Ancient rocks reveal when Earth's tectonic engine 'switched on'
Scientists have pinpointed a significant moment in Earth's geological past when its internal processes underwent a major transformation, leading to the formation of the planet's modern crustal features. This shift occurred approximately 2.5 billion years ago and marked a crucial turning point in the development of our planet's tectonic system. The changes that took place during this period laid the groundwork for the ongoing geological activity we see today.
Why it's good news: It allows us to better understand the complex processes that have shaped our planet over millions of years, providing valuable insights into Earth's history and evolution.
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