Post doc (M/F) in nanogeochronology
New
- Researcher in FTC
- 24 month
- Doctorate
This offer is available in English version
This offer is open to people with a document recognizing their status as a disabled worker.
Offer at a glance
The Unit
Laboratoire de Géologie de Lyon : Terre, Planètes, Environnement
Contract Type
Researcher in FTC
Working hHours
Full Time
Workplace
42000 ST ETIENNE
Contract Duration
24 month
Date of Hire
01/10/2026
Remuneration
Between 3 041€ and 4 668€ brutto per month depending on experience. Salaries include Health and Retirement benefits.
Apply Application Deadline : 16 July 2026 23:59
Job Description
Missions
Understanding processes and time scales in ancient terrestrial and extraterrestrial (phosphate) materials through nanoscale investigations.
Atom Probe Tomography (APT); phosphates; correlative microscopy with TEM; geochronology; processes; cosmochemistry
Activity
The objective of the present post doc will be to implement the developments made on the prototype (COSMO-SAT) on a selection of well-characterized samples of ancient terrestrial (Archean to Hadean) and extraterrestrial samples (Martian meteorites) down to the micro-scale. The post doc will focus essentially on phosphate minerals (e.g. apatite, merrillite, tuite) from ancient rocks (e.g. Western Dharwar craton, India), and extraterrestrial samples (e.g. “Black Beauty” Martian meteorites).
At the same time, transmission electron microscopy (TEM) will be performed at LGL-TPE in order to develop cross-correlative analyses of atom probe specimen prepared by FIB and observed by TEM, thus combining isotopic analyses with structural analyses at the nanometric scale.
Your Profil
Skills
The targeted candidate should hold a PhD in Earth and planetary Sciences, and be highly motivated by analytical work and material characterization. Moreover, advanced knowledge in geochronology, early Earth, and small-scale analytical techniques are pre-requisites for the successful completion of this project. Prior experience on FIB preparation, APT or TEM would be an advantage.
Your Work Environment
The present postdoctoral project will be mostly based at LGL-TPE in Saint-Etienne (https://lgltpe.fr/) in a completely new building on the manufacture campus of the University Jean Monnet (https://lgltpe.fr/inauguration-du-batiment-sciences-manufacture-de-lujm/) with Anne-Magali Seydoux-Guillaume (FIB/TEM developments). Significant time will be spent at Groupe de Physique des Matériaux (GPM) in Rouen (https://gpm.univ-rouen.fr/) where the COSMO-SAT APT is hosted. Regular visits to Laboratoire Magmas et Volcans in Clermont-Ferrand (https://lmv.uca.fr/) are also planned, mainly for scientific meetings with partner researchers specialized in primitive earth and Mars geochemistry and geochronology (Martin Guitreau and Maud Boyet).
Constraints and risks
Participation in the atom probe school in Rouen (2-7 November 2026) is mandatory.
Compensation and benefits
Compensation
Between 3 041€ and 4 668€ brutto per month depending on experience. Salaries include Health and Retirement benefits.
Annual leave and RTT
44 jours
Remote Working practice and compensation
Pratique et indemnisation du TT
Transport
Prise en charge à 75% du coût et forfait mobilité durable jusqu’à 300€
About the offer
| Offer reference | UMR5276-ANNSEY-001 |
|---|---|
| CN Section(s) / Research Area | Earth and telluric planets: structure, history, models |
| Relevant experience | 1 to 4 years |
About the CNRS
The CNRS is a major player in fundamental research on a global scale. The CNRS is the only French organization active in all scientific fields. Its unique position as a multi-specialist allows it to bring together different disciplines to address the most important challenges of the contemporary world, in connection with the actors of change.
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