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Ice core research

Ice core research

E220/0056

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Credit

PASQUALE SORRENTINO / SCIENCE PHOTO LIBRARY PASQUALE SORRENTINO / SCIENCE PHOTO LIBRARY

Caption

Ice core research. Samples of water melted from an Antarctic ice core sample. These will be analysed by methods such as ion chromatography, used to identify ions in the water. Concentrations of parts per billion can be detected, revealing the composition of the air and dust trapped in the ice. Ice cores are obtained by drilling deep into an ice cap formed by hundreds of thousands of years of snowfall. Analysis of the ice core can reveal changes in climate during this time. This ice core is from Dome C on the East Antarctic plateau. It has been obtained as part of the European EPICA project (2001-5) that has obtained ice cores to a depth of three kilometres, looking 900,000 years into the past.

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