Quaternary Sea-ice history in the Arctic Ocean based on a new Ostracode sea-ice proxy
Quaternary Science Reviews
By: T. M. Cronin, L. Gemery, W.M. Briggs, M. Jakobsson, L. Polyak, and E. M. Brouwers
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Abstract
Paleo-sea-ice history in the Arctic Ocean was reconstructed using the sea-ice dwelling ostracode Acetabulastoma arcticum from late Quaternary sediments from the Mendeleyev, Lomonosov, and Gakkel Ridges, the Morris Jesup Rise and the Yermak Plateau. Results suggest intermittently high levels of perennial sea ice in the central Arctic Ocean during Marine Isotope Stage (MIS) 3 (25-45 ka), minimal sea ice during the last deglacial (16-11 ka) and early Holocene thermal maximum (11-5 ka) and increasing sea ice during the mid-to-late Holocene (5-0 ka). Sediment core records from the Iceland and Rockall Plateaus show that perennial sea ice existed in these regions only during glacial intervals MIS 2, 4, and 6. These results show that sea ice exhibits complex temporal and spatial variability during different climatic regimes and that the development of modern perennial sea ice may be a relatively recent phenomenon. ?? 2010.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Quaternary Sea-ice history in the Arctic Ocean based on a new Ostracode sea-ice proxy |
| Series title | Quaternary Science Reviews |
| DOI | 10.1016/j.quascirev.2010.05.024 |
| Volume | 29 |
| Issue | 25-26 |
| Year Published | 2010 |
| Language | English |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Quaternary Science Reviews |
| First page | 3415 |
| Last page | 3429 |
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