The intricate interactions among the biosphere, geosphere, and hydrosphere within microbial habitats present a fascinating area of study, attracting interdisciplinary research from the Earth and Planetary Sciences community. This session aims to delve into the mechanisms of mineral formation in microbialites, where exopolymeric substrates significantly influence redox and alkalinity conditions on microscales. Understanding the genesis and diagenesis of biominerals under such conditions is crucial, as it sheds light on past environmental parameters and provides potential chemical markers for ancient microbial activity. It is also important to discuss how the specific microenvironments provide changing taphonomic windows for preserving microbial remains and various alteration stages in organic matter.

We invite contributions that showcase recent advancements in geochemical analyses, including in-situ trace element mapping, precise dating of lithified microbial mats, and the examination of traditional and stable metal isotope compositions in minerals such as pyrite, apatite, barite, and carbonate, alongside organic matter within microbialites and their surrounding fluids. Additionally, we encourage submissions that explore modeling and field experiments related to carbon storage capabilities in microbial-induced carbonates.

This session aims to foster a comprehensive understanding of the dynamic interactions within microbialites and their environmental implications. By bringing together the latest research and innovative methodologies, we hope to highlight the role of microorganisms in shaping our planet's geological and chemical landscape.