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| Main Authors: | , , , , |
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| Format: | Dataset Open Access |
| Language: | en |
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PANGAEA
2007
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| Online Access: | https://doi.org/10.1594/PANGAEA.797464 |
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| _version_ | 1867170464140361728 |
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| author | Arz, Helge Wolfgang Lamy, Frank Ganopolski, Andrey Nowaczyk, Norbert R Pätzold, Jürgen |
| author_facet | Arz, Helge Wolfgang Lamy, Frank Ganopolski, Andrey Nowaczyk, Norbert R Pätzold, Jürgen |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Based on a radiocarbon and paleomagnetically dated sediment record from the northern Red Sea and the exceptional sensitivity of the regional changes in the oxygen isotope composition of sea water to the sea-level-dependent water exchange with the Indian Ocean, we provide a new global sea-level reconstruction spanning the last glacial period. The sea-level record has been extracted from the temperature-corrected benthic stable oxygen isotopes using coral-based sea-level data as constraints for the sea-level/oxygen isotope relationship. Although, the general features of this millennial-scale sea-level records have strong similarities to the rather symmetric and gradual Southern Hemisphere climate patterns, we observe, in constrast to previous findings, pronounced sea level rises of up to 25 m to generally correspond with Northern Hemisphere warmings as recorded in Greenland ice-core interstadial intervals whereas sea-level lowstands mostly occur during cold phases. Corroborated by CLIMBER-2 model results, the close connection of millennial-scale sea-level changes to Northern Hemisphere temperature variations indicates a primary climatic control on the mass balance of the major Northern Hemisphere ice sheets and does not require a considerable Antarctic contribution. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_797464 |
| institution | PANGAEA |
| language | en |
| publishDate | 2007 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Radiocarbon dating, oxygen isotopes, and sea-level reconstruction of sediment core GeoB5844-2 from the northern end of the Red Sea Arz, Helge Wolfgang Lamy, Frank Ganopolski, Andrey Nowaczyk, Norbert R Pätzold, Jürgen Center for Marine Environmental Sciences; GeoB5844-2; Gravity corer (Kiel type); M44/3; MARUM; Meteor (1986); Northern Red Sea; SL Based on a radiocarbon and paleomagnetically dated sediment record from the northern Red Sea and the exceptional sensitivity of the regional changes in the oxygen isotope composition of sea water to the sea-level-dependent water exchange with the Indian Ocean, we provide a new global sea-level reconstruction spanning the last glacial period. The sea-level record has been extracted from the temperature-corrected benthic stable oxygen isotopes using coral-based sea-level data as constraints for the sea-level/oxygen isotope relationship. Although, the general features of this millennial-scale sea-level records have strong similarities to the rather symmetric and gradual Southern Hemisphere climate patterns, we observe, in constrast to previous findings, pronounced sea level rises of up to 25 m to generally correspond with Northern Hemisphere warmings as recorded in Greenland ice-core interstadial intervals whereas sea-level lowstands mostly occur during cold phases. Corroborated by CLIMBER-2 model results, the close connection of millennial-scale sea-level changes to Northern Hemisphere temperature variations indicates a primary climatic control on the mass balance of the major Northern Hemisphere ice sheets and does not require a considerable Antarctic contribution. |
| title | Radiocarbon dating, oxygen isotopes, and sea-level reconstruction of sediment core GeoB5844-2 from the northern end of the Red Sea |
| topic | Center for Marine Environmental Sciences; GeoB5844-2; Gravity corer (Kiel type); M44/3; MARUM; Meteor (1986); Northern Red Sea; SL |
| url | https://doi.org/10.1594/PANGAEA.797464 |