microbialite

plural microbialites

1. geographyA sedimentary or accretionary structure formed by the action of microbes.

   These findings suggest that the molecular differences observed between the communities may be influencing the formation of the distinctive microfabrics of the microbialite deposits.

   2015 July 27, J. M. Mobberley et al., “Inner workings of thrombolites: spatial gradients of metabolic activity as revealed by metatranscriptome profiling”, in Scientific Reports, volume 5, →DOI

   1 more example

   The encrusting micrite is interpreted as a form of microbial micrite; this is termed microbialite (Burne and Moore, 1987) and in this study refers exclusively to inferred microbial carbonates.

   2003, Wayne M. Ahr, Permo-carboniferous Carbonate Platforms and Reefs