US EditionNewly discovered ancient river landscapes may control ice flow in East Antarctica
10 Articles
10 Articles
Antarctica is the most isolated continent in the world and the coldest place on Earth, and still retains great secrets for science, which are gradually being revealed.A group of researchers led by the University of Durham (United Kingdom) have discovered remains of landscapes believed to have formed when ancient rivers flowed through East Antarctica, which could help predict the future loss of the ice layer.The authors of the study, published in…
An ancient river landscape preserved beneath the East Antarctic Ice Sheet
The East Antarctic Ice Sheet (EAIS) has its origins ca. 34 million years ago. Since then, the impact of climate change and past fluctuations in the EAIS margin has been reflected in periods of extensive vs. restricted ice cover and the modification of much of the Antarctic landscape. Resolving processes of landscape evolution is therefore critical for establishing ice sheet history, but it is rare to find unmodified landscapes that record past i…
Remains of ancient river landscapes control East Antarctica ice flow (Newcastle University)
) Researchers led by Durham University, UK, examined radar measurements of ice thickness and found extensive, previously unmapped, flat surfaces buried beneath a 3,500 km stretch of the East Antarctic coastline. These surfaces were once connected and it is believed were formed by large rivers after East Antarctica and Australia broke apart approximately 80 million years ago, and before ice covered Antarctica about 34 million years ago. The flat …
A mysterious plain has been discovered beneath the East Antarctic ice sheet.
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