A New Approach for Investigating Iron Mineral Transformations in Soils and Sediments Using ⁵⁷Fe-Labeled Minerals and ⁵⁷Fe Mossbauer Spectroscopy.

ABSTRACT: Iron minerals in soils and sediments play important roles in many biogeochemical processes and therefore influence the cycling of major and trace elements and the fate of pollutants in the environment. However, the kinetics and pathways of Fe mineral recrystallization and transformation processes under environmentally relevant conditions are still elusive. Here, we present a novel approach enabling us to follow the transformations of Fe minerals added to soils or sediments in close spatial association with complex solid matrices including other minerals, organic matter, and microorganisms. Minerals enriched with the stable isotope ⁵⁷Fe are mixed with soil or sediment, and changes in Fe speciation are subsequently studied by ⁵⁷Fe Mössbauer spectroscopy, which exclusive

SUBMITTER: Notini L 

PROVIDER: S-EPMC10339716 | biostudies-literature | 2023 Jul

REPOSITORIES: biostudies-literature