RheoMan: a five-year, ERC-funded (Advanced Grant), project to model the rheology of the Earth's mantle

Apr 12, 2013 EGU 2013 in Vienna General

The General Assembly 2013 of the European Geosciences Union takes place this week (07 – 12 April 2013) in Vienna (Austria)

Patrick Cordier participates to the session "Creep and fracture of Earth and planetary materials: from ice to olivine" where he will present an invited talk on Friday 12 April (11:45–12:00), room G13, on

"Deformation mechanisms of olivine single crystals compressed at 300 MPa and 800-1100°C"

CR5.1 Creep and fracture of Earth and planetary materials: from ice to olivine

Convener: Martyn Drury Co-Conveners: Maurine Montagnat and Martin Schneebeli

Invited Speakers: Patrick Cordier, Peter Sammonds, Holger Stunitz

Deformation in the cryosphere and lithosphere of Earth and other planets occurs by creep and fracture of highly anisotropic polycrystalline materials such as ice, quartz, calcite, feldspar, pyroxene and olivine. In these materials deformation mechanisms and rheology are complex and challenging to include in modeling studies of cryosphere and lithosphere dynamics. The interdisciplinary session should bring together researchers from different fields, working on a similar topic: understanding cryosphere and lithosphere rheology based on the material properties. We wish to encourage contributions from glaciology (land, sea and planetary ice), structural geology, geodynamics and planetology. We welcome contributions dealing with all aspects of ice and mineral rheology, from brittle to ductile behaviour; including the influence of porosity, fluids, impurities, second phases; considering the texture development and recrystallization impacts on rheology; the brittle-ductile transition; coupling deformation of cryosphere and lithosphere.

This session is a contribution from the research networking programme on the Micro-Dynamics of ICE, Micro-DICE www.esf.org/microdice




Oral programme

Friday, 12 Apr 2013
Room: G13
Chairperson: Martyn Drury
Environmental controls on micro fracture processes in shelf ice (solicited)
Peter Sammonds
Slow crack propagation in glass and creep prediction
Celine Mallet, Jerome Fortin, and Yves Gueguen
The geometry of phase mixing: inferring viscous deformation processes from quantitative spatial distributions (solicited)
Holger Stunitz, Renee Heilbronner, and James McKenzie
Deformation and folds of the basal ice under the Greenland ice sheet
Dorthe Dahl-Jensen
Ductile deformation mechanisms of synthetic halite: a full field measurement approach
Alexandre Dimanov, Mathieu Bourcier, Eva Héripré, Michel Bornert, and Jean Raphanel
Deformation mechanisms of olivine single crystals compressed at 300 MPa and 800-1100°C (solicited)
Patrick Cordier, Sylvie Demouchy, Alexandre Mussi, and Andrea Tommasi