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Icequakes used to measure friction and slip at a glacier bed

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Icequake observations were combined with an analytical friction model to measure friction and slip at the bed of an Antarctic ice stream. Friction and slip are found to be highly variable in space and time, controlled by higher-than-expected normal stresses at the ice–bed interface.

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Fig. 1: Friction and slip observations and mechanisms.

References

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This is a summary of: Hudson, T. S. et al. Highly variable friction and slip observed at Antarctic ice stream bed. Nat. Geosci. https://doi.org/10.1038/s41561-023-01204-4 (2023).

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Icequakes used to measure friction and slip at a glacier bed. Nat. Geosci. 16, 556–557 (2023). https://doi.org/10.1038/s41561-023-01207-1

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