Missions

To determine the isotopic compositions (δ13C and δ18O) of ostracod valves from sediment cores collected in European lakes. To synthesize existing data, interpret them and promote them in the form of scientific publications.

Activités

• Complete the current dataset:
- Review the current sample set consisting of ostracod varves collected from sediment cores from Lakes Mondsee, Ammersee, and Annecy.
- Refine sample curation.
- Prioritize the measurements to be performed.
- Determine the isotopic compositions (δ13C and δ18O) of ostracod larval capsules using IRMS.
• Organize the dataset:
- Verify and update the age models of the cores.
- Integrate new results with previous results.
- Prepare the datasets for publication in the form of scientific publications and data papers.
• Promote the results:
- Organize working meetings and seminars with local, national, and international collaborators.
- Prepare the publication plan.
- Participate in data interpretation and the writing of scientific articles.

Compétences

• Sample and data management.
• Scientific collaboration in an international and interdisciplinary setting.
• Scientific communication (oral and written).
We are seeking a highly motivated candidate with the following qualifications:
• Strong skills in paleolimnology, paleoclimatology, and isotope geochemistry.
• English language: B1 to B2 (Common European Framework of Reference for Languages)

Contexte de travail

Part of the University of Paris Saclay, the LSCE is a joint research unit (UMR 8212) between the CEA, the CNRS and the University of Versailles Saint-Quentin en Yvelines (UVSQ), located at the Orme des Merisiers. It is part of the Institut Pierre Simon Laplace (IPSL), a federation of nine climate and environment research institutes in the Paris region. The LSCE brings together around 320 researchers, engineers and administrative staff, including 150 permanent staff from the three supervisory authorities and around fifty doctoral students. Since January 2015, the LSCE has been organized into three scientific themes: i) Archives and Tracers ii) Biogeochemical Cycles and Transfers in the Environment iii) Climate and Cycles - Modeling their variabilities and interactions. Each of these themes brings together between 4 and 7 research teams formed around common tools and/or research topics. The LSCE also relies on three platforms: PANOPLY for analytical geochemistry (shared with the GEOPS laboratory), ICOS (for greenhouse gas monitoring), and the Earth system modeling platform (led by IPSL). Scientific activity is facilitated by its three support teams (Administration/Management, IT, Security/Infrastructure).

This position is open in support of the AmMoAn project led by Ulrich von Grafenstein. The objective of the project is to reconstruct, at high temporal resolution, the climatic variability over the past 20,000 years in Europe by isotopic analysis (δ13C and δ18O) of ostracod larval valves preserved in the sediments of three European lakes.