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Stanford researchers say living corals thousands of years old hold clues to past climate changes
Date:2/14/2008

er black coral Leiopathes glaberrima. Another tree-like skeleton, it has life spans in excess of 4,000 yearssome of these corals began growing just a few hundred years after the great pyramids were built in Giza and are still alive today.

At the AAAS meeting, Roark, a paleoceanographer, will be presenting the results from a collaborative project focused on geochemical records of past oceanographic and climate variability, as recorded in six different species of deep-sea corals. The preliminary results suggest the possibility of reconstructing subsurface temperature variability and changes in ocean circulation.

Coral samples were collected in waters as deep as 1,500 feet at the Makapu'u deep-sea coral bed off the southeast coast of Oahu, Hawaii. Researchers went down in the Hawai'i Undersea Research Laboratorys submersibles, Pisces IV and V.


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Contact: Dan Stober
dstober@stanford.edu
650-721-6965
Stanford University
Source:Eurekalert

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