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Research and teaching centre
environmental geosciences
Research and teaching centre
environmental geosciences

Evolution of the cryosphere over time

Assessing the response of mountain glaciers and polar ice caps during the Quaternary period sheds important light on the dynamics of deglaciation, both on a regional and global scale. Our work focuses on glaciated areas at high, medium and low latitudes in both hemispheres (Greenland, Antarctica, the Alps, the Himalayas, the Kerguelen Islands, the Andes, etc.) and is based on the dating of glacial formations using cosmogenic nuclides and glacial and climatic modelling. Our team is also working on older glaciations (Palaeozoic and Proterozoic), as well as on changes in sea level associated with glaciation and deglaciation cycles.
Cet axe de recherche s’est significativement développé lors des dernières années avec l’arrivée de Vincent Jomelli, Deborah Verfaillie and Vincent Rinterknecht. L’émulation entre anciens et nouveaux titulaires de l’équipe se manifeste au travers de participations à plusieurs ANR financées en 2022 (ANR DELTA and ANR MARGO). Le premier projet traite directement de la dynamique des glaciers de l’Antarctique de l’Est et leurs impacts sur le niveau marin. Le second porte sur l’impact de la fonte des glaciers des Îles Kerguelen sur la biochimie de l’océan Austral. La construction récente d’une chaîne de mesure du 14C in situ (Irene Schimmelpfennig) permettra prochainement de généraliser les approches de datation par nucléides cosmogéniques aux périodes de retrait glaciaire marqué.

Projects

  • 2022-2026: ANR DELTA: Long term Glacier Dynamics in East Antarctica and impact on sea level rise
  • 2022-2026: ANR MARGO: Glacial material and its fate in the ocean: a case study in Kerguelen
  • 2022-2026: IPEV: Holocene deglaciation in Adelie Land from cosmogenic dating
  • 2022-2026: IPEV Greenland: Alpine glacier fluctuations in South Greenland during the Holocene
  • 2020-2024: IRP CNRS: Deglaciation in the Greater Caucasus
  • 2019-2020: IMAGO/LEF GLADY, The Arsine glacier during the Holocene: a paraglacial dynamic responsible for an exceptional advance?
  • 2015-2020: ANR WarHol : Glaciers in a warming world: lessons from the Holocene record using the new 'in situ carbon-14' dating tool