Irish-Scottish rock formation may be rare record of ‘snowball Earth’ period | Geology

Rock formations across Ireland and Scotland could be a valuable record of Snowball Earth, a key moment in Earth’s history when the planet was covered in ice. The study found that the Port Askyg Formation, a layer of rock up to 1.1 kilometres thick, likely formed during the Sturtian Ice Age between 662 and 720 […]