The oldest shocking crater on Earth was found in the Pilbar area in western Australia formed no more than 2.7 billion years ago, and no 3.47 billion years ago, as thought before. New research Opublikovano Scientific progress.
According to scientists, crater may be younger. This is indicated by the destroyed cone sets – a characteristic mark of shocking waves in the breed, only formed under the impact of extreme pressure in a collision with the cosmic body. In the case of repetitive verification, scientists have discovered that the trace of the shot is present in younger classes, including lava stones, forming 2.77 billion years ago. This fact indicates that the meteorite falls later than the formation of these rocks.
Therefore, scientists believe the crater was formed from 2.7 billion to 400 million years ago. The study also said that its actual diameter was only about 16 km, and not more than 100 km, as indicated in the initial estimates.