supercontinent

/soo-per-kon-tn-uhnt/US // ˌsu pərˈkɒn tn ənt //UK // (ˈsuːpəˌkɒntɪnənt) //

超大陆,超级大陆,超大陆体,超洲

Definitions

n.名词 noun

1
Geology.
- : a hypothetical protocontinent of the remote geologic past that rifted apart to form the continents of today.

So it was that about 300 million years ago, tectonic plates again squeezed together — this time to create a supercontinent called Pangea.
Progress toward complexity stalled during the “boring billion” era, the roughly billion-year reign of the supercontinent Nuna-Rodinia.
Eventually the supercontinent broke apart, and new mountains grew and exported nutrients again.
Science aside, it’s fascinating to travel so far into the past, when just three oceans—the Mirovoi Ocean, Mozambique Ocean, and Mawson Sea—lapped at the shores of supercontinent Rodinia.