Spectacular ice age landscapes beneath the North Sea have been discovered using 3D seismic reflection technology.
Spectacular ice age landscapes beneath the North Sea have been discovered using 3D seismic reflection technology. Similar to MRI (magnetic resonance imaging) the images reveal in unprecedented detail huge seafloor channels – each one 10 times wider than the River Thames.
For the first time an international team of scientists can show previously undetectable landscapes that formed beneath the vast ice sheets that covered much of the UK and Western Europe thousands to millions of years ago. These ancient structures provide clues to how ice sheets react to a warming climate. The findings are published this week (9 September) in the journal Geology.
So called tunnel valleys, buried hundreds of metres beneath the seafloor in the North Sea are remnants of huge rivers that were the ‘plumbing system’ of the ancient ice sheets as they melted in response to rising air temperatures.
Read more at British Antarctic Survey
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