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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.
E-Mail 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 ...
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 ...