French Biosphère profonde Cited by user Lamiot on 28 Aug 2019 La biosphère profonde est la partie de la biosphère située sous les premiers mètres de la surface.
English Deep biosphere Cited by user RockMagnetist (DCO visiting scholar) on 05 Jul 2019 The deep biosphere is the part of the biosphere that resides below the first few meters of the surface.