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A View From The Sea: The Marine-Geophysical Signature Of Past Ice Sheets    Video Information  Speaker Details
  Colloquium
  Area : Glaciology
  Date : Thursday, March 20, 2014
  Time : 18:00 hrs.
  Venue : Conference Room, Martha Muse Building, Centro de Estudios Científicos, Valdivia.
  Year of Publication : 2014
  Summary : The deglaciation of high-latitude continental shelves since the Last Glacial Maximum about 20,000 years ago has revealed suites of subglacial and ice-contact landforms that have remained well-preserved beneath tens to hundreds of meters of water. Once ice has retreated, sedimentation is generally low on polar shelves during interglacials and the submarine landforms have not, therefore, been buried by subsequent sedimentation. By contrast, the beds of modern ice sheets are hidden by several thousand meters of ice, which is much more difficult than water to penetrate using geophysical methods. These submarine glacial landforms provide insights into past ice-sheet form and flow, and about the processes that have taken place beneath former ice ...
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Video Language : English   Link Video     
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