Specific microaggregates and problematic microfossils as satellites of biochenogenic rocks

Pseudomorphs are formed along the envelopes of whole and destroyed cells as a result of a high rate of fossilization in microbial ecosystems. The destroyed cells may be mistaken for chemogenic formations of colloidal compounds, in particular, aqueous silicon dioxide. This paper focuses on microfacie...

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Published inPaleontological journal Vol. 48; no. 14; pp. 1552 - 1556
Main Authors Leonova, L. V., Litvinova, T. V., Glavatskikh, S. P.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 01.12.2014
Springer
Springer Nature B.V
Subjects
Biofilms
Earth and Environmental Science
Earth Sciences
Ecosystems
Electron microscopy
Fossilization
Microfossils
Paleontology
Pseudomorphs
Silica
Spectrometry
uncommon microcrystals of biominerals
prokaryotic microfossils
mineralized biofilms and fragments of covers
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Summary:Pseudomorphs are formed along the envelopes of whole and destroyed cells as a result of a high rate of fossilization in microbial ecosystems. The destroyed cells may be mistaken for chemogenic formations of colloidal compounds, in particular, aqueous silicon dioxide. This paper focuses on microfacies, which are either mineralized biofilms or fragments of fossilized bacterial envelopes, as shown by electron microscopy and energy-dispersive spectrometry. In particular, we establish the biomineral origin of a number of mineral aggregates of specific appearance found in the samples studied: stromatolites and segregations.
ISSN:0031-0301
1555-6174
DOI:10.1134/S0031030114140068