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IPFS News Link • Environment
Source of Antarctica's Eerie 'Bleeding Glacier' Found
• http://www.livescience.com, by Becky OskinThe Dry Valleys are almost entirely ice-free, except for a few isolated glaciers. The only surface water is a handful of small lakes. Inside the canyons, the climate is extremely dry, cold and windy; researchers have stumbled upon mummified seals in these gorges that are thousands of years old.
Yet there is life in this extreme landscape. For instance, bacteria living under Taylor Glacier stain its snout a deep blood red. The rust-colored brine, called Blood Falls, pours into Lake Bonney in the southernmost of the three largest Dry Valleys. The dramatic colors offer shocking relief to senses overwhelmed by the glaring white ice and dull brown rocks.
Now, for the first time, scientists have traced the water underneath Taylor Glacier to learn more about the mysterious Blood Falls. In the process, the researchers discovered that briny water underlies much of Taylor Valley. The subsurface network connects the valley's scattered lakes, revealing that they're not as isolated as scientists once thought. The findings were published today (April 28) in the journal Nature Communications.