Atacama Desert bacteria drive mineral and metal concentration

Researchers from the University of Concepción’s Institute of Applied Economic Geology have identified how microbial communities in the Atacama Desert participate in complex mineralization processes. According to a study published in the Geomicrobiology Journal, these extremophile bacteria interact with minerals in the Salar de Atacama, leading to the concentration of metals and metalloids within mineral structures.

The Atacama Desert provides an extreme environment characterized by high aridity, intense ultraviolet radiation, and high salinity. These conditions allow for the study of metalotolerant microorganisms that can thrive despite the presence of potentially toxic elements. The research clarifies that these bacteria contribute to biomineralization, effectively transforming and concentrating minerals in these harsh landscapes.