2.9-billion-year-old marine sedimentary rocks from Canada’s Red Lake region reveal areas of oxygen accumulation at a time when the oceans were globally anoxic and iron-rich. These oxygen oases played a […]
A recent study reveals the existence of a uranium isotopic signature specific to oxygen-depleted environments. This discovery could help to better understand the history of the co-evolution between animal life […]
A study conducted by scientists from the Centre for Research on Biodiversity and the Environment (CRBE – CNRS/IRD/Toulouse INP/UT) and the Géosciences Environnement Toulouse laboratory (GET – CNRS/IRD/UT/CNES) reveals that […]
The recent publication of a data paper by a research team including scientists from CNRS Terre & Univers highlights a unique series of measurements of atmospheric mercury on Amsterdam Island, […]
Discover the new article in which Laure Laffont participated in L’université face au désastre écologique, Ecologie & Politique, N°67. This article illustrates the various ways in which researchers have appropriated […]
In 2021, Laure Laffont and Anne-Marie Cousin presented the first panels of their comic strip on mercury. In 2023, they are bringing you an improved and finalised version, which you […]
An international team involving a CNRS-INSU laboratory has determined the isotopic fractionations associated with greenalite, a mineral of the silicate class rich in ferrous iron (Fe2+), and has thus evaluated […]
We study geochemical mechanisms and transfers over a wide range of spatial and temporal scales, from the atom to the field, in various contexts such as fluid-mineral-living interactions, nucleation and […]