Palaeoceanography on the European arctic margin during the last deglaciation

被引:38
|
作者
Hald, M [1 ]
Dokken, T [1 ]
Hagen, S [1 ]
机构
[1] UNIV TROMSO,DEPT GEOL,N-9037 TROMSO,NORWAY
关键词
D O I
10.1144/GSL.SP.1996.111.01.18
中图分类号
P5 [地质学];
学科分类号
0709 ; 081803 ;
摘要
To reveal the palaeoceanographic and palaeoclimatic evolution related to the disintegration of the Barents Sea and Fennoscandian ice sheets, high-resolution sediment cores from the continental margin off western Svalbard, western Barents Sea and northern Norway were investigated. The location of these cores is below the axis of the Norwegian Current and beyond, but close to, glaciated continental areas. Hence they should sensitively reflect the palaeoceanography of the northernmost Norwegian Sea. Between , 14.5-19.5 and 22.5-29 14C ka, a high abundance of planktonic foraminifera and a small content of subpolar species indicate seasonally ice-free and slightly warmed surface water. This phenomenon is related to the advection of surface water of North Atlantic origin. The onset of the deglaciation is characterized by a marked low oxygen event dated to between 15 and 13 ka, interpreted to reflect a surface water freshening produced by meltwater and reduced oceanic mixing. After the onset of deglaciation, the surface ocean warmed in three rapid steps: (1) around 12.5 ka, indicated by increased abundances of planktonic foraminifera; (2) at 10.2ka and at (3) 10-9.6 ka. The two latter steps are reflected by the increased abundance of subpolar planktonic foraminifera.
引用
收藏
页码:275 / 287
页数:13
相关论文
共 50 条
  • [1] Deglaciation history and palaeoceanography of the western Spitsbergen margin since the last glacial maximum
    Lloyd, J
    Kroon, D
    Laban, C
    Boulton, G
    [J]. LATE QUATERNARY PALAEOCEANOGRAPHY OF THE NORTH ATLANTIC MARGINS, 1996, (111): : 289 - 301
  • [2] Cirque glacier activity in arctic Norway during the last deglaciation
    Paasche, Oyvind
    Dahl, Svein Olaf
    Bakke, Jostein
    Lovlie, Reidar
    Nesje, Atle
    [J]. QUATERNARY RESEARCH, 2007, 68 (03) : 387 - 399
  • [3] Early reactivation of European rivers during the last deglaciation
    Menot, Guillemette
    Bard, Edouard
    Rostek, Frauke
    Weijers, Johan W. H.
    Hopmans, Ellen C.
    Schouten, Stefan
    Damste, Jaap S. Sinninghe
    [J]. SCIENCE, 2006, 313 (5793) : 1623 - 1625
  • [4] Retreat of the Western Cordilleran Ice Sheet Margin During the Last Deglaciation
    Darvill, C. M.
    Menounos, B.
    Goehring, B. M.
    Lian, O. B.
    Caffee, M. W.
    [J]. GEOPHYSICAL RESEARCH LETTERS, 2018, 45 (18) : 9710 - 9720
  • [5] Arctic and Antarctic forcing of ocean interior warming during the last deglaciation
    Stewart, Joseph A.
    Robinson, Laura F.
    Rae, James W. B.
    Burke, Andrea
    Chen, Tianyu
    Li, Tao
    Ferreira, Maria Luiza de Carvalho
    Fornari, Daniel J.
    [J]. SCIENTIFIC REPORTS, 2023, 13 (01)
  • [6] Arctic and Antarctic forcing of ocean interior warming during the last deglaciation
    Joseph A. Stewart
    Laura F. Robinson
    James W. B. Rae
    Andrea Burke
    Tianyu Chen
    Tao Li
    Maria Luiza de Carvalho Ferreira
    Daniel J. Fornari
    [J]. Scientific Reports, 13
  • [7] Palaeoceanography of the Barents Sea continental margin, north of Nordaustlandet, Svalbard, during the last 74 ka
    Chauhan, Teena
    Rasmussen, Tine L.
    Noormets, Riko
    [J]. BOREAS, 2016, 45 (01) : 76 - 99
  • [8] History of freshwater runoff across the Laptev Sea (Arctic) during the last deglaciation
    Spielhagen, RF
    Erlenkeuser, H
    Siegert, C
    [J]. GLOBAL AND PLANETARY CHANGE, 2005, 48 (1-3) : 187 - 207
  • [9] Activity of the turbidite levees of the Celtic-Armorican margin (Bay of Biscay) during the last 30,000 years: Imprints of the last European deglaciation and Heinrich events
    Toucanne, S.
    Zaragosi, S.
    Bourillet, J. F.
    Naughton, F.
    Cremer, M.
    Eynaud, F.
    Dennielou, B.
    [J]. MARINE GEOLOGY, 2008, 247 (1-2) : 84 - 103
  • [10] Bottom-water deoxygenation at the Peruvian margin during the last deglaciation recorded by benthic foraminifera
    Erdem, Zeynep
    Schonfeld, Joachim
    Rathburn, Anthony E.
    Perez, Maria-Elena
    Cardich, Jorge
    Glock, Nicolaas
    [J]. BIOGEOSCIENCES, 2020, 17 (12) : 3165 - 3182