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A platform for research: civil engineering, architecture and urbanism
Long-term (bio)deterioration of Fe-containing and Fe-depleted sandstones: An experimental insight into biotic and abiotic interactions
https://orcid.org/0000-0002-7034-367X
https://orcid.org/0000-0002-7267-2776
Abstract Long-term experimental (bio)weathering revealed that Fe-rich sandstone was more susceptible to biodeterioration as compared to Fe-depleted sandstone. Leaching data combined with surface observations indicated higher susceptibility of goethite (FeOOH) than hematite (Fe2O3) to dissolution. Organic-rich weathering conditions were found to have a larger impact on sandstones as compared to inorganic weathering. Element release from the mineral lattice can be largely enhanced by organic conditions affecting dissolution of hematite cement and changing stoichiometric proportions of elements initially bound in matrix and cement minerals. This study highlights that long-term episodes of biotic and abiotic weathering constitute key factors affecting susceptibility of sandstones to degradation processes.
Graphical Abstract Display Omitted
Highlights Bacteria and siderophore enhance weathering of sandstones. Organic-rich conditions facilitate weathering of sandstones. Sandstone cement was the most susceptible component to dissolution. Goethite is more susceptible to dissolution than hematite.
Long-term (bio)deterioration of Fe-containing and Fe-depleted sandstones: An experimental insight into biotic and abiotic interactions
https://orcid.org/0000-0002-7034-367X
https://orcid.org/0000-0002-7267-2776
Abstract Long-term experimental (bio)weathering revealed that Fe-rich sandstone was more susceptible to biodeterioration as compared to Fe-depleted sandstone. Leaching data combined with surface observations indicated higher susceptibility of goethite (FeOOH) than hematite (Fe2O3) to dissolution. Organic-rich weathering conditions were found to have a larger impact on sandstones as compared to inorganic weathering. Element release from the mineral lattice can be largely enhanced by organic conditions affecting dissolution of hematite cement and changing stoichiometric proportions of elements initially bound in matrix and cement minerals. This study highlights that long-term episodes of biotic and abiotic weathering constitute key factors affecting susceptibility of sandstones to degradation processes.
Graphical Abstract Display Omitted
Highlights Bacteria and siderophore enhance weathering of sandstones. Organic-rich conditions facilitate weathering of sandstones. Sandstone cement was the most susceptible component to dissolution. Goethite is more susceptible to dissolution than hematite.
Long-term (bio)deterioration of Fe-containing and Fe-depleted sandstones: An experimental insight into biotic and abiotic interactions
https://orcid.org/0000-0002-7034-367X
https://orcid.org/0000-0002-7267-2776
Abstract Long-term experimental (bio)weathering revealed that Fe-rich sandstone was more susceptible to biodeterioration as compared to Fe-depleted sandstone. Leaching data combined with surface observations indicated higher susceptibility of goethite (FeOOH) than hematite (Fe2O3) to dissolution. Organic-rich weathering conditions were found to have a larger impact on sandstones as compared to inorganic weathering. Element release from the mineral lattice can be largely enhanced by organic conditions affecting dissolution of hematite cement and changing stoichiometric proportions of elements initially bound in matrix and cement minerals. This study highlights that long-term episodes of biotic and abiotic weathering constitute key factors affecting susceptibility of sandstones to degradation processes.
Graphical Abstract Display Omitted
Highlights Bacteria and siderophore enhance weathering of sandstones. Organic-rich conditions facilitate weathering of sandstones. Sandstone cement was the most susceptible component to dissolution. Goethite is more susceptible to dissolution than hematite.
Long-term (bio)deterioration of Fe-containing and Fe-depleted sandstones: An experimental insight into biotic and abiotic interactions
Potysz, Anna (author) / Bartz, Wojciech (author)
2024-03-02
Article (Journal)
Electronic Resource
English
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