The death of supercontinents brings diamonds to the surface.

The article focuses on new research explaining the origin and timing of kimberlite volcanoes, which are rare, diamond-bearing eruptions occurring in ancient continental interiors rather than typical volcanic zones. Geologists propose that these eruptions are triggered by deep mantle waves—slow-moving convective vortices generated by the breakup of supercontinents—that travel beneath continents and induce kimberlite magmatism millions of years after rifting events. This model, supported by geological and isotopic evidence from regions like southern Africa and South America, suggests a link between tectonic plate movements and mantle dynamics, offering insights into deep Earth processes and potential diamond exploration. While the theory is not yet confirmed globally, it provides a testable hypothesis that may reshape understanding of continental volcanism beyond traditional mantle plume explanations.