Missions

The Institut des Sciences de la Terre (Grenoble) is looking to recruit a post-doctoral researcher from summer 2025 to work on the magnetic properties of alpine ophiolites within the ANR NaturalDH project.

The postdoctoral researcher will be responsible for:
- Organizing and carrying out field campaigns to acquire magnetic data by drone and on foot in mountainous environments. Drone data collection will be carried out in collaboration with a CNRS-certified pilot.
- Analyze magnetic data to extract magnetic maps.
- Model the magnetic signal to determine the factors responsible for the measured magnetic signal.
- Integrate the measurements made with results obtained by other project members on the magnetic mineralogy of the ophiolites studied.

Activités

To carry out the missions described above, the postdoctoral researcher's activity will include:
- Field missions
- Laboratory work for data processing
- Participation in the dissemination of the results obtained (drafting of publications, participation in scientific conferences).

A magnetic dataset is already available, which can be processed as soon as the position begins.

Compétences

The skills required for this post-doctorate include:

- Proficiency in magnetic mapping tools (calibration and use of magnetometers)
- Use of drones (preparation of flight plans, use in the field in compliance with legislation)
- Proficiency in digital programming tools (Python) for processing and modeling magnetic data (creation of magnetic anomaly maps from data, then magnetization models) using open-source codes or codes developed at ISTerre.

Participation in field missions or a proven ability to work in mountainous environments will be considered an asset. Knowledge of geology and mineralogy, particularly magnetic mineralogy, will also be considered a plus.

Contexte de travail

The Centre national de la recherche scientifique is one of the world's leading research institutions. To meet the major challenges of today and tomorrow, its scientists explore life, matter, the Universe and the workings of human society. Internationally recognized for the excellence of its scientific work, the CNRS is a benchmark in the world of research and development, as well as for the general public. The Centre National de la Recherche Scientifique (CNRS) is a public multidisciplinary research organization under the authority of the French Ministry of Higher Education, Research and Innovation.

ISTerre is a joint research unit of Université Grenoble Alpes, CNRS, USMB, IRD and Université Gustave Eiffel, located at 1381 rue de la Piscine 38400 Saint-Martin d'Hères, on the Bourget du Lac science campus. It is part of the Observatoire des Sciences de l'Univers de Grenoble (OSUG) and the PAGE research cluster of the Université Grenoble Alpes (UGA). It employs around 300 people and has an average annual budget of €7 million. It is organized around 9 research and service teams, with the scientific objective of studying the physics and chemistry of planet Earth, with a particular focus on coupling observations of natural objects with experimentation and modeling of the associated complex processes. ISTerre also carries out solid Earth observation missions, and hosts and maintains national fleets of geophysical instruments, as well as a data center.

The person recruited will join the mineralogy team. The project will be carried out in a team comprising a specialist in the acquisition and processing of magnetic data (Claire Bouligand; Volcano Geophysics team) and specialists in the geology and mineralogy of ophiolites (B. Malvoisin, F. Brunet and A.-L. Auzende, Mineralogy team; S. Schwartz , TRB team). This multi-disciplinary team is particularly attentive to the quality of working relationships. The project is part of a larger project (ANR NaturaLDH) focusing on the alteration of mantle rocks. The project also includes a PhD student.