ITS5.14/GD7.3 | Viscous Flow in Polycrystalline Materials: across disciplines
EDI
Viscous Flow in Polycrystalline Materials: across disciplines
Co-organized by CR6
Convener: Daniel RichardsECSECS | Co-conveners: Felicity McCormack, Lisa CrawECSECS, Ágnes KirályECSECS
Orals
| Mon, 15 Apr, 08:30–10:15 (CEST)
 
Room 1.34
Posters on site
| Attendance Mon, 15 Apr, 10:45–12:30 (CEST) | Display Mon, 15 Apr, 08:30–12:30
 
Hall X2
Orals |
Mon, 08:30
Posters on site
Mon, 10:45
Geological materials such as ice and olivine are often modelled as viscous fluids at the large scale. However, they have complex, evolving microstructures which are not present in normal fluids, and these can have a significant impact on large-scale flow behaviour. These different materials have many commonalities in how the evolving microstructure influences the large scale flow, yet research is often siloed into individual disciplines.

With this session, we aim to bring together researchers from a range of disciplines, studying a variety of anisotropic materials, and working on different aspects of complex viscous flow such as: viscous anisotropy related to CPO or extrinsic microstructures; crystallographic preferred orientation (CPO) or fabric evolution; other controls on rheology such as grain size, dynamic recrystallisation and deformation mechanisms; and impact of rheology on complex flow, e.g. in the transition through a shear margin.

We encourage submissions investigating this topic through numerical modelling, laboratory experiments and observational studies. We are aiming to convene an inclusive and collaborative session, and invite contributions from all disciplines. We particularly encourage early career researchers to participate.

Orals: Mon, 15 Apr | Room 1.34

Chairpersons: Lisa Craw, Ágnes Király, Daniel Richards
08:30–08:35
5-minute convener introduction
EGU24-4569
|
solicited
|
Highlight
|
On-site presentation
A structural geologist's view on the Northeast Greenland Ice Stream
Paul D. Bons et al.
EGU24-8435
|
On-site presentation
Accurate mean-field micromechanical modelling of the nonlinear anisotropic response of polycrystalline aggregates
Olivier Castelnau and Pedro Ponte Castañeda
EGU24-6530
|
ECS
|
On-site presentation
Diffusive, Linearly-Viscous Deformation of Temperate, Watery Ice at Stresses of 50-180 kPa
(withdrawn)
Jacob Fowler et al.

Posters on site: Mon, 15 Apr, 10:45–12:30 | Hall X2

Display time: Mon, 15 Apr 08:30–Mon, 15 Apr 12:30
Chairpersons: Daniel Richards, Ágnes Király, Lisa Craw
EGU24-8169
|
ECS
|
OSPP
|
On-site presentation
The coupled evolution of crystal orientation fabric and ice flow in ice streams
Laura Rysager et al.
EGU24-10371
|
ECS
|
On-site presentation
Eggs and sausages: wireless instrumentation for measuring ice anisotropy and kinematics
Lisa Craw et al.
EGU24-17744
|
On-site presentation
Exploring the attenuation of ice at elevated confining pressure
David Goldsby et al.