Remusat Lab

National Centre for Scientific Research (CNRS)

Ile-de-France (FR1) · France

ERC-funded
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Research focus

ERC Consolidator Grant · 2018

Origin and evolution of organic matter in carbonaceous chondrites: influence of hydrothermal processes

Carbonaceous chondrites (CC) are believed to be fragments of carbonaceous asteroids from the asteroidal belt. They contain up to 4wt% of organic compounds, showing a huge diversity and extremely variable H and N isotope compositions. These isotope compositions can relate to synthesis environments but the exact nature of the processes that influenced the formation of organic compounds in CC remains unresolved. Part of the issue comes from the occurrence of hydrothermal alteration on the chondrites that exhibit the largest content in organic matter. Hydrothermalism may have modified the chemical and isotopic signature of organic molecules, but the extent of these modifications is not yet…

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