Carbon From Southern Ocean Tied to Last Deglaciation (1 of 4) (IMAGE)
Caption
The carbonate skeletons of fossil deep-sea corals can be used to reconstruct past changes in the ocean. This fossil Desmophyllum dianthus was collected from the Drake Passage in the Southern Ocean from a water depth of 1750 m on cruise NBP08-05. It was alive around 12,300 years ago, and its skeleton provides a record of the chemistry of the seawater in which it grew. This image relates to a paper that appeared in the Dec. 15, 2011, issue of Science Express, published by AAAS. The paper, by A. Burke at the MIT/WHOI Joint Program in Oceanography in Woods Hole, Ma., and colleagues, was titled, “The Southern Ocean’s Role in Carbon Exchange During the Last Deglaciation.”
Credit
Image courtesy of Dann Blackwood, United States Geological Survey
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