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Researchers Allie Belter (left) and Gregory Balco hike towards the Shackleton Glacier spilling over a section of Roberts Massif. Dating The East Antarctic Ice Sheet
Science / Ice and Snow
Wednesday June 14, 2017

The history of the East Antarctic Ice Sheet is written in stones along the Transantarctic Mountains. Over the past two years, researchers ventured to remote areas along the mountain range to decipher how high ancient glaciers reached, by studying the rocks they left behind. By measuring the amount of cosmic radiation the rocks have been exposed to, the research team can map out the reach of ancient glaciers at different points in the past.
The scientists and drillers set up camp at the foot of Mount Tidd in the Pirrit Hills. Ancient Ice Levels
Science / Ice and Snow
Thursday April 20, 2017

Today, a massive sheet of ice covers nearly all of West Antarctica, but it hasn't always been that way. Over the past few hundred thousand years, researchers think that the ice sheets have waxed and waned, varying in size as the region's climate changed. To gather evidence of how dynamic the ice cover has been in the past, John Stone of the University of Washington and his team traveled to a remote region of the continent this past season.

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Curator: Michael Lucibella, Antarctic Support Contract | NSF Official: Peter West, Office of Polar Programs