Geological Age Named 'chibanian'

Geological age named 'Chibanian'

The International geological organization has decided to name a geological age represented by a 770,000-year-old stratum discovered near Tokyo "Chibanian."

A group of scientists, including those at Ibaraki University and the National Institute of Polar Research, filed a request with the International Union of Geological Sciences to register the stratum as a site representing a geological age.