Dear All,
We are very pleased to announce the next Landscapes Live online seminar of the Spring 2022 block by Stephane Bonnet that will be held tomorrow, Thursday, March 31st at 3pm GMT (= 3pm in London / 4pm in Paris-Berlin / 6pm in Moscow / 8.30pm in Delhi / 11pm in Beijing / 11am in New York / 8am in Los Angeles) on:
"Imprint of landscape dynamics on the luminescence of fluvial sediments (Rangitikei River, New Zealand)"
Abstract: The luminescence of quartz and feldspars is commonly used for burial dating Quaternary sediments (e.g. OSL and IRSL methods) however several studies have shown in recent years that luminescence can also be used for tracing Earth's surface processes. In this seminar I will illustrate how surface processes impact the distribution of luminescence signals of fluvial sediments. I will take as an example the case of the Rangitikei River where we have acquired over the last few years a large database of luminescence measurements carried out at the single-grain scale in fluvial terraces and modern sediments. I will show in particular that the distribution of the signals reflects the combined effect of two main processes whose relative influence changes over time and space in relation to landscape dynamics: on one hand the input of bedrock grains to the river and on the other hand the longitudinal bleaching (zeroing) of the signal during transport. I will also discuss the consequences in terms of uncertainty on the luminescence dating of terraces.
This seminar will be live on Zoom and open to anyone interested (with a limit of 300 participants). Register in advance for this meeting: https://zoom.us/meeting/register/tJAsc-morTsuEtyDJBInGOb0sMzTo546OPXd (after registering, you should receive a confirmation email containing information about joining the meeting).
The Landscapes Live online seminar series will then continue the following weeks with:
· Thursday 7 April at 3 pm GMT/ 4 pm CET: Odin Marc, University of Toulouse
More information on these talks as well as the videos of previous talks are available on our website (https://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: landscapesliveseminar@gmail.com
Best wishes,
The Landscapes Live team
Michal Ben-Israel, Ana Rita Carrasco, Aditi K Dave, Boris Gailleton, Rebekah Harries, Lizzie Orr, Philippe Steer, and Pierre Valla
