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Refined Relationships between Chemical Composition of Dioctahedral Fine-Grained Micaceous Minerals and Their Infrared Spectra within the OH Stretching Region. Part II: The Main Factors Affecting OH Vibrations and Quantitative Analysis
Cation Mass Cation Valency IR Spectra OH Stretching Frequencies Quantitative Analysis
2011/12/9
Abstract: A new model for the interpretation of dioctahedral mica infrared (IR) spectra in the OH stretching vibration region is proposed. It is based on the analysis of the main factors responsible f...
Surface Charge Density Determination of Micaceous Minerals by 235U Fission Particle Track Method
Micaceous Minerals 235U Fission surface charge density mica
2012/2/13
The surface charge density of mica (001) cleavages was determined by counting the number of fission particle tracks in a given area of a 6-mm muscovite disc replica with optical and scanning electron ...
Micaceous Occlusions in Kaolinite Observed by Ultramicrotomy and High Resolution Electron Microscopy
Micaceous Occlusions Kaolinite Ultramicrotomy Resolution Electron Microscopy
2012/2/13
The layer structure of kaolinite from Twiggs, Georgia and fire-clay type kaolinite (Frantex B, from France), particle size separates 2–0·2 µm was studied by high resolution electron microscopy a...
Iron Oxidation and Reduction Effects on Structural Hydroxyl and Layer Charge in Aqueous Suspensions of Micaceous Vermiculites
Iron Oxidation Structural Hydroxyl Layer Aqueous Suspensions Micaceous
2012/2/15
Four Na2S2O4-reduced Na-vermiculites, each with some trioctahedral mica interstratified, were oxidized with H2O2 at pH 6·5 and again reduced with Na2S2O4 in suspensions at pH 7·5–8·0. The layer charge...
Exchangeability of Potassium in Heated Fine-Grained Micaceous Minerals
Exchangeability Potassium Heated Fine-Grained Micaceous Minerals
2012/2/15
Samples of several naturally fine-grained micaceous minerals were heated at 450癈 for 24 hr (after the effects of other temperatures and heating periods were evaluated with the < 2 祄 fraction of Grundi...
Relation of Potassium Exchange and Fixation to Degree of Weathering and Organic Matter Content in Micaceous Clays of Podzol Soils
Potassium Exchange Degree Weathering Organic Matter Content Micaceous Clays
2012/2/20
The rates of K exchange of untreated and peroxide-treated micaceous clays from five Podzol soils of increasing degrees of weathering were determined using sodium tetraphenyl boron. In addition, the am...