1.7 Billion Year Old Piece of North America Found In Australia, Supports Theory of Super Continent
Reportedly, geologists from Curtin University have recently discovered that a place in Australia was once a part of North America. And this new piece of evidence bolsters the idea that two continents were once a one big ‘Super Continent’ around two billion years ago. Researchers from the Curtin University of Australia discovered that the sedimentary sandstone in one of the regions of northern Australia hardly resembles the other rock compositions in the continent. In fact, the rocks strongly resemble ones that can be found in Canada, North America. The research paper revealing about this discovery was published in the scientific journal called Geology. Researchers believe that the rock which is under the Georgetown, Australia was once a part of North America’s Laurentia and the same broke away around 1.7 billion years ago.
After drifting for millions of years it finally got attached to Australia. “Our research shows that about 1.7 billion years ago, Georgetown rocks were deposited into a shallow sea when the region was part of North America. Georgetown then broke away from North America and collided with the Mount Isa region of northern Australia around 100 million years later. This was a critical part of global continental reorganization when almost all continents on Earth assembled to form the supercontinent called Nuna,” co-author Adam Nordsvan, a student at Curtin University’s School of Earth and Planetary Sciences, said in the press statement.
As per Live Science’s report, most recently all the landmasses came together to form a supercontinent called Pangea. Apart from Pangea, there are studies that suggest many supercontinents were present and one of them was famous Nuna which broke apart 300 million years ago (also known as Columbia). What are your views on same? Let us know in the comments below.