Study shows South Africa, India and Australia shared similar volcanic activity 3.5 billion years ago
Thursday, June 8, 2023 - 15:53
in Earth & Climate
Cratons are pieces of ancient continents that formed several billions of years ago. Their study provides a window as to how processes within and on the surface of Earth operated in the past. Cratons preserve relics of our young Earth as they host a variety of rock assemblages such as greenstones and granites. Greenstones are rock assemblages that are primarily composed of sub-marine volcanic rocks with minor sedimentary rocks. They are the best archives to study early Earth surface processes.