Grain size-sensitive creep in ice II

Tomoaki Kubo, William B. Durham, Laura A. Stern, Stephen H. Kirby

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)

Abstract

Rheological experiments on fine-grained water ice II at low strain rates reveal a creep mechanism that dominates at conditions of low stress. Using cryogenic scanning electron microscopy, we observed that a change in stress exponent from 5 to 2.5 correlates strongly with a decrease in grain size from about 40 to 6 micrometers. The grain size-sensitive creep of ice II demonstrated here plausibly dominates plastic strain at the low-stress conditions in the interior of medium- to large-sized icy moons of the outer solar system.

Original languageEnglish
Pages (from-to)1267-1269
Number of pages3
JournalScience
Volume311
Issue number5765
DOIs
Publication statusPublished - Mar 3 2006

All Science Journal Classification (ASJC) codes

  • General

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