News From the Field
Southern Flavor in the Arctic
May 1, 2008
Scientists probing volcanic rocks from deep under the frozen surface of the Arctic Ocean have discovered a special geochemical signature, until now found only in the Southern Hemisphere. The rocks were dredged from the remote Gakkel Ridge, which lies under 3,000 to 5,000 meters of water; it is Earth's most northerly undersea-spreading ridge. The study appears in the May 1 issue of the science journal Nature.
The Earth Institute at Columbia University
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