The first supercontinent, called Columbia, or Nuna, existed from around 1.7 billion years ago to 1.45 billion years ago in the Precambrian period (4.6 billion to 541 million years ago).

Now a study published in the journal PNAS claims the formation process of these iron deposits was triggered by the breakup of the supercontinent Columbia, which caused massive tectonic activity.

Next up in the supercontinent timeline is Kenorland, followed by Columbia (also known as Nuna), Rodinia, Panottia and Pangaea. In fact, according to Wilkins, plate tectonics will likely smoosh ...

An ancient supercontinent, far older than anything proposed before, has been pieced together by an international team of geologists. The giant landmass, which has been dubbed Columbia, would have ...

Nuna-Columbia was the fourth-last supercontinent, estimated to have broken up around 1.8 billion years ago. Rodinia was then formed from different sections of Nuna-Columbia. Rodinia divided into ...

The primeval supercontinent, which Professor John J.W. Rogers named Columbia, existed more than 1.5 billion years ago and is older than any of several giant landmasses previously proposed.

But while Pangea may be the most famous, it wasn't the first; a number of supercontinents came before it, including Nuna (sometimes referred to as the Columbia supercontinent). Nuna itself split ...