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Ocean science

Ancient burial at sea

A study reveals cyclic changes in the rate of burial of biogenic calcium carbonate at the Pacific ocean floor 43 million to 33 million years ago, as Earth exited a warm 'greenhouse' state to become an ice-capped planet. See Article p.609

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Figure 1: Cores for thought.



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Correspondence to Heather Stoll.

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Stoll, H. Ancient burial at sea. Nature 488, 596–597 (2012).

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