Abstract

Existence of diverse microorganisms, bacteria (? Cyanobacteria) in the Early Precambrian (Archaean and Early Proterozoic) weathering crusts is determined. Presence of eukaryots can’t be excluded also. So it is possible to speak about the colonization of land by microbes already at that time and about existence of single series from weathering crusts (primitive soils) to real soils.

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