The formation of the current Arctic has been going on for over a billion years. But this is far from the only result obtained by scientists from Novosibirsk, representing the local State University and the Institute of Petroleum Geology. According to one of the leaders of the research, D. Metelkin, in the distant past, the Arctic was divided into two parts.
The age of the first is about 1 billion years. After about 250 million years, it “cracked” and split into several parts. Another half a billion years passed before the legendary Pangea was formed - a supercontinent formed from the breakaway and gathered together, but already in a new configuration of parts of the land.
And then everything repeated itself, and again there was a "split" that has happily survived to this day in the form of the well-known northern Russian archipelagos, including the northern regions of Chukotka and Alaska.
The discovery was preceded by 2 decades of intense research. During this time, Russian scientists managed to penetrate the secrets of the ancient magnetic field, which left its mark on the structures of rocks when their formation was just beginning.