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      Basal mechanics of Ice Stream B, west Antarctica: 1. Till mechanics

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      Journal of Geophysical Research: Solid Earth
      American Geophysical Union (AGU)

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          Sediment deformation beneath glaciers: Rheology and geological consequences

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            Deformation of till beneath ice stream B, West Antarctica

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              Physical Conditions at the Base of a Fast Moving Antarctic Ice Stream

              Boreholes drilled to the bottom of ice stream B in the West Antarctic Ice Sheet reveal that the base of the ice stream is at the melting point and the basal water pressure is within about 1.6 bars of the ice overburden pressure. These conditions allow the rapid ice streaming motion to occur by basal sliding or by shear deformation of unconsolidated sediments that underlie the ice in a layer at least 2 meters thick. The mechanics of ice streaming plays a role in the response of the ice sheet to climatic change.
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                Author and article information

                Journal
                Journal of Geophysical Research: Solid Earth
                J. Geophys. Res.
                American Geophysical Union (AGU)
                01480227
                January 10 2000
                January 10 2000
                : 105
                : B1
                : 463-481
                Article
                10.1029/1999JB900329
                8ab346ff-bc62-4012-baf8-36617110d725
                © 2000

                http://doi.wiley.com/10.1002/tdm_license_1.1

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