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SUMMARY:Reflection seismic investigations of the Beaufort Sea margin\, Arc
 tic Ocean: Variable history of Quaternary ice-sheet advance - Christine Ba
 tchelor\, SPRI
DTSTART:20121017T153000Z
DTEND:20121017T163000Z
UID:TALK40735@talks.cam.ac.uk
CONTACT:Steven Palmer
DESCRIPTION:The seismic stratigraphy and sedimentary architecture of the B
 eaufort Sea shelf and adjacent continental slope are investigated using a 
 comprehensive grid of high-resolution 2-D seismic reflection data. Three c
 ross-shelf troughs\, representing the locations of former ice streams drai
 ning a 1000 km-long section of the Laurentide Ice Sheet are examined\; the
  Mackenzie\, Amundsen Gulf and M'Clure Strait systems. Significant contras
 ts are identified between the Mackenzie Trough on the western Beaufort Sea
  margin and the Amundsen Gulf and M'Clure Strait troughs to the east\, bot
 h in terms of their glacial history and the resulting architecture of the 
 shelf and slope. These observations are considered in relation to the dyna
 mics of the Laurentide Ice Sheet and the glacial history of the Beaufort S
 ea margin.\n
LOCATION:Scott Polar Research Institute\, main lecture theatre
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