Ice age valleys give clues to future ice sheet change miragenews.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from miragenews.com Daily Mail and Mail on Sunday newspapers.
New high resolution images of the the seafloor in West Antarctica show Thwaites Glacier retreat in the past. They reveal that at times in its past, retreat of the massive Thwaites Glacier was even quicker than it is today, heightening concerns for its future.
New seafloor images of West Antarctic Ice Sheet upend understanding of Thwaites Glacier retreat miragenews.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from miragenews.com Daily Mail and Mail on Sunday newspapers.
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Boulder, Colo., USA: The Geological Society of America regularly publishes
articles online ahead of print. For April,
GSA Bulletin topics
include multiple articles about the dynamics of China and Tibet; new
insights into the Chicxulub impact structure; and the dynamic topography of
the Cordilleran foreland basin. You can find these articles at
https://bulletin.geoscienceworld.org/content/early/recent
.
Tectonic and eustatic control of Mesaverde Group
(Campanian-Maastrichtian) architecture, Wyoming-Utah-Colorado region,
USA
Keith P. Minor; Ronald J. Steel; Cornel Olariu
Abstract:
We describe and analyze the depositional history and stratigraphic
architecture of the Campanian and Maastrichtian succession of the southern
Credit: Filip Stedt
For the first time, researchers have been able to obtain data from underneath Thwaites Glacier, also known as the Doomsday Glacier . They find that the supply of warm water to the glacier is larger than previously thought, triggering concerns of faster melting and accelerating ice flow.
With the help of the uncrewed submarine Ran that made its way under Thwaites glacier front, the researchers have made a number of new discoveries. Professor Karen Heywood of the University of East Anglia commented: This was Ran s first venture to polar regions and her exploration of the waters under the ice shelf was much more successful than we had dared to hope. We plan to build on these exciting findings with further missions under the ice next year.