Traits of Biomorphic Structure Formation in Kamchatka Geyserites

Resumo

Microstructures of silicic rocks shaped by the activity of thermophilic bacterial communities in active volcanism areas of Kamchatka are described in the present article. The role of microorganisms as a special matrix that accelerates the formation of microlayered rocks of mixed chemogenic and biogenic origin is demonstrated. The authors suggest the term “biosilicites” for such rocks.