Long-Term Sustainability of a High-Energy, Low-Diversity Crustal Biome
Journal
Science
Journal Volume
314
Journal Issue
5798
Pages
479-482
Date Issued
2006
Date
2006
Author(s)
Abstract
Geochemical, microbiological, and molecular analyses of alkaline saline groundwater at 2.8 kilometers depth in Archaean metabasalt revealed a microbial biome dominated by a single phylotype affiliated with thermophilic sulfate reducers belonging to Firmicutes. These sulfate reducers were sustained by geologically produced sulfate and hydrogen at concentrations sufficient to maintain activities for millions of years with no apparent reliance on photosynthetically derived substrates.
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Type
journal article
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