Geology

183 cards. Each one is a 40-second story with a five-minute read behind it. Page 4 of 4.

The Bahia emerald: a geological anomaly caught in a legal battleA gemstone so valuable it has inspired decades of conflict and even a restraining order. Discover the strange geological conditions that allow the Bahia emerald to exist and the u…
A massive, hidden biosphere thrives deep within the Earth's crustBeneath our feet lies a world of extreme survival. Far below the surface, an immense biological realm exists in total darkness, enduring crushing pressure and intense heat. This h…
The man who said continents move was right, and was laughed at for decades.In 1912 Alfred Wegener argued that the continents had once been joined in a single landmass and had drifted apart. Most geologists rejected it: nobody could say what force could p…