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RECONSTRUCTING PAST ANTARCTIC ICE FLOW PATHS IN THE ROSS EMBAYMENT, ANTARCTICA USING SAND PETROGRAPHY, PARTICLE SIZE AND DETRITAL ZIRCON PROVENANCE
Provenance Antarctica zircons Till
2015/1/16
Tills for this study were analyzed from sites in East Antarctica (EA), West Antarctica (WA) and along a transect in the Ross Sea. Particle size, sand petrography, and detrital zircons were used to pro...
Individual particle characteristics of North African dust under different long-range transport scenarios
African dust Particle morphology CCSEM/EDX Dust origin
2011/11/14
After urban sources, mineral dust in Madrid is the second biggest contributor to PM10, making up 40% on average, of total emissions. Approximately, 50% of the days on which the daily limit of 50 mgm3...
Use of X-Ray Transmission Diffractometry for the Study of Clay-Particle Orientation at Different Water Contents
Clay Hydration Illite Microstructure Particle Orientation Smectite Transmission X-ray Diffraction
2011/12/6
Abstract: Homoionic Ca-saturated clay pastes were prepared and drying curves were obtained by applying suction pressures from 1 kPa to 100 MPa. A transmission device was used to study particle orienta...
Evolution of Fundamental-Particle Size during Illitization of Smectite and Implications for Reaction Mechanism
Crystal Growth Fundamental Particle Illite-Smectite Illitization Mechanism Lognormal Distribution Ostwald Ripening
2011/12/6
Abstract: Area-weighted thickness distributions of fundamental illite particles for samples of illite and illite-smectite from seven locations (including bentonites and hydrothermally altered pyroclas...
Effect of Illite Particle Shape on Cesium Sorption
Cesium Sorption Distribution Coefficient Illite Particle Shape
2011/12/8
Abstract: Samples containing illite and illite-smectite, having different crystal shapes (plates, “barrels”, and filaments), were selected for sorption experiments with cesium. There is a positive cor...
Mineral-Content and Particle-Size Effects on the Colloidal Properties of Concentrated Lateritic Suspensions
Concentrated Suspensions Heterocoagulation Interfacial Mobility Lateritic Suspensions Mineral Content of Suspensions Rheology Yield Stress
2011/12/7
Abstract: The rheological behavior of concentrated lateritic suspensions from Cuba is affected by mineral composition and particle size. Electrophoretic mobility and yield stress were considered. The ...
Measurement of Fundamental Illite Particle Thicknesses by X-ray Diffraction Using PVP-10 Intercalation
Bertaut Fundamental Illite Particles Illite Illite-Smectite Mixed-Layering Peak Broadening Polyvinylpyrrolidone Warren-Averbach X-ray Diffraction
2011/12/2
Abstract: The thicknesses of fundamental illite particles that compose mixed-layer illite-smectite (I-S) crystals can be measured by X-ray diffraction (XRD) peak broadening techniques (Bertaut-Warren-...
Particle size effects on transformation kinetics and phase stability in nanocrystalline TiO2
Particle size effects transformation kinetics phase stability nanocrystalline TiO2
2012/4/5
Kineticstudiesconductedprimarilybetween465and525Cdemonstratethattherate
ofthepolymorphicanatasetorutiletransformationincreasesdramaticallywhenthereact-
inganataseisvery?nelycrystalline.Coarseningoft...
Radiogenic Argon Released by Stepwise Heating of Glauconite and Illite: The Influence of Composition and Particle Size
Argon Dehydroxylation Glauconite Illite
2011/12/27
Various size fractions of several samples of glauconitic clay and illite were heated stepwise under vacuum for extended periods to: 1) evaluate radiogenic-argon (Ar) yields in relation to composition ...
Particle Shape versus Coherent Scattering Domain of Illite/Smectite: Evidence from HRTEM of Dolna Ves Clays
Coherent scattering domain Fundamental particle HRTEM Illite/Smectite Mixed-layer crystal
2011/12/27
Fundamental particle thickness measurements of Dolná Ves hydrothermal illite/smectite (I/S) samples confirmed earlier findings regarding the content of fixed cations in illite interlayers (ca. 0.9/O10...
Particle Morphological Evolution During the Conversion of I/S to Illite in Lower Cretaceous Shales from Sergipe-Alagoas Basin, Brazil
Illite Illite/smectite Morphology Shale TEM XRD
2011/12/1
Abstract: The illitic end of mixed-layer illite-smectite series (I/S) in shales from Lower Cretaceous Barra de Itiúba Formation, Sergipe-Alagoas basin, was examined with X-ray powder diffraction (XRD)...
Mechanism of Illitization of Bentonites in the Geothermal Field of Milos Island Greece: Evidence Based on Mineralogy, Chemistry, Particle Thickness and Morphology
Bentonite Hydrothermal alteration Illitization Illite/smectite Kaolinite Neoformation Ostwald ripening Solid state transformation
2011/12/28
Hydrothermal alteration has caused illitization along a 40m vertical profile in the Tsantilis bentonite deposit, Eastern Milos, Greece which consists principally of a Wyoming-type montmorillonite and ...
The Microstructure of Three NA+ Smectites: The Importance of Particle Geometry on Dehydration and Rehydration
Beidellite Layer charge Microstructure Montmorillonite Particle Smectite TEM
2011/12/28
Recent pedological evidence of the widespread distribution of beidellites in soils indicates the need for a greater knowledge of the effect of charge location on the microstructural organization of Na...
Kaolinite Particle Sizes in the <2 µM Range Using Laser Scattering
Kaolinite Laser scattering Particle size
2011/12/30
The Clay Minerals Society Source Clay kaolinites, Georgia KGa-1 and KGa-2, have been subjected to particle size determinations by 1) conventional sedimentation methods, 2) electron microscopy and imag...
Changes in Particle Morphology During Illitization: An Experimental Study
Illitization Morphology Particle TEM
2011/12/29
Smectite was reacted at several temperatures between 200°C and 500°C to produce interstratified illite/smectite (I/S) with different proportions of expandable layers. Dispersed and sedimented products...