Schneider-Mor, Aya et al. (2005): Diatom stable isotopes, sea ice presence and sea surface temperature records of the past 640 ka in the Atlantic sector of the Southern Ocean

Leg/Site/Hole:
ODP 177
ODP 177 1094
Identifier:
2005-077304
georefid

10.1029/2005GL022543
doi

Creator:
Schneider-Mor, Aya
Weizmann Institute of Science, Rehovot, Israel
author

Yam, Ruth
Alfred Wegener Institute for Polar and Marine Research, Federal Republic of Germany
author

Bianchi, Cristina
author

Kunz-Pirrung, Martina
author

Gersonde, Rainer
author

Shemesh, Aldo
author

Identification:
Diatom stable isotopes, sea ice presence and sea surface temperature records of the past 640 ka in the Atlantic sector of the Southern Ocean
2005
Geophysical Research Letters
American Geophysical Union, Washington, DC, United States
32
10
High-resolution delta (super 13) C and delta (super 15) N records of diatom-bound organic matter (delta (super 13) C (sub D) , delta (super 15) N (sub D) ) from ODP site 1094, South of the Polar Front, are combined with reconstructions of summer sea surface temperature and winter sea-ice to establish changes in surface water characteristics associated with the main climatic events of the past 640 ka. The six glacial-interglacial delta (super 13) C (sub D) cycles show excellent agreement with SPECMAP delta (super 18) O and Vostok CO (sub 2) content, suggesting that global physical processes rather than local biological factors were the main influences on delta (super 13) C (sub D) . By contrast, there is weak correspondence between the Vostok dust record and the delta (super 13) C (sub D) and delta (super 15) N (sub D) records. (mod. journ. abst.)
English
Coverage:Geographic coordinates:
North:-53.1049
West:5.0749East: 5.0749
South:-53.1049

Quaternary geology; algae; Atlantic Ocean; C-13/C-12; carbon; carbon dioxide; Cenozoic; diatoms; ice; ice cores; isotope ratios; isotopes; Leg 177; microfossils; N-15/N-14; nitrogen; O-18/O-16; Ocean Drilling Program; ODP Site 1094; oxygen; paleoenvironment; paleotemperature; Plantae; Pleistocene; Quaternary; sea ice; sea-surface temperature; seasonal variations; South Atlantic; Southern Ocean; stable isotopes;

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