Plate tectonics fired up at least 3 billion years ago, study of ancient rocks in Australia indicates
![Plate tectonics fired up at least 3 billion years ago, study of ancient rocks in Australia indicates](https://cdn.mos.cms.futurecdn.net/qVHvHjdLqJcY8t7Ht7TDvG.jpg)
Researchers have discovered the world's oldest known arc-slicing fault in Australia, intensifying the debate over the origins of plate tectonics.
Researchers have discovered the world's oldest known arc-slicing fault in Australia, intensifying the debate over the origins of plate tectonics.