Friday, November 12, 2021

[CRYOLIST] Landscapes Live Thursday November 18th: Dirk Scherler

Dear all,

We are very pleased to announce the next Landscapes Live online seminar of the fall 2021 block by Dirk Scherler (GFZ Potsdam) that will occur on Thursday, November 18th at 4 pm CET / 3 pm GMT / 7 am PST / 10 am EST on:

"Eroding the Garhwal Himalaya – deciphering climatic and tectonic controls with cosmogenic nuclides"

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://aarhusuniversity.zoom.us/meeting/register/u50sdeihrTorGtHnwnUJ3De55JBxUra3hwof (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 25th November at 2 pm GMT/ 4 pm CEST: Anne Bernhardt, Freie Universität Berlin
  • Thursday 02nd December at 2 pm GMT/ 4 pm CEST: Sébastien Carretier, IRD and 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: Rebekah Harries, Michal Ben-Isreal, Pierre Valla, Philippe Steer, Steffi Tofelde, Charlie Shobe, Vivi Pedersen and Boris Gailleton

Abstract High rock uplift and erosion rates coupled with intense orographic precipitation make the Himalaya a key target for understanding links between changes in climate, erosion, and tectonics. In this presentation, I will focus on the Garhwal Himalaya, in Northern India, where a large data set of cosmogenic 10Be-derived erosion and paleo-erosion rates illuminates the factors that control spatial and temporal variations in erosion across this part of the Himalaya. The main conclusions drawn from this data set are: (1) Consistent with observations all along the Himalaya, spatial patterns in present-day erosion rates are tightly coupled to rock uplift rates as dictated by the dip of the Main Himalayan Thrust Fault. (2) Temporal variations in erosion rates across the last glacial termination and accompanying changes in monsoon strength appear relatively small in ice-free areas. (3) Temporal variations in erosion rates between 6 and 2 million years appear to record the tectonic growth of the Himalaya by punctuated basal and frontal accretion of rocks from the underthrusting Indian plate and concomitant changes in topography.