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An ancient landscape hidden under the East Antarctic ice sheet for at least 14 million years has been revealed with the help of satellite data and planes equipped with ice-penetrating radar.An ancient landscape hidden under the East Antarctic ice sheet for at least 14 million years has been revealed with the help of satellite data and planes equipped with ice-penetrating radar.
“The land underneath the East Antarctic Ice Sheet is less well known than the surface of Mars,” Jamieson said in a statement. The well-preserved nature of the landscape makes it particularly special. It is rare to find relatively unmodified landscapes underneath a continental ice sheet — normally the movement of the ice as it fluctuates in size and moves would erode and grind down the relic landscape, Jamieson said.
“In other areas, we’d actually expect there to be liquid water, right between the ice and the bed, which helps grind stuff away. We don’t have that in our location. So that partly explains how something could survive for so long,” Jamieson explained in a phone interview.
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