A 3.6 Ma sedimentological, geochemical and palynological record of sediment core ICDP5011-1 in Lake Elgygytgyn, NE Russia
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| Formato: | Dataset Open Access |
| Lenguaje: | en |
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PANGAEA
2013
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| author | Brigham-Grette, Julie Melles, Martin Minyuk, Pavel S Andreev, Andrei A Tarasov, Pavel E DeConto, Robert M König, Sebastian Nowaczyk, Norbert R Wennrich, Volker Rosén, Peter Haltia-Hovi, Eeva Cook, Timothy L Gebhardt, Andrea Catalina Meyer-Jacob, Carsten Snyder, Jeffrey A Herzschuh, Ulrike |
| author_facet | Brigham-Grette, Julie Melles, Martin Minyuk, Pavel S Andreev, Andrei A Tarasov, Pavel E DeConto, Robert M König, Sebastian Nowaczyk, Norbert R Wennrich, Volker Rosén, Peter Haltia-Hovi, Eeva Cook, Timothy L Gebhardt, Andrea Catalina Meyer-Jacob, Carsten Snyder, Jeffrey A Herzschuh, Ulrike |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Understanding the evolution of Arctic polar climate from the protracted warmth of the middle Pliocene into the earliest glacial cycles in the Northern Hemisphere has been hindered by the lack of continuous, highly resolved Arctic time series. Evidence from Lake El'gygytgyn, NE Arctic Russia, shows that 3.6-3.4 million years ago, summer temperatures were ~8°C warmer than today when pCO2 was ~400 ppm. Multiproxy evidence suggests extreme warmth and polar amplification during the middle Pliocene, sudden stepped cooling events during the Pliocene-Pleistocene transition, and warmer than present Arctic summers until ~2.2 Ma, after the onset of Northern Hemispheric glaciation. Our data are consistent with sea-level records and other proxies indicating that Arctic cooling was insufficient to support large-scale ice sheets until the early Pleistocene. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_808834 |
| institution | PANGAEA |
| language | en |
| publishDate | 2013 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | A 3.6 Ma sedimentological, geochemical and palynological record of sediment core ICDP5011-1 in Lake Elgygytgyn, NE Russia Brigham-Grette, Julie Melles, Martin Minyuk, Pavel S Andreev, Andrei A Tarasov, Pavel E DeConto, Robert M König, Sebastian Nowaczyk, Norbert R Wennrich, Volker Rosén, Peter Haltia-Hovi, Eeva Cook, Timothy L Gebhardt, Andrea Catalina Meyer-Jacob, Carsten Snyder, Jeffrey A Herzschuh, Ulrike COMPCORE; Composite Core; ELGYGYTGYN; Elgygytgyn crater lake, Sibiria, Russia; ICDP_Elgygytgyn-Drilling-Project; ICDP5011-1; Lake Elgygytgyn - Climate History of the Arctic since 3.6 Million Years; Sampling on land Understanding the evolution of Arctic polar climate from the protracted warmth of the middle Pliocene into the earliest glacial cycles in the Northern Hemisphere has been hindered by the lack of continuous, highly resolved Arctic time series. Evidence from Lake El'gygytgyn, NE Arctic Russia, shows that 3.6-3.4 million years ago, summer temperatures were ~8°C warmer than today when pCO2 was ~400 ppm. Multiproxy evidence suggests extreme warmth and polar amplification during the middle Pliocene, sudden stepped cooling events during the Pliocene-Pleistocene transition, and warmer than present Arctic summers until ~2.2 Ma, after the onset of Northern Hemispheric glaciation. Our data are consistent with sea-level records and other proxies indicating that Arctic cooling was insufficient to support large-scale ice sheets until the early Pleistocene. |
| title | A 3.6 Ma sedimentological, geochemical and palynological record of sediment core ICDP5011-1 in Lake Elgygytgyn, NE Russia |
| topic | COMPCORE; Composite Core; ELGYGYTGYN; Elgygytgyn crater lake, Sibiria, Russia; ICDP_Elgygytgyn-Drilling-Project; ICDP5011-1; Lake Elgygytgyn - Climate History of the Arctic since 3.6 Million Years; Sampling on land |
| url | https://doi.org/10.1594/PANGAEA.808834 |