Eclogite samples found in China push modern-type subduction events back to 2.5 billion years ago
A team of researchers from China University of Geosciences, has concluded that eclogite samples found at the northern Central Orogenic Belt within the North China Craton, show that modern-type subduction events occurred on Earth as far back as 2.5 billion years ago. They published their work in Proceedings of the National Academy of Sciences.