Scientists have discovered evidence of a massive ancient undersea landslide next to Australia's Great Barrier Reef. Dr Robin Beaman, a member of the Research team said that they have located a cluster of hills, or knolls, more than 1,100 meter beneath the surface. Named as "The Gloria Knolls Slide" is at least 300,000 years old and 32 cubic kilometer in volume, or 30 times the size of Uluru, a rock landmark in central Australia.<br/><br/>The research, published in the journal Marine Geology, said debris from the landslide provided clues about hidden marine life. It also said the landslide had the potential to cause a large tsunami.The team consisting of Researchers from various universities, made the discovery while conducting three-dimensional mapping of ancient reefs in the Queensland Trough, a vast basin adjoining the Great Barrier Reef.