Late Quaternary sedimentation in Kejser Franz Joseph Fjord and the continental margin of East Greenland ...

The marine sedimentary record in Kejser Franz Joseph Fjord and on the East Greenland continental margin contains a history of Late Quaternary glaciation and sedimentation. Evidence suggests that a middle-shelf moraine represents the maximum shelfward extent of the Greenland Ice Sheet during the last...

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Bibliographic Details
Main Authors: Evans, Jeff, Dowdeswell, Julian A, Grobe, Hannes, Niessen, Frank, Stein, Ruediger, Hubberten, Hans-Wolfgang, Whittington, R J
Format: Article in Journal/Newspaper
Language:English
Published: PANGAEA 2002
Subjects:
Online Access:https://dx.doi.org/10.1594/pangaea.728151
https://doi.pangaea.de/10.1594/PANGAEA.728151
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Summary:The marine sedimentary record in Kejser Franz Joseph Fjord and on the East Greenland continental margin contains a history of Late Quaternary glaciation and sedimentation. Evidence suggests that a middle-shelf moraine represents the maximum shelfward extent of the Greenland Ice Sheet during the last glacial maximum. On the upper slope, coarse-grained sediments are derived from the release of significant quantities of iceberg-rafted debris (IRD) and subsequent remobilization by subaqueous mass-flows. The middle-lower slope is characterized by hemipelagic sedimentation with lower quantities of IRD (dropstone mud and sandy mud), punctuated episodically by deposition of diamicton and graded sand/gravel facies by subaqueous debris flows and turbidity currents derived from the mass failure of upper slope sediments. The downslope decrease of IRD reflects either the action of the East Greenland Current (EGC) confining icebergs to the upper slope, or to the more ice-proximal setting of the upper slope relative to the ... : Supplement to: Evans, Jeff; Dowdeswell, Julian A; Grobe, Hannes; Niessen, Frank; Stein, Ruediger; Hubberten, Hans-Wolfgang; Whittington, R J (2002): Late Quaternary sedimentation in Kejser Franz Joseph Fjord and the continental margin of East Greenland. Geological Society of London, Special Publications (Open Acess http://hdl.handle.net/10013/epic.15709.d008), 203, 149-179 ...