In a groundbreaking study published in Nature Communications, researchers have unveiled a fascinating phenomenon occurring deep within Earth's mantle. The team, led by Pan F., Wu X., and Wang C., discovered iron disproportionation reactions within peridotite fragments extracted from the mantle transition zone, a region located 410 to 660 kilometers beneath the surface.
This process, where iron changes its oxidation states, has significant implications for the planet's dynamics. The research showed that iron can exist in multiple forms under extreme pressure and temperature, impacting the conductivity, density, and seismic properties of the transition zone.
The discovery, achieved through advanced experiments and spectroscopic analyses, could revolutionize our understanding of Earth's internal processes. It also offers insights into the formation and geodynamic activity of other rocky planets, making it a pivotal advancement in Earth sciences.