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A View From The Sea: The Marine-Geophysical Signature Of Past Ice Sheets    Información Video  Detalles Conferencista
  Coloquio
  Área : Glaciología
  Fecha : Jueves 20 de Marzo de 2014
  Hora : 18:00 hrs.
  Lugar : Sala de conferencias, edificio Martha Muse, Centro de Estudios Científicos, Valdivia.
  Año Publicación : 2014
  Resumen : 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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