Subduction already at work on Earth 4 billion years ago
Geochemical analysis of 4-billion-year-old samples has identified the processes that led to their formation. A team led by IPGP scientists has demonstrated that plate tectonics were already operational very early in the planet's history, and that the early Earth's atmosphere was then rich in CO2.
![Subduction already at work on Earth 4 billion years ago](https://www.ipgp.fr/wp-content/uploads/2023/06/IPGP_Antonelli_Moynier_GranitoideYellowknife_0521-1-1571x711.jpg)
Publication date: 05/05/2021
Press, Research
Related teams :
Cosmochemistry, Astrophysics and Experimental Geophysics (CAGE)
Related themes : Origins