Geology is truly a fascinating science. It can determine that the Earth was formed 4.5 billion years ago.

It is also the study of rocks which makes it possible to trace the appearance of life back more than 3.8 billion years. What a miracle to have arrived at such a complex representation of the history of our planet, simply by looking at the pebbles that were under our… This article is reserved for subscribers. You have 86% left to discover. Flash sale €4.49/month for 12 months I ENJOY IT Already subscribed? Log in.