Documentation and sedimentology of core PS1021-1 from the Antarctic continental margin off Kap Norvegia

Sedimentological analyses concerning ice rafted debris, grain size distribution, biogenous components, and clay mineral composition of four sediment cores from the Antarctic continental margin off Kapp Norvegia reveal a cyclical pattern of three different sediment facies. These are classified into w...

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Bibliographic Details
Main Author: Grobe, Hannes
Format: Dataset
Language:English
Published: PANGAEA 1986
Subjects:
ANT-I/2
AWI_Paleo
Gravity corer (Kiel type)
Kapp Norvegia
Paleoenvironmental Reconstructions from Marine Sediments @ AWI
Polarstern
PS01
PS01/221
PS1021-1
SL
Antarctic
The Antarctic
Weddell Sea
Weddell
Kap
Antarc*
Berichte zur Polarforschung
Ice Shelf
Polar Research
Polarforschung
Reports on polar research
Online Access:https://doi.pangaea.de/10.1594/PANGAEA.549058
https://doi.org/10.1594/PANGAEA.549058
Description
Summary:Sedimentological analyses concerning ice rafted debris, grain size distribution, biogenous components, and clay mineral composition of four sediment cores from the Antarctic continental margin off Kapp Norvegia reveal a cyclical pattern of three different sediment facies. These are classified into warm and cold types representing warm and cold climatic periods and a short transition period from cold to warm events. The sedimentological parameters reflect the variations within the cryosphere and the hydrosphere, which are directly influenced by the climatic fluctuations. The unusually high content of carbonaceous planktonic and benthonic foraminifera in these polar sediments, as well as the interfingering of terrigeneous and biogeneous-rich sediments with increasing distance from the continent, might reflect the influence of the Weddell Sea Polynya and the oscillations of polynya, pack-ice and ice shelf extent during the late Pleistocene.

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