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Randomly Interstratified Kaolinite-Smectite from Galicia (NW Spain): A New Procedure for Determination
Acid Soil Gabbro Interstratified Kaolinite-Smectite Paleohorizons
2011/12/9
Abstract: A new protocol was developed to examine an assemblage of kaolinite-smectite in a buried horizon of a paleosol developed on gabbro parent material. The new extraction procedure appears suitab...
Interaction of Vermiculite with Aliphatic Amides (Formamide, Acetamide and Propionamide): Formation and Study of Interstratified Phases in the Transformation of Mg- to Nh4-Vermiculite
Aliphatic Amides Fourier Analysis Interaction Interstratification Ion Exchange Sorption Mechanism Vermiculite
2011/12/22
Abstract: The Mg-vermiculite from Santa Olalla has been treated with aliphatic amides—formamide (FM), acetamide (AM) and propionamide (PM)—in aqueous solution. These treatments produce the transformat...
The nature of diffraction effects from illite and illite-smectite consisting of interstratified trans-vacant and cis-vacant 2:1 layers: A semiquantitative technique for determination of layer-type content
illite illite-smectite interstratified trans-vacant cis-vacant 2:1 layers semiquantitative technique layer-type content
2012/4/6
Previous workhas described the structural and diffraction criteria for distinguishing between tv-1M, cv-lM, and m-lM illite varieties, wheretv-1M illite corresponds to a structure withtrans vacant(tv)...
Structural Transformations of Interstratified Illite-Smectites from Dolná Ves Hydrothermal Deposits: Dynamics and Mechanisms
Cis-octahedron Illite-smectite Illitization Phase Transformations Trans-octahedron
2011/12/23
Abstract: Structural transformations of illite-smectite samples of hydrothermal genesis with increasing contents of illite layers were studied by X-ray powder diffraction. The samples were K-saturated...
Formation of regularly interstratified serpentine-chlorite minerals by tetrahedral inversion in long-period serpentine polytypes
Formation of regularly serpentine-chlorite minerals tetrahedral inversion long-period serpentine polytypes
2012/4/5
Serpentinite from Lancaster County, Pennsylvania, consists ofa variety offme-grained serpentine minerals, chlorite, randomly interstratified serpentine-chlorite, and a series of phases based on regula...
A Simple Technique for Identification of One-Dimensional Powder X-Ray Diffraction Patterns for Mixed-Layer Illite-Smectites and Other Interstratified Minerals
Identification Illite-smectite Interstratification X-ray diffraction
2011/12/29
A very simple technique is proposed for a quantitative or semiquantitative interpretation of X-ray diffraction (XRD) patterns for two-component mixed-layer structures. It is suitable for a determinati...
Infrared Spectroscopy Study of Tetrahedral and Octahedral Substitutions in an Interstratified Illite-Smectite Clay
Chourabi-Fripiat test Hofmann-Klemen effect Illite Infrared spectroscopy Interstratified Smectite Tetrahedral substitution
2011/12/28
Infrared spectroscopy is used to distinguish between octahedral and tetrahedral substitutions in an interstratified illite-smectite clay. The Hofmann-Klemen (Li) test suggests that the AlMg□ and FeMg□...
Isothermal Treatments of Regularly Interstratified Montmorillonite-Beidellite at Hydrothermal Conditions
Hydrothermal condition Isothermal treatments Regularly stratified montmorillonite-beidellite
2011/12/30
A glass in the intermediate composition of montmorillonite and beidellite, 50/50 in mole ratio, was treated under a hydrothermal pressure of 100 MPa, in the temperature range from 250 to 500°C and dur...
Stacking Order in a K/Mg Interstratified Vermiculite from Malawi
Crystal structure Interstratification Ion exchange Ordering Stacking Vermiculite
2011/12/30
The stacking order of a bi-ionic K/Mg vermiculite from Malawi (Nyasaland), has been determined from Weissenberg data. The sample corresponds to a K/Mg interstratified vermiculite containing 50% K laye...
Characterization of Hydroxy-Interlayered Vermiculite and Illite/Smectite Interstratified Minerals from the Weathering of Chlorite in a Cryorthod
Chlorite Hydroxy-interlayered intergrades Illite/smectite mixed-layers Soil clays Spodosol
2011/12/30
X-ray diffraction, FTIR, and chemical analyses were performed on clay fractions (1? 祄, <0.1 祄), separated by means of size fractionations and high-gradient magnetic separation techniques, from a Cryor...
Nature of the Illitic Phase Associated with Randomly Interstratified Smectite/Illite in Soils
Chemical analysis Elementary particle High-resolution transmission electron microscopy Illite Interstratified Smectite Smectite/illite
2011/12/29
A dispersion-centrifugation-decantation procedure was used to isolate various particle size fractions from a sample of clay (<2 祄 fraction) separated by sedimentation from the Ap horizon of a Webster ...
Microtopography of Regularly-Interstratified Mica and Smectite
Au-decoration Electron microscopy Fundamental particles Interstratified mica/smectite Surface microtopography
2011/12/1
Abstract: The gold decoration technique of electron microscopy was used to observe the microtopography of natural (001) surfaces of 1:1 regularly-interstratified mica/smectite minerals (expandable lay...
Randomly Interstratified Serpentine/Chlorite: Its Detection and Quantification by Powder X-ray Diffraction Methods
Interstratification Mixed-layered Serpentine/chlorite Tuscaloosa X-ray diffraction line broadening
2011/12/30
X-ray diffraction studies of the pore-lining chloritic mineral from the Tuscaloosa Formation disclose a marked pattern of odd-order line broadening for the 001 to the 00,16 reflections. The odd-order ...
Preparation and Properties of Pillared Interstratified Illite/Smectite
Cross-linking Illite/smectite Pillaring Smectite Thermal stability X-ray powder diffraction
2012/1/5
Pillared, regularly and randomly interstratified illite/smectite (I/S) was prepared by interacting aluminum chlorohydrate with I/S in aqueous dispersion. I/S samples from Kinnekulle, Sweden, ranging i...
Convenient Technique for Estimating Smectite Layer Percentage in Randomly Interstratified Illite/Smectite Minerals
Crystallite size Illite Illite/smectite Orientation Smectite layer percentage X-ray powder diffraction
2012/1/5
The validity of the saddle/001 method for estimating the percentage of smectite layers in randomly interstratified illite/smectite (US) minerals as a routine laboratory technique has been examined wit...