Missions

In CNRS, ISTO has secured funding from the PEPR Subsurface for its project H-explore. This project aims to develop innovative methods for exploring subsurface gases, enhance the understanding of He-N2 systems, and study regions that have been less investigated. It is highly interdisciplinary, combining favorability mapping, geophysical surveys, geochemical and isotopic analyses, geological expertise, and multi-physics modeling. It involves three research institutes (BRGM as coordinator, ISTerre, and ISTO) and two industrial partners (Geolinks and 45-8, participating with their own funds).

For the part relevant to the ISTO laboratory, the objectives are:

1. To inventory existing data, conduct a state-of-the-art review, and create favorability maps for He-N2 systems. Targeted geochemical and isotopic analyses will be carried out in known and new areas to provide new insights and refine our understanding of He-N2 systems.

2. To implement a new instrument developed at ISTO in collaboration with LPC2E, dedicated to continuous and long-term monitoring of helium, CO2, and nitrogen.

The post-doctoral researcher will be part of the "MadMax" team at ISTO, responsible for these two research axes in coordination with project leaders at ISTO, BRGM, and ISTerre. The researcher will also be tasked with identifying volcanic targets (active volcanoes) and preparing the deployment of one of the new instruments on-site.

Activités

The researcher will contribute to various aspects, including:

- Calibration of portable instruments (mass spectrometers) and field testing
- Collection of gas samples from various sites in the Massif Central
- Analysis of gases using mass spectrometry at ISTO on the instrumental park (Noblesse)
- Technical development of other prototypes
- Identification and initial sampling/analysis on an active volcano where the deployment of a dedicated monitoring instrument is of interest

Compétences

The selection criteria will be as follows:

- Recent PhD in Earth Sciences with a specialization in Noble Gas Geochemistry
- Strong knowledge of geochemistry, volcanology, and gas source mass spectrometry (electron impact)
- Previous experience in analyzing data obtained from monitoring active volcanoes is required
- Excellent command of both English and French, both written and spoken

Contexte de travail

ISTO is a scientific research laboratory with three supervisory bodies: CNRS, Université d'Orléans, and BRGM. It is located on the Orléans-la Source campus (45100), on the CNRS campus.

Le poste se situe dans un secteur relevant de la protection du potentiel scientifique et technique (PPST), et nécessite donc, conformément à la réglementation, que votre arrivée soit autorisée par l'autorité compétente du MESR.

Contraintes et risques

Short-term travel in France and abroad is to be expected.