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Antarctic shoal breaks the ice

Instruments on a massive berg help pinpoint previously unreported undersea ridge

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10:26am, June 24, 2010

During the last couple of decades, scientists poring over satellite images have noticed several large icebergs breaking up as they wafted along a particular stretch of the Antarctic coast. Now, thanks to data gathered in part by an instrument-laden iceberg, the researchers know why: The ice masses were crashing into a previously unreported submarine ridge.

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