Till beneath ice stream B. 3. Till deformation: evidence and implications

R. B. Alley, D. D. Blankenship, C. R. Bentley, S. T. Rooney

Research output: Contribution to journalArticlepeer-review

266 Scopus citations


Most of the velocity of ice stream B near the upstream B CAMP (UpB), West Antarctica, appears to arise from deformation of a seismically detected, subglacial till layer that averages 6 m thick. The resulting till flux beneath UpB is equivalent to an average erosion rate of about 0.4 mm yr -1 in the catchment area and suggests that till deltas tens of kilometers long have been deposited at the grounding line during the Holocene. -from Authors

Original languageEnglish (US)
Pages (from-to)8921-8929
Number of pages9
JournalJournal of Geophysical Research
Issue numberB9
StatePublished - 1987

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Materials Chemistry
  • Polymers and Plastics
  • Physical and Theoretical Chemistry


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