主题词：Clay minerals and soil interactions; Iron oxide chemistry and applications; Soil and Unsaturated Flow; Geological and Geochemical Analysis; Geochemistry and Geologic Mapping; Zeolite Catalysis and Synthesis; Mesoporous Materials and Catalysis; Concrete and Cement Materials Research; Layered Double Hydroxides Synthesis and Applications; Chemical Synthesis and Characterization; Mineralogy and Gemology Studies; Radioactive element chemistry and processing; Adsorption and biosorption for pollutant removal; Geochemistry and Elemental Analysis; Hydrocarbon exploration and reservoir analysis; Therapeutic Uses of Natural Elements; Crystal Structures and Properties; Mine drainage and remediation techniques; Minerals Flotation and Separation Techniques; Groundwater and Isotope Geochemistry; Glass properties and applications; X-ray Diffraction in Crystallography; Geology and Paleoclimatology Research; Geophysical and Geoelectrical Methods; Groundwater flow and contamination studies