1.7-Billion-Year-Old Chunk of North America Found Sticking to Australia
Geologists matching rocks from opposite sides of the globe have found that part of Australia was once attached to North America 1.7 billion years ago. Researchers from Curtin University in Australia examinedrocks from the Georgetown region of northern Queensland. The rocks — sandstone sedimentary rocks that formed in a shallow sea — had signatures that Read more about 1.7-Billion-Year-Old Chunk of North America Found Sticking to Australia[…]