RT6 - Stable Isotopes' Geochemistry

Deciphering ancient oceans using pyrite and iron isotopes

Iron isotopes in pyrite are frequently used to better understand environmental conditions throughout our planet’s history, going back to sedimentary archives dating back billions of years. A team of researchers […]

13.02.2026

MSHS-T thesis prize: congratulations to Louise de Palaminy!

The International Scientific Council of the Maison des Sciences Humaines et Sociales de Toulouse (MSHS-T) has awarded its 2025 Interdisciplinary Thesis Prize jointly to Louise de Palaminy (PhD in Archaeometry) […]

09.02.2026

Oxygen oases in the oceans 500 million years before oxygenation of the atmosphere

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 […]

01.07.2025

How can uranium isotopes help trace the history of the Earth’s oxygenation?

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 […]

13.03.2025

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 […]

27.01.2025

Research teams

Atmospheric mercury: a decade of observations on Amsterdam Island

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, […]

23.01.2024

What ontological plurality does to scientists scientific result?

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 […]

13.11.2023

New version of the Mercury comic book!

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 […]

13.09.2023

Search