Sentences with phrase «huge supercontinent»
Earth was at its most active 1.1 billion years ago, when all the continents collided into one huge supercontinent, and has been getting calmer ever since.
https://www.newscientist.com/ Not exact matches
Last week, Ernst told a meeting of the American Geophysical Union in Toronto that the key to the new map was accurately dating huge lava fields that formed before and during the fracturing of supercontinents.