Dear All,
We are very pleased to announce the next Landscapes Live online seminar by Harrison Gray (United States Geological Survey) this Thursday, February 16th at 16:00 CET (Amsterdam/Berlin/Paris).
"What fault scarps can tell us about the nature of sediment transport"
Abstract: Fault scarps are 1-3-meter-tall features produced from vertical tectonic motions over very short, seconds-long, timescales followed by longer timescale, up to thousands of years, sediment transport which smooths the scarp over time. These rapidly created features offer a rare opportunity to test our models of land surface evolution because they represent a sudden perturbation in which different process models produce distinct outcomes. Here, I overview our recent work on exploring models incorporating nonlocal sediment transport and a new sediment tracing method built from the physics behind luminescence dating. Results from cellular automata modeling suggest that incorporating nonlocal sediment transport can better capture the scarp topographic profile over time and show a direct connection between sedimentological facies and geomorphic process rates. Comparing the model results against the sediment tracing data reveals complex sediment transport processes beyond the model predictions, including periods of simultaneous debris and wash facies forming processes, erosion, and reworking. Ongoing and future efforts explore convolution forms of nonlocal sediment transport compared with a global compilation of scarp profiles with implications for diffusion-based models of colluvial sediment transport.
The seminar will be live on Zoom and open to anyone interested (limit of 300 participants). Register in advance for this meeting:
https://ucmerced.zoom.us/meeting/register/tZwtcOipqzopHtNQSVmIEIZkGwSudVddjien
After registering, you should receive a confirmation email containing the information you need to join the meeting.
For more information about the upcoming talks in the Spring Series and recordings of previous talks, please visit our website at www.landscapeslive.org.
Landscapes Live is the EGU Geomorphology Division's virtual webinar series focused on sharing exciting geomorphology research throughout the international scientific community. Feel free to contact us if you have questions or suggestions: landscapeslive@gmail.com
Best wishes,
The Landscapes Live team
Michal Ben-Israel, Rebekah Harries, Aditi K Dave, Pedro Val, Luca Malatesta, A. Rita Carrasco, Lizzie Orr, and Boris Gailleton
