Hydrothermal Systems: Doorways to Early Biosphere Evolution
Jack D. Farmer 2000 GSA Today v. 10 no. 7
Hydrothermal systems provide important environments for the synthesis of simple precursor carbon compounds that may have been important in the origin of living systems. Such environments probably also played a primary role in the early evolution of the biosphere. The suggestion of a thermophilic last common ancestor that utilized hydrogen and/or sulfur is broadly consistent with independent geological evidence for the nature of Archean environments on Earth.