Nature Communications (Dec 2022)
Ordovician–Silurian true polar wander as a mechanism for severe glaciation and mass extinction
Abstract
Palaeomagnetic data from South China and compiled reliable palaeopoles from 4 other continents reveals a ~50˚ true polar wander (TPW) event occurring 450–440 million years ago. Sweeping Gondwana across the South Pole, this TPW event induced the Ordovician glaciation and mass extinction.