Here is a new publication by Jiao about the work he did on the Southern Alps of New Zealand. Jiao used on Raman Spectroscopy of Carbonaceous Material on sediments. The study shows how erosion patterns vary during a glacial retreat. Jiao’s new work extends nicely the work we published in the last few years using the same methodology (Herman et al., 2015; Nibourel et al., 2015; Beyssac et al., 2016).
Joanne, Benjamin, Günther and Luca alongside other colleagues at UNIL returned to the Gorner glacier for 3 days at the beginning of the month. The aim of the trip was to collect samples for calibration purposes from the surfaces exposed during last year’s trip.
For Dilan master project, we sampled 9 bedrock surfaces in collaboration with an EDYTEM researcher. Dilan will combine 10Be dating already done on these surfaces with OSL surface dating to quantify the exposure time and erosion rate of rockfall scars.
On August, 28, Renske Lambert graduated for her PhD. Congratulations Renske!
We would like to warmly welcome Luca Malatesta who recently joined us.
This month the Earth Surface Process Modelling group from GFZ is visiting us. We took this opportunity to do a 2-day field excursion at the Gorner glacier flowing down Monte Rosa.
Günther published a new study investigating the coupling between glacial erosion and tectonics: https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2017JF004559
It builds up on previous work by Headley et al. (2012), and it now provides a theoretical framework for the glacial buzzsaw hypothesis.
Rabiul published a paper on his methodological development of thermo-luminescence thermometry (TLT) in Earth and Planetary Science Letters: https://www.sciencedirect.com/science/article/pii/S0012821X18302334
This study builds on the suite of thermochronometric techniques we are developing in our laboratory. TLT enables us to target different traps that have different kinetic properties, and in turn gain more constraints on the recent (i.e., 10-100 ky) thermal histories of rocks.
The paper also proposes an alternative way to directly invert TLT data into exhumation rate histories using a Bayesian inverse approach.
Together with Jean Braun, Eric Deal and Gunther Prasicek we estimated the response time of glacial erosion. Here is our publication: https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1002/2017JF004586