Seismic measurements reveal a saturated porous layer beneath an active Antarctic ice stream

@article{Blankenship1986SeismicMR,
  title={Seismic measurements reveal a saturated porous layer beneath an active Antarctic ice stream},
  author={Donald D. Blankenship and Charles R. Bentley and S. T. Rooney and Richard B. Alley},
  journal={Nature},
  year={1986},
  volume={322},
  pages={54-57}
}
Seismic reflection studies recently conducted on ice stream B, part of the marine ice sheet of West Antarctica, show a metres-thick layer immediately beneath the ice in which both compressional (P) and shear (S) wave speeds are very low. These low wave speeds imply that the material in the layer is highly porous and is saturated with water at a high pore pressure. From this, and from arguments presented in an accompanying paper1 to the effect that the layer would be too weak to support the… CONTINUE READING

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