| Abstrakt: |
Fine-fibrous kerites of the Volyn region represent mummified remains of cyanobacterial mats that functioned in the thermal geyser spring. Alienation of mat from the substrate and its burial in a dry cavity of the self-sealed biogenic-geyser siliceous structure, where mummification of microorganisms occurred owing to the hydrocarbon component under specific conditions close to those in dry caves, favored the high-degree preservation of primary features of the community biomass (its general life-time structure, microorganism morphology, ultra-fine cell structure, and biochemical marks). Organic matter was destroyed under low temperatures and pressures. Paleomicrobiological analysis of Paleozoic graphites from the Botogol Massif of nepheline syenites (eastern Sayan) indicates that mummified microorganisms from the thermal mat can preserve their morphology even when primary biomass is carbonized up to the most perfect carbon forms. The obtained data can be important both for the interpretation of the origin of most ancient carbonaceous structures of the Earth and for recognition of the mummified remains of microorganisms in meteorites. [ABSTRACT FROM AUTHOR] |
Full text from SpringerLink