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Mixtures of multiplicative cascade models in geochemistry
Mixtures multiplicative cascade models geochemistry
2009/11/3
Multifractal modeling of geochemical map data can help to explain the nature of frequency distributions of element concentration values for small rock samples and their spatial covariance structure. U...
Tensile strength of sand, palygorskite and calcium carbonate mixtures and interpretation with the effective stress theory
Indirect tensile strength Palygorskite Calcium carbonate Effective stress Compaction Central Iran
2011/11/4
Many soils in arid regions of the world including those of central Iran contain palygorskite and carbonates in their mineral fraction. There is, however, little information on the effects of these min...
Solid-liquid phase equilibria of binary salt hydrate mixtures involving ammonium alum
phase diagrams aluminum salts differential drop calorimetry salts hydrates
2011/11/10
Summary The solid-liquid phase diagrams of binary mixtures of ammonium alum with ammonium iron(III) alum, with aluminum nitrate nonahydrate and with ammonium nitrate and of aluminum sulfate hexadecahy...
Quantitative Analysis of Mixtures of 1M and 2M1 Dioctahedral Micas by X-Ray Diffraction
March function Peak-area ratio Preferred orientation Quantitative analysis X-ray diffraction 1M mica 2M1 mica
2011/12/1
Abstract: Investigation of a naturally occurring mixture of dioctahedral micas prompted an examination of X-ray diffraction (XRD) techniques for obtaining quantitative estimates of 1M and 2M1 mica pro...
Clay Dispersion and Hydraulic Conductivity of Clay-Sand Mixtures as Affected by the Addition of Various Anions
Illite Kaolinite Organic anions Smectite
2011/12/31
The effect of anions on clay dispersion and the hydraulic conductivity (HC) of clay-sand mixtures has received little attention. This study investigates the effect that adding small amounts of anions ...
Flocculation of Illite/Kaolinite and Illite/Montmorillonite Mixtures as Affected by Sodium Adsorption Ratio and pH
Flocculation value Critical coagulation concentration Dispersion Aggregation
2012/1/4
The effect of electrolyte concentration, exchangeable sodium percentage (ESP), sodium adsorption ratio (SAR), and pH on the flocculation-dispersion behavior of 50/50 mixtures of reference illite with ...
Effect of Na-Hexametaphosphate on the Hydraulic Conductivity of Kaolinite-Sand Mixtures
Dispersion Hexametaphosphate Hydraulic conductivity Kaolinite Sand Sodium adsorption ratio
2011/12/31
Mixtures of kaolinite clay and quartz sand were packed in columns and leached with NaCl-CaCl2 solutions of different concentrations (ranging from 0.5 M to distilled water) having sodium adsorption rat...
Effect of Magnesium on the Hydraulic Conductivity of Na-Smectite-Sand Mixtures
Charge density Dispersion Hydraulic conductivity Magnesium Salinity Smectite Swelling
2012/1/10
Changes in hydraulic conductivity (HC) and clay dispersion of smectite-sand mixtures as a function of exchangeable Na in Na-Ca and Na-Mg systems were measured. The charge density on the smectites had ...
Near-Infrared Reflectance Spectra of Mixtures of Kaolin-Group Minerals: Use in Clay Mineral Studies
Dickite Interstratification Kaolinite Near-infrared spectroscopy Order-disorder X-ray powder diffraction
2012/1/9
Near-infrared (NIR) reflectance spectra for mixtures of ordered kaolinite and ordered dickite have been found to simulate the spectral response of disordered kaolinite. The amount of octahedral vacanc...
Effect of Exchangeable Potassium on the Hydraulic Conductivity of Smectite-Sand Mixtures
Hydraulic conductivity Potassium Salinity Sand Smectite Swelling
2012/1/11
Changes in hydraulic conductivity of smectite-sand mixtures (using four reference smectites) as a function of the concentration (0.01, 0.003, 0.002, 0.001 M Cl- and distilled water) and potassium adso...
Apparent and Partial Specific Sorption of Oxine by Montmorillonite and Silica Gel in Binary Mixtures
Adsorption Mixtures Montmorillonite Oxine Silica gel Specific sorption
2012/1/12
Oxine sorption by binary mixtures of montmorillonite and silica gel was studied at pH 5 as a function of oxine concentration and mixture composition. The investigation was made to resolve the problem ...
Effect of Ambient Atmosphere on Solid State Reaction of Kaolin-salt Mixtures
Infrared spectroscopy Gaseous atmosphere Kaolin Metakaolin Salt Thermal analysis
2012/1/12
The reaction of kaolin with NaCl was followed by dynamic thermal analysis and mass spectrometry under N2, CO2, and air atmospheres and in a 10−5-torr vacuum. The weight loss was a function of th...
Quantitative Analysis of Mineral Mixtures Using Linear Programming
Chemical analyses Linear programming Mineral analyses Montmorillonite Opal C-T X-ray powder diffraction
2012/1/12
The approximate maximum and minimum amounts of any phase in a complex mineral mixture can be determined by solving a linear programming problem involving chemical mass balance and X-ray powder diffrac...
Effect of Clay Mineralogy and Aluminum and Iron Oxides on the Hydraulic Conductivity of Clay-Sand Mixtures
Aluminum oxide Exchangeable sodium percentage Hydraulic conductivity Illite Iron oxide Montmorillonite Salinity Sand
2012/2/2
Changes in hydraulic conductivity and clay dispersivity of clay-sand mixtures (four reference smectites and Fithian illite) as a function of concentration (0.01 M Cl− and distilled water) and so...
Estimation of Clay Proportions in Mixtures by X-Ray Diffraction and Computerized Chemical Mass Balance
Chemical mass balance Chlorite Kaolinite Quantitative mineralogy Smectite Vermiculite X-ray powder diffraction
2011/11/25
Abstract: As part of a laboratory study of the hydrothermal alteration of kimberlite, a mass balance procedure has been developed for estimating the relative proportions of synthetic phyllosilicate ph...