Microbial Signatures in Deep CO₂-Saturated Miocene Sediments of the Active Hartousov Mofette System (NW Czech Republic).

ABSTRACT: The Hartoušov mofette system is a natural CO₂ degassing site in the central Cheb Basin (Eger Rift, Central Europe). In early 2016 a 108 m deep core was obtained from this system to investigate the impact of ascending mantle-derived CO₂ on indigenous deep microbial communities and their surrounding life habitat. During drilling, a CO₂ blow out occurred at a depth of 78.5 meter below surface (mbs) suggesting a CO₂ reservoir associated with a deep low-permeable CO₂-saturated saline aquifer at the transition from Early Miocene terrestrial to lacustrine sediments. Past microbial communities were investigated by hopanoids and glycerol dialkyl glycerol tetraethers (GDGTs) reflecting the environmental conditions during the time of deposition r

SUBMITTER: Liu Q 

PROVIDER: S-EPMC7768021 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature