The study of biomineralization in modern hydrothermal vent system is one of the keys to the research and the exploring of the early history of the earth, the evolution of life, the subsurface biosphere and the study of terrestrial planets (such as the Mar). It has in the past decade become one of the focuses of geobiological research with the application of the microelectronic technology and molecular biology technology. Available information indicates that microorganisms play a critical role in the formation of oxyhydroxides (for instance, Fe, Mn, S or Si oxyhydroxide) and silicates in the hydrothermal systems of the earth.
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