Video: Geologists explore the history of cave ice
Christoph Spötl and Gabriella Koltai from the University of Innsbruck investigate the Eisriesenwelt in Werfen in the province of Salzburg, one of the biggest ice caves worldwide.
The researchers sample frozen water that is about 5000 years old. And they find evidence that the extent of underground glaciers in this 40 kilometer-long cave was much larger in the past.
Provided by University of Innsbruck
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Video: Geologists explore the history of cave ice (2021, March 19)
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