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      Biological mediation in ocean crust alteration: how deep is the deep biosphere?

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      Earth and Planetary Science Letters
      Elsevier BV

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          Alteration of basaltic glass: Mechanisms and significance for the oceanic crust-seawater budget

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            Alteration of oceanic volcanic glass: textural evidence of microbial activity

            The subsurface biosphere may constitute as much as 50 percent of Earth's biomass. Direct and indirect evidence suggests that an extensive biosphere exists in the rocks below the sea floor. This survey of basalts of the Atlantic, Pacific, and Indian Oceans supports the hypothesis that bacteria have colonized much of the upper oceanic crust, which has a volume estimated at 10(18) cubic meters. Although this is the largest habitat on Earth, its low abundance of bacteria constitutes much less than 1 percent of Earth's biomass.
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              Evidence for microbial activity at the glass-alteration interface in oceanic basalts

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                Author and article information

                Journal
                Earth and Planetary Science Letters
                Earth and Planetary Science Letters
                Elsevier BV
                0012821X
                March 1999
                March 1999
                : 166
                : 3-4
                : 97-103
                Article
                10.1016/S0012-821X(99)00005-9
                3c6c8466-6d42-47c7-9063-858f5d54ca9e
                © 1999

                http://www.elsevier.com/tdm/userlicense/1.0/

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