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SUB-BASEMENT FOSSIL SOIL CORED FROM THE NORTH PACIFIC (ODP, LEG 197): A MODEL OF THEIR FORMATION AND USE AS ANALOGUES FOR A DEEP SUBSURFACE BIOSPHERE ON MARS

Authors
Publication Date
Aug 09, 2005
Source
SETI Institute
License
Unknown

Abstract

The detection of past/present life buried deep beneath the surface of a planet is a primary step to constrain the presence and evolution of life on that planet. We propose that volcanically-derived fossil soils, which are deeply buried (down to~ 310 mbsf), receive no sunlight, and are primarily anoxic and nutrient-limited, represent a novel potential subsurface biosphere on Earth that may be used as a model to test for extant and extinct life on Mars.

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