Japanese scientists have found evidence that 770,000 years ago, Earth's magnetic poles were in the opposite position, NHK reported.
According to the TV channel, in the Japanese prefecture of Chiba along the Yorogawa River, a geological layer was discovered, rock samples in which indicate the time of the pole change. An analysis of fragments of rock that received magnetic irradiation shows that 770 thousand years ago, the South magnetic pole of the Earth was located at the site of the North Pole. At the turn, which falls on a time in 770 thousand years ago, the Earth's magnetic poles have reversed.
The names of geological periods and stages in them, as a rule, correspond to the geographical location of the characteristic geological layer. On this basis, Japanese geologists intend to nominate Chiba Prefecture as a candidate in June to give the name to the entire period 770-120 thousand years ago. In this case, the period will be called Tibany.
In addition to Chiba Prefecture, two Italian cities also claim to give this period their name, but Japanese scholars believe that the findings of Chiba Prefecture most clearly reflect the main revolutionary feature of the changes that took place in it. In this case, the assignment of a name to a geological period for an area located in Asia will occur for the first time.
Ksenia Naka
