Thrombolite - Wikipedia
Thrombolites (from Ancient Greek θρόμβος thrómbos meaning "clot" and λῐ́θος líthos meaning "stone") are clotted accretionary structures formed in shallow water by the trapping, binding, and cementation of sedimentary grains by biofilms of microorganisms, especially cyanobacteria. [1]
Thrombolite - an overview | ScienceDirect Topics
Thrombolite, from the Greek word θρόμβος (thrombus) meaning clot, was first introduced to the geological community in 1960, to refer to “clotted” or nonlaminated microbial deposits.
Microbialites, Stromatolites, and Thrombolites | SpringerLink
Two main types of thrombolite are calcified microbe and coarse agglutinated (Riding, 2000, pp. 192–193). Both intergrade with microbial mat stromatolites and primarily reflect the presence of major components that form irregular aggregates rather than thin layers.
Transition from stromatolite to thrombolite fabric: potential role …
Prior observations suggest that foraminiferan protists use their reticulopodia (anastomosing pseudopodia) to alter sediment fabric by disrupting laminations of subtidal marine stromatolites, erasing the layered structures in an experimental setting.
Aitken (1967) proposed the word thrombolite as a field term for "cryptalgal structures related to stromatolites but lacking lamination and characterized by a macroscopic clotted fabric."
Inner workings of thrombolites: spatial gradients of metabolic …
Jul 27, 2015 · In this study, we used comparative metagenomic and metatranscriptomic analyses to characterize the spatial organization of the thrombolites of Highborne Cay, The Bahamas, an actively forming microbialite system.
How do thrombolites form? Multiphase construction of lacustrine ...
Aug 21, 2021 · Three types of thrombolite, one stromatolite and a leolite are described and interpreted. The thrombolite frameworks include: a peloidal mesoclotted type, a thrombolite constructed by the filamentous alga Cladophorites and a type with concentrically laminated micritic mesoclots.
Characterization of Microbial Mat Microbiomes in the Modern Thrombolite …
Jul 6, 2016 · Results indicated that the microbial community associated with the Lake Clifton thrombolites was predominantly bacterial (98.4%) with Proteobacteria, Cyanobacteria, Bacteroidetes, and Actinobacteria comprising the majority of annotated reads.
Thrombolite fabrics and origins: Influences of diverse microbial …
Jun 28, 2016 · Four thrombolite classes (hemispherical microdigitate, bushy, coalescent columnar and massive fenestrated) contain distinct mesoscale microbial growth structures that can be distinguished from surrounding detrital sediments and diagenetic features.
A year in the life of a thrombolite: comparative ... - PubMed
In this study, we generated metatranscriptomic libraries from actively growing thrombolites, a type of microbialite, throughout diel and seasonal cycles and observed dynamic shifts in the population and metabolic transcriptional activity.