A theory for ice-till interactions and sediment entrainment beneath glaciers

@article{Rempel2008ATF,
  title={A theory for ice-till interactions and sediment entrainment beneath glaciers},
  author={Alan W. Rempel},
  journal={Journal of Geophysical Research},
  year={2008},
  volume={113}
}
  • A. Rempel
  • Published 2008
  • Geology
  • Journal of Geophysical Research
and frozen onto or melted from the glacier base can achieve a steady state that is in balance with the rate that latent heat is transported to or from the basal interface. At constant N, when a gradual increase in heat flow from the glacier base causes the rate of melting to decrease, h increases and continues to do so when the heat flow is great enough to produce freezing. As freezing becomes more rapid and h increases further, the rate of fluid supply to the glacier base reaches a maximum… Expand
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Unlithified sediment at glacier beds should be entrained in ice as a result of melting above individual grains and refreezing below grains (regelation). To test this hypothesis, a device thatExpand
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[1] We have constructed a high-resolution numerical model of heat, water, and solute flows in sub-ice stream till subjected to basal freeze-on. The model builds on quantitative treatments of frostExpand
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Abstract The mechanical properties of materials at the ice-bed interface exert a major control on glacier behaviour and define the nature and rate of subglacial erosion. This paper presents new dataExpand
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Abstract The deformation of subglacial till is instrumental in causing certain glacier surges, the motion of rapid ice streams in ice sheets, and ice-sheet surges which are associated with HeinrichExpand
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[1] Subglacial hydrological and mechanical processes play a critical role in determining the flow characteristics and stability of glaciers and ice sheets. To study these processes, we have measuredExpand
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Analytical and numerical techniques are used to examine the flow response of a sloped slab of power-law fluid (power n) subjected to basal boundary conditions that vary spatially across the flowExpand
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