Giant sand mounds beneath the North Sea have puzzled scientists for years. Now, researchers have discovered that these mysterious structures were created by a geological process that has never been seen on such a huge scale.
Seismic data and rock samples from the northern North Sea, off the coast of Norway, suggest that these miles-wide mounds sank millions of years ago, lifting up older, less-dense "ooze" beneath. The findings could help scientists learn more about future carbon storage options, the researchers wrote in the new study, which was published June 21 in the journal Communications Earth and Environment.
