Analysis of the resulting rock core offers fresh clues about ... he and his colleagues initially planned to bore 200 metres into the mantle with the drilling ship JOIDES Resolution, deeper than ...
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Scientists drill nearly 2 miles down to pull 1.2 million-year-old ice core from AntarcticThe same team previously drilled a core about 800,000 years old. The latest drilling went 2.8 kilometers (about 1.7 miles) deep, with a team of 16 scientists and support personnel drilling each summer ...
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