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Layer-Charge Heterogeneity in Smectites of I-S Phases in Pelitic Sediments from the Molasse Basin, Austria
Alkylammonium Method Austria Charge Heterogeneity Illite-Smectite K-Fixation Molasse Basin
2011/12/8
Abstract: The purpose of this study was to characterize more fully the surface charge characteristics of the end-member smectite in illite-smectite (I-S) mixed-layer phases found previously in pelitic...
Charge Heterogeneity and Nanostructure of 2:1 Layer Silicates by High-Resolution Transmission Electron Microscopy
Charge heterogeneity Clays High-resolution transmission electron microscopy Illite Montmorillonite Nanostructure Smectite Vermiculite
2011/12/30
Several soil and reference smectites and vermiculites and one reference illite were examined by high-resolution transmission electron microscopy (HRTEM) to decipher the nanostructure and layer charge ...
Charge Heterogeneity in Smectites
Cation exchange Enthalpy Smectite Surface charge Swelling
2011/11/25
Abstract: The heterogeneity of sites for Ca→K exchange was examined by microcalorimetry in the <0.2-µm fractions of some selected smectites. Six groups of sites, ranging in exothermic exchange e...
Apparent Charge Heterogeneity in Kaolins in Relation to Their 2:1 Phyllosilicate Content
Cation exchange Enthalpy Heat Kaolin Smectite Surface charge
2012/2/6
Measurements of the differential heats of K-Ca exchange are used to show that 6 groups of sites (ranging from −13.8 to −5.1 kJ/eq and with as many as 4 in any one sample) exist in kaolins ...
Layer Charge Heterogeneity in Vermiculites
Alkylammonium Layer charge Vermiculite Weathering
2012/2/7
The broad charge heterogeneity typical of nearly all smectites is not necessarily characteristic of vermiculites. In addition to vermiculites with pronounced heterogeneity, minerals with no or only li...