Rodinia Supercontinent Formation

Around 1.1 billion years ago, Earth's landmasses assembled into the supercontinent Rodinia. This massive supercontinent formed through the convergence of fragments from a previous landmass called Columbia. The assembly of Rodinia was marked by significant mountain-building events worldwide, known as the Grenvillian Orogeny. The core of Rodinia was likely the landmass that would later become North America (Laurentia), surrounded by other continental fragments. Rodinia existed for about 350 million years before beginning to break apart around 750 million years ago.