globalchange  > 气候变化与战略
DOI: 10.1073/pnas.1214676110
论文题名:
Abrupt drainage cycles of the Fennoscandian Ice Sheet
作者: Soulet G.; Ménot G.; Bayon G.; Rostek F.; Ponzevera E.; Toucanne S.; Lericolais G.; Bard E.
刊名: Proceedings of the National Academy of Sciences of the United States of America
ISSN: 0027-8424
出版年: 2013
卷: 110, 期:17
起始页码: 6682
结束页码: 6687
语种: 英语
英文关键词: European hydrographic network ; Ice dynamics ; Meltwater routing
Scopus关键词: neodymium ; article ; climate ; deglaciation ; glaciation ; hydrology ; ice sheet ; lake ; priority journal ; Scandinavia ; Black Sea ; Carbon ; Finland ; Freezing ; Geologic Sediments ; Ice Cover ; Neodymium ; Rivers ; Scandinavia ; Water Movements
英文摘要: Continental ice sheets are a key component of the Earth's climate system, but their internal dynamics need to be further studied. Since the last deglaciation, the northern Eurasian Fennoscandian Ice Sheet (FIS) has been connected to the Black Sea (BS) watershed, making this basin a suitable location to investigate former ice-sheet dynamics. Here, from a core retrieved in the BS, we combine the use of neodymium isotopes, high-resolution elemental analysis, and biomarkers to trace changes in sediment provenance and river runoff. We reveal cyclic releases of meltwater originating from Lake Disna, a proglacial lake linked to the FIS during Heinrich Stadial 1. Regional interactions within the climate-lake-FIS system, linked to changes in the availability of subglacial water, led to abrupt drainage cycles of the FIS into the BS watershed. This phenomenon raised the BS water level by ∼100 m until the sill of the Bosphorus Strait was reached, flooding the vast northwestern BS shelf and deeply affecting the hydrology and circulation of the BS and, probably, of the Marmara and Aegean Seas.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/162397
Appears in Collections:气候变化与战略

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作者单位: Soulet, G., Aix Marseille Université, Centre National de la Recherche Scientifique, Institut de Recherche Pour le Développement, 13545 Aix-en-Provence cedex 04, France, Institut Français de Recherche Pour l'Exploitation de la Mer, Unité Recherche Géosciences Marines, 29280 Plouzané cedex, France; Ménot, G., Aix Marseille Université, Centre National de la Recherche Scientifique, Institut de Recherche Pour le Développement, 13545 Aix-en-Provence cedex 04, France; Bayon, G., Institut Français de Recherche Pour l'Exploitation de la Mer, Unité Recherche Géosciences Marines, 29280 Plouzané cedex, France; Rostek, F., Aix Marseille Université, Centre National de la Recherche Scientifique, Institut de Recherche Pour le Développement, 13545 Aix-en-Provence cedex 04, France; Ponzevera, E., Institut Français de Recherche Pour l'Exploitation de la Mer, Unité Recherche Géosciences Marines, 29280 Plouzané cedex, France; Toucanne, S., Institut Français de Recherche Pour l'Exploitation de la Mer, Unité Recherche Géosciences Marines, 29280 Plouzané cedex, France; Lericolais, G., Institut Français de Recherche Pour l'Exploitation de la Mer, Unité Recherche Géosciences Marines, 29280 Plouzané cedex, France; Bard, E., Aix Marseille Université, Centre National de la Recherche Scientifique, Institut de Recherche Pour le Développement, 13545 Aix-en-Provence cedex 04, France

Recommended Citation:
Soulet G.,Ménot G.,Bayon G.,et al. Abrupt drainage cycles of the Fennoscandian Ice Sheet[J]. Proceedings of the National Academy of Sciences of the United States of America,2013-01-01,110(17)
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