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IODP/USIO, Jennifer Magnusson
Microbes Deep in the Oceanic Crust
January 12, 2012 | National Science Foundation

“Of all the habitable parts of our planet, one ecosystem still remains largely unexplored and unknown to science: the igneous ocean crust. While scientists have estimated that microbes living in deep ocean sediments may represent as much as one-third of Earth’s total biomass, the habitable portion of the rocky ocean crust may be 10 times as great.”


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