In situ infiltration-precipitation processes in some rock systems

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dc.contributor.authorIbrahim, Zahraa
dc.contributor.authorSultan, Rabih F.
dc.contributor.departmentDepartment of Chemistry
dc.contributor.facultyFaculty of Arts and Sciences (FAS)
dc.contributor.institutionAmerican University of Beirut
dc.date.accessioned2025-01-24T11:22:32Z
dc.date.available2025-01-24T11:22:32Z
dc.date.issued2023
dc.description.abstractWe carry out a chemical treatment (acidization or basification) of typical rock specimens in-situ, and characterize the emerging pattern resulting from the infiltration-precipitation scenario. Galena and limestone samples were treated with sulfuric acid, while pyrite was reacted with sodium hydroxide. Various infiltration techniques were employed, after selection of the most feasible method for each rock separately. The patterns of anglesite (PbSO4), anhydrite (CaSO4) and goethite (FeOOH) deposition presented different alteration modes of the bare rock textures. Among the three deposited minerals, only the anhydrite (CaSO4) displayed a band stratification. The formation of a Liesegang pattern in the rock of highest porosity indicates a plausible correlation between the band formation and a minimum porosity requirement. A banded rock of compact texture could then be formed by a cementation mechanism, governing the long time evolution of the rock. © 2023, The Author(s), under exclusive licence to Science Press and Institute of Geochemistry, CAS and Springer-Verlag GmbH Germany, part of Springer Nature.
dc.identifier.doihttps://doi.org/10.1007/s11631-023-00629-3
dc.identifier.eid2-s2.0-85165707716
dc.identifier.urihttp://hdl.handle.net/10938/25528
dc.language.isoen
dc.publisherScience Press
dc.relation.ispartofActa Geochimica
dc.sourceScopus
dc.subjectAnglesite
dc.subjectGalena
dc.subjectGoethite
dc.subjectLiesegang
dc.subjectLimestone
dc.subjectPattern formation
dc.subjectPercolation
dc.subjectPorosity
dc.subjectPyrite
dc.subjectReaction–diffusion
dc.subjectLead compounds
dc.subjectLime
dc.subjectPrecipitation (chemical)
dc.subjectPyrites
dc.subjectSodium hydroxide
dc.subjectSolvents
dc.subjectSulfur compounds
dc.subjectTextures
dc.subjectBasification
dc.subjectChemical treatments
dc.subjectGalenum
dc.subjectPrecipitation process
dc.subjectReaction-diffusion
dc.subjectBanded iron formation
dc.subjectCementation
dc.subjectGeochemistry
dc.subjectInfiltration
dc.subjectPrecipitation (chemistry)
dc.subjectSodium
dc.subjectSulfuric acid
dc.titleIn situ infiltration-precipitation processes in some rock systems
dc.typeArticle

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