Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Dataset Open Access |
| Language: | en |
| Published: |
PANGAEA
2016
|
| Subjects: | |
| Online Access: | https://doi.org/10.1594/PANGAEA.865323 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1867168568705024000 |
|---|---|
| author | Tremblin, Maxime Hermoso, Michael Minoletti, Fabrice |
| author_facet | Tremblin, Maxime Hermoso, Michael Minoletti, Fabrice |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | The long-term cooling trend of the Cenozoic is punctuated by shorter-term climatic events, such as the inception of permanent ice sheets on Antarctica at the Eocene-Oligocene Transition (~33.7 Ma). Taking advantage of the excellent state of preservation of coccolith calcite in equatorial Atlantic deep-sea cores, we unveil progressive tropical warming in the Atlantic Ocean initiated 4 million years prior to Antarctic glaciation. Warming preceding glaciation may appear counterintuitive, but we argue that this long-term climatic precursor to the EOT reinforced cooling of austral high latitudes via the redistribution of heat at the surface of the oceans. We discuss this new prominent paleoceanographic and climatic feature in the context of overarching pCO2 decline and the establishment of an Antarctic circumpolar current. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_865323 |
| institution | PANGAEA |
| language | en |
| publishDate | 2016 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Eocene-Oligocene sea surface temperature and pCO2 estimates Tremblin, Maxime Hermoso, Michael Minoletti, Fabrice Ocean Drilling Program; ODP The long-term cooling trend of the Cenozoic is punctuated by shorter-term climatic events, such as the inception of permanent ice sheets on Antarctica at the Eocene-Oligocene Transition (~33.7 Ma). Taking advantage of the excellent state of preservation of coccolith calcite in equatorial Atlantic deep-sea cores, we unveil progressive tropical warming in the Atlantic Ocean initiated 4 million years prior to Antarctic glaciation. Warming preceding glaciation may appear counterintuitive, but we argue that this long-term climatic precursor to the EOT reinforced cooling of austral high latitudes via the redistribution of heat at the surface of the oceans. We discuss this new prominent paleoceanographic and climatic feature in the context of overarching pCO2 decline and the establishment of an Antarctic circumpolar current. |
| title | Eocene-Oligocene sea surface temperature and pCO2 estimates |
| topic | Ocean Drilling Program; ODP |
| url | https://doi.org/10.1594/PANGAEA.865323 |