Greenland Greenland Ice Sheet Project Ice Sheet Neogloboquadrina pachyderma Unknown Greenland Paleoceanography 14 6 698 705 |
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envir geo Cacho, Isabel Grimalt, Joan O. Pelejero, Carles Canals, Miquel Sierro, Francisco Flores, Jose Abel Shackleton, Nicholas J. Dansgaard-Oeschger and heinrich event imprints in Alboran Sea paleotemperatures |
topic_facet |
envir geo |
description |
Past sea surface temperature (SST) evolution in the Alboran Sea (western Mediterranean) during the last 50,000 years has been inferred from the study of C-37 alkenones in International Marine Global Change Studies MD952043 core. This record has a time resolution of similar to 200 years allowing the study of millennial-scale and even shorter climatic changes. The observed SST curve displays characteristic sequences of extremely rapid warming and cooling events along the glacial period. Comparison of this Alboran record with delta(18)O from Greenland ice (Greenland Ice Sheet Project 2 core) shows a strong parallelism between these SST oscillations and the Dansgaard-Oeschger events. Five prominent cooling episodes standing out in the SST profile are accompanied by an anomalous high abundance of Neogloboquadrina pachyderma sinistral which is confined to the duration of these cold intervals. These features and the isotopic record reflect drastic changes in the surface hydrography of the Alboran Sea in association with Heinrich events H1-5. |
format |
Text |
author |
Cacho, Isabel Grimalt, Joan O. Pelejero, Carles Canals, Miquel Sierro, Francisco Flores, Jose Abel Shackleton, Nicholas J. |
author_facet |
Cacho, Isabel Grimalt, Joan O. Pelejero, Carles Canals, Miquel Sierro, Francisco Flores, Jose Abel Shackleton, Nicholas J. |
author_sort |
Cacho, Isabel |
title |
Dansgaard-Oeschger and heinrich event imprints in Alboran Sea paleotemperatures |
title_short |
Dansgaard-Oeschger and heinrich event imprints in Alboran Sea paleotemperatures |
title_full |
Dansgaard-Oeschger and heinrich event imprints in Alboran Sea paleotemperatures |
title_fullStr |
Dansgaard-Oeschger and heinrich event imprints in Alboran Sea paleotemperatures |
title_full_unstemmed |
Dansgaard-Oeschger and heinrich event imprints in Alboran Sea paleotemperatures |
title_sort |
dansgaard-oeschger and heinrich event imprints in alboran sea paleotemperatures |
publisher |
Amer Geophysical Union |
publishDate |
1999 |
url |
https://doi.org/10.1029/1999PA900044 https://archimer.ifremer.fr/doc/00239/35044/36810.pdf https://archimer.ifremer.fr/doc/00239/35044/ |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Dansgaard-Oeschger events Greenland Greenland Ice Sheet Project Ice Sheet Neogloboquadrina pachyderma |
genre_facet |
Dansgaard-Oeschger events Greenland Greenland Ice Sheet Project Ice Sheet Neogloboquadrina pachyderma |
op_source |
Archimer, archive institutionnelle de l'Ifremer Paleoceanography (0883-8305) (Amer Geophysical Union), 1999-12 , Vol. 14 , N. 6 , P. 698-705 |
op_relation |
doi:10.1029/1999PA900044 10670/1.ldhhqp https://archimer.ifremer.fr/doc/00239/35044/36810.pdf https://archimer.ifremer.fr/doc/00239/35044/ |
op_rights |
other |
op_doi |
https://doi.org/10.1029/1999PA900044 |
container_title |
Paleoceanography |
container_volume |
14 |
container_issue |
6 |
container_start_page |
698 |
op_container_end_page |
705 |
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1766395898686865408 |