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The importance of particulate texture to the flow strength of ice + dust

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Abstract

Preliminary experimental surveys of the flow of dilute mixtures of ice plus hard particulates under planetary conditions indicate a strengthening effect with respect to pure ice, but with dependencies on environmental conditions (temperature, stress, grain size) that vary widely from study to study [1-4]. With the expectation that the textural character of the particulate fraction (size, shape, spatial distribution of particulates; relationship of particulates to ice grain boundaries, etc.) also influences rheological behavior, we have begun a more systematic investigation of the effect of particulates on strength. We rely extensively on cryogenic scanning electron microscopy (CSEM) and to maximize planetary relevance we focus on behavior at low stress and small grain size.

Additional publication details

Publication type Conference Paper
Publication Subtype Abstract or summary
Title The importance of particulate texture to the flow strength of ice + dust
Year Published 2015
Language English
Publisher Lunar and Planetary institute
Contributing office(s) Earthquake Science Center
Description 2 p.
Larger Work Type Conference Paper
Larger Work Title Proceedings of 46th lunar and planetary science conference
Conference Title 46th lunar and planetary science conference
Conference Location Woodlands, Texas
Conference Date March 16–20, 2015
Online Only (Y/N) N
Additional Online Files (Y/N) N