Paleontological Journal

, Volume 52, Issue 10, pp 1172–1178 | Cite as

Traits of Biomorphic Structure Formation in Kamchatka Geyserites

  • E. A. ZhegalloEmail author
  • L. V. ZaytsevaEmail author
  • V. K. Orleansky
  • O. S. SamylinaEmail author
  • G. A. KarpovEmail author


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.


geyserites Kamchatka cyanobacteria EPS silicification 



This work was partially supported by the Program of the Presidium of the Russian Academy of Sciences “The evolution of the organic world and planetary processes” (subprogram II) and the Russian Foundation for Basic Research (project nos. 15-04-00774, 16‑04-00758, and 17-04-00324).


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© Pleiades Publishing, Ltd. 2018

Authors and Affiliations

  1. 1.Borissiak Paleontological Institute, Russian Academy of SciencesMoscowRussia
  2. 2.Winogradsky Institute of Microbiology, Federal Research Center “Fundamentals of Biotechnology,” Russian Academy of SciencesMoscowRussia
  3. 3.Institute of Volcanology and Seismology, Far East Branch, Russian Academy of SciencesPetropavlovsk-KamchatskiiRussia

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