Arctic Ocean glacial history

QUATERNARY SCIENCE REVIEWS

卷:92

Review

Jakobsson, Martin¹  Andreassen, Karin²  Bjarnadottir, Lilja Run³  Dove, Dayton⁴  Dowdeswell, Julian A.⁵  England, John H.⁶  Funder, Svend⁷  Hogan, Kelly⁵  Ingolfsson, Olafur^8,9  Jennings, Anne¹⁰  Larsen, Nikolaj Krog¹¹  Kirchner, Nina¹²  Landvik, Jon Y.¹³  Mayer, Larry¹⁴  Mikkelsen, Naja¹⁵  Moller, Per¹⁶  Niessen, Frank¹⁷  Nilsson, Johan¹⁸  O'Regan, Matt¹  Polyak, Leonid¹⁹  Norgaard-Pedersen, Niels¹⁵  Stein, Ruediger¹⁷ 

[1] Stockholm Univ, Dept Geol Sci, S-10691 Stockholm, Sweden

[2] Univ Tromso, Dept Geol, N-9037 Tromso, Norway

[3] Geol Survey Norway, N-7491 Trondheim, Norway

[4] British Geol Survey, Edinburgh, Midlothian, Scotland

[5] Univ Cambridge, Scott Polar Res Inst, Cambridge CB2 1ER, England

[6] Univ Alberta, Dept Earth & Atmospher Sci, Edmonton, AB T6G 2M7, Canada

[7] Univ Copenhagen, Nat Hist Museum, Ctr GeoGenet, DK-1350 Copenhagen, Denmark

[8] Univ Iceland, Fac Earth Sci, IS-101 Reykjavik, Iceland

[9] Univ Ctr Svalbard UNIS, Svalbard, Norway

[10] Univ Boulder Colorado, Inst Arct & Alpine Res INSTAAR, Boulder, CO 80309 USA

[11] Aarhus Univ, Dept Geosci, DK-8000 Aarhus C, Denmark

[12] Stockholm Univ, Dept Phys Geog & Quaternary Geol, S-10691 Stockholm, Sweden

[13] Norwegian Univ Life Sci, Dept Plant & Environm Sci, N-1432 As, Norway

[14] Univ New Hampshire, Ctr Coastal & Ocean Mapping, Durham, NH 03824 USA

[15] Geol Survey Denmark & Greenland GEUS, DK-1350 Copenhagen, Denmark

[16] Lund Univ, Dept Geol, SE-22362 Lund, Sweden

[17] Alfred Wegener Inst Polar & Marine Res, D-27570 Bremerhaven, Germany

[18] Stockholm Univ, Dept Meteorol, S-10691 Stockholm, Sweden

[19] Ohio State Univ, Byrd Polar Res Ctr, Columbus, OH 43210 USA

关键词: Quaternary;    Arctic Ocean;    Ice sheets;    Ice shelves;    Ice streams;    Landforms;    Glacial history;    Last Glacial Maximum;    Ice sheet modelling;    Paleoceanography;   

DOI  :  10.1016/j.quascirev.2013.07.033

来源: Elsevier

【 摘 要 】

While there are numerous hypotheses concerning glacial interglacial environmental and climatic regime shifts in the Arctic Ocean, a holistic view on the Northern Hemisphere's late Quaternary ice-sheet extent and their impact on ocean and sea-ice dynamics remains to be established. Here we aim to provide a step in this direction by presenting an overview of Arctic Ocean glacial history, based on the present state-of-the-art knowledge gained from field work and chronological studies, and with a specific focus on ice-sheet extent and environmental conditions during the Last Glacial Maximum (LGM). The maximum Quaternary extension of ice sheets is discussed and compared to LGM. We bring together recent results from the circum-Arctic continental margins and the deep central basin; extent of ice sheets and ice streams bordering the Arctic Ocean as well as evidence for ice shelves extending into the central deep basin. Discrepancies between new results and published LGM ice-sheet reconstructions in the high Arctic are highlighted and outstanding questions are identified. Finally, we address the ability to simulate the Arctic Ocean ice sheet complexes and their dynamics, including ice streams and ice shelves, using presently available ice-sheet models. Our review shows that while we are able to firmly reject some of the earlier hypotheses formulated to describe Arctic Ocean glacial conditions, we still lack information from key areas to compile the holistic Arctic Ocean glacial history. (C) 2013 The Authors. Published by Elsevier Ltd.

【 授权许可】

Free