ROCKEATERS: Data from rocks colonized by free-living microorganisms and symbiotic associations, Deception Island 2023

Rocks from polar regions are colonized by free-living microorganisms and symbiotic associations such as lichens, constituting the most important, and sometimes the only, habitat for terrestrial life in those environments. The colonization of the lithic substrate involves and is favored by mineral transformations resulting from synergic biogeophysical and biogeochemical actions that induce rock bioweathering.

We hypothesize that the mutual affinity between biotic and abiotic components could play an active role in rock weathering, nutrient cycling, and soil-forming processes, affecting the function and temporal evolution of terrestrial polar ecosystems at a greater scale. The main objective of this project is to investigate the specificity of microbial-mineral interactions involved and the biological and geochemical drivers of these processes in order to define their effect at broader scales.