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A glass beaker holds orange microbial material slurped up by Camper?s vacuum sampler, as well as tiny black shards of volcanic glass that covered large areas of the Gakkel Ridge seafloor. Chemical analyses of these may provide evidence of unusually explosive seafloor volcanism, which is rare under the tremendous pressure more than 2.5 miles below the ocean surface.
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Posted: April 15, 2008
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