LOMs Team PhDs

October 2022

In progress

Subsurface life in deep aquifers and impact of microbial activity on karstification processes

Karst systems represent an important carbon reservoir sequestered in the form of limestones as well as an important freshwater reservoir. They are als...

September 2022

In progress

Mineral reactivity and microbial diversity associated with water-basalt interactions in subsurface conditions

The aim of this PhD project is to provide a realistic assessment of the contribution of microorganisms to silicate weathering rates in subsurface basa...

October 2021

In progress

The fate of crustal carbonaceous matter in subduction zones and its implications for diamond formation

Recent thermodynamic and experimental studies have suggested that organic compounds can be stable in subduction zones up to high pressures and tempera...

September 2021

In progress

Redox gradients, microbial biofilms and biogeochemical cycles in the Critical Zone

In Critical Zone, most microorganisms organize themselves in biofilms. These complex structures, of limited elements diffusion, are still poorly under...

September 2019 - June 2023

Defended

Thermal analysis of (bio)carbonates for the search for traces of life in extraterrestrial environments

The search for organic compounds related to life in extraterrestrial environments is currently the main strategy to highlight a possible extinct or ex...

September 2019 - December 2022

Defended

Tracking the long term carbon cycling in subduction zones

The long-term carbon cycle has major implications on a global scale, notably on the atmosphere composition and on the emergence and persistence of lif...

October 2018 - July 2022

Defended

Biological, structural, and chemical controls on manganese mineralization

In natural environments, microorganisms are mostly organized in the form of biofilms, composed of microbial cells and self-secreted extracellular poly...

September 2016 - June 2020

Defended

Influence of the alteration of (ultra)mafic rocks on the diversity and adaptation of associated microbial communities

The subsurface is considered as the largest habitat on Earth hosting the majority of microbial biomass and species diversity. The oceanic crust consti...

September 2015 - January 2019

Defended

Role of reactive oxygen species and bacterial exopolymeric substances in manganese biomineralization

The aim of this PhD project was to determine what are the local physico-chemical factors that trigger the precipitation of manganese in biofilms using...