
Rodinia breakup
The Rodinia breakup refers to the process around 750 million years ago when the ancient supercontinent Rodinia fractured into smaller landmasses. This breakup was driven by tectonic forces such as rifting and mantle convection, which caused Earth's crust to stretch and split. As a result, continents drifted apart, creating new oceanic environments and influencing global climate and biological evolution. This event laid the groundwork for subsequent continental arrangements and eventual supercontinent cycles, shaping the Earth's geological and biological history over millions of years.