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PhD position at ISTERRE (Univ. Grenoble, France) in experimental geochemistry

Research collaboration with Shell

Abiotic reactivity of minerals at elevated H2 concentrations

Experiments and reactive transport modeling applied to deep aquifers

Starting date: beginning 2022

Duration: 36 months

PhD supervisors (ISTerre):  Prof Laurent Truche & Dr Roland Hellmann, phone: (+33) 4 76 51 40 54

PhD work and schedule: The proposed PhD thesis aims at exploring fluid-rock alteration processes at play within deep aquifers pressurized with H2. The first part of the project is dedicated to measuring kinetic dissolution parameters of individual phases, including sulfides (pyrite) and ferrous minerals (hematite, nontronite, biotite) in simplified experimental systems. The experiments will measure the dissolution rates as a function of temperature, pH, H2 partial pressure, and salinity in Ti batch reactors equipped for fluid and gas sampling. Analyses of fluids and gases include H2S and H2 analyses, as well as aqueous chemical compositions. Post-reaction mineral phases will be characterized by a suite of complementary techniques: XRD, FESEM, Mössbauer, FIB-TEM, µRaman, and eventually STXM-XANES. The second part of the project aims at evaluating the reactivity of reservoir rocks (clastic rocks) and caprocks (mudstones) in the presence of H2 and saline fluids. The design of the experiments will be similar to part 1, but the conditions will be chosen to mimic as close as possible the temperature, fluid composition, and H2 pressure of relevant reservoirs. The third part will incorporate the rate laws previously derived into 1D/2D reactive transport models to assess H2 abiotic reactivity under reservoir conditions. This part of the project will involve close collaboration with a research group at Shell.

Prerequisites and applications: Applicants should hold a Masters degree in Geology, Chemistry or Physics by 31 January 2022. We seek a highly motivated person, particularly interested in mineralogy, geochemistry and hydrothermal processes, and having considerable experience in laboratory-based experimental and analytical work. Candidates should have a strong background in chemistry and thermodynamics. Knowledge of French is not mandatory, but the candidate must have an excellent command of written and spoken English.

See the full advertisement here

Tier I Canada Research Chair in Metallogeny
The Harquail School of Earth Sciences (HES) and Mineral Exploration Research Centre (MERC) at Laurentian University invite applications for a Tier I Canada Research Chair in Metallogeny that integrates ore system research with broad scale tectonic processes. A PhD degree in a related field is required at the time of appointment.

Jan. 15, 2020
Review of applications will begin immediately once the three reference letters have been received, but applications will be accepted until the position is filled.

See full advertisement at Laurentian University, Harquail Earth Sciences, website

Tenure-track Faculty position in mineral deposit geology / Professeure ou professeur en métallogénie
Application deadline: Nov. 15, 2018
Job starting date: May 1st, 2019

English version
Version française