Geochemical evidence

Geochemical evidence refers to the analysis of chemical elements and their isotopes in rocks, minerals, and other Earth materials to understand geological processes. By studying the composition and ratios of these elements, scientists can trace events like the formation of Earth, volcanic activity, or the movement of tectonic plates. This evidence helps reconstruct Earth's history and the evolution of its surface and interior. Essentially, geochemists use chemical clues preserved in rocks to piece together the story of Earth's past, much like forensic scientists use clues to solve a mystery.