Understanding how successive earthquakes accrue on individual faults to produce kilometer-scale displacements, build landscapes and activate cascades of geomorphological processes is still poorly understood. While large-scale geodynamic processes like subduction and orogenesis can be considered continuous over geological timescales (100 ka to Ma), they mostly operate discretely over shorter timescales (< 100 ka). Apparent quiescence is transiently interrupted by pulses of localised tectonic and geomorphic activity, which repeatedly interact and shape the landscape. Long-term permanent crustal deformation forms landscapes, yet geodesy primarily records short-term elastic strain. In this context, the surface expression on individual faults or active margins contains valuable information on both the endogenous and the exogenous processes at work, the complexity of which may be studied in long-term features (e.g. landscape evolution, mountain building, basin formation) as well as short-term data (e.g. geodetic monitoring, paleoseismology).

The scope of this session is to bring together state-of-the-art research efforts to better understand how the short-term rate variability that is often recorded on the Earth’s surface integrates to produce uniform large-scale active tectonic processes (i.e. subduction, collision, rifting, transform faulting). We welcome contributions combining observations and analogue & numerical modelling. We would also particularly value studies that bridge deformational processes operating over different spatial and temporal scales.

Co-organized as GM4.4
Convener: Lucilla Benedetti | Co-conveners: Vincent Godard, Andrea Madella, Vasiliki Mouslopoulou, Philippe Steer
| Tue, 09 Apr, 16:15–18:00
Room K1
| Attendance Tue, 09 Apr, 10:45–12:30
Hall X2

Tuesday, 9 April 2019 | Room K1

Chairperson: Lucilla Benedetti, Andrea Madella and Philippe Steer
16:15–16:30 |
| solicited
| presentation
Nicolas Cosentino, Jason Morgan, Felipe Aron, Jorge Crempien, and Teresa Jordan
16:30–16:45 |
Javier Escartin, Jeremy Billant, Frederique Leclerc, Jean-Arthur Olive, Klemen Istenic, Nuno Gracias, Aurelien Arnaubec, Rafel Garcia, Christine Deplus, Nathalie Feuillet, and Subsaintes Team
16:45–17:00 |
Ed Rhodes, John Elliott, James Moore, Max Wilkinson, James Dolan, Rob Zinke, Alex Hatem, and Russ Van Dissen
17:00–17:15 |
Rasmus Thiede, Bodo Bookhagen, Dirk Scherler, Saptarshi Dey, Eugster Patricia, Markus Nennewitz, Edward Sobel, Konstanze Stübner, Ramon Arrowsmith, Vikrant Jain, and Manfred Strecker
17:15–17:30 |
Oliver Francis, Tristram Hales, Daniel Hobley, Alexander Horton, Xuanmei Fan, and Gianvito Scaringi
17:45–18:00 |
| solicited
| presentation
Aaron Bufe, Douglas W. Burbank, Bodo Bookhagen, Jessica A. Thompson Jobe, David P.S. Bekaert, Ekbal Hussain, Jie Chen, and Tao Li