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15-foot hypodermic needles provide evidence for vast oceanic crustal biosphere

e venting end of this system is the one where Johnson and his team drove their hypodermic needles and found abundant microbial life.

"If crustal fluid can flow over large distances in old oceanic crust and can nurture these large microbial populations," Johnson says, "then the chances are good that there is a global-scale biosphere living within the upper oceanic crust. This oceanic crustal biosphere would live at a wide range of temperatures and fluid flow rates, have different chemical environments, have unique entrance and exit ports and would have been exposed to completely different formation histories.

"It's like finding an undiscovered world."


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Contact: Sandra Hines
shines@u.washington.edu
206-543-2580
University of Washington
18-Mar-2003


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