搜索结果: 1-4 共查到“矿床学与矿相学 Diffuse”相关记录4条 . 查询时间(0.075 秒)
Diffuse Reflectance Spectra of Al Substituted Goethite: A Ligand Field Approach
Band Decomposition Bond Distances Diffuse Reflectance Spectroscopy Goethite Ligand Field Splitting Racah-Parameters
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2011/12/6
Abstract: Previous investigations of goethite revealed a substantial variation of color and diffuse reflectance spectra (DRS) in the extended visible range (350–2200 nm). To better understand the caus...
Use and Limitations of Second-Derivative Diffuse Reflectance Spectroscopy in the Visible to Near-Infrared Range to Identify and Quantify Fe Oxide Minerals in Soils
Crystal Field Bands Diffuse Reflectance Spectroscopy Goethite Hematite Intervalence Charge Transfer Iron Oxides Magnetite
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2011/12/8
Abstract: We measured the visible to near-infrared (IR) spectra of 176 synthetic and natural samples of Fe oxides, oxyhydroxides and an oxyhydroxysulfate (here collectively called “Fe oxides”), and of...
A Critique of Diffuse Double Layer Models Applied to Colloid and Surface Chemistry
Clay Dispersion Clay Swelling Diffuse Double Layer DLVO Electrostatic Attraction Theory Interparticle Forces Ockham's Razor Schiller Layers Smectites
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2011/12/22
Abstract: The use of Derjaguin-Landau-Verwey-Overbeek (DLVO) theory in colloid science has continued to the present day in spite of the inability of this theory to explain, even qualitatively, numerou...
Fe-Speciation in Kaolins: A Diffuse Reflectance Study
Diffuse reflectance spectroscopy Fe-speciation Kaolin Second derivative spectra
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2011/12/28
Diffuse reflectance spectra of kaolins have been recorded in samples from different environments. They show the systematic presence of Fe-oxides, even in bleached kaolins, with no contribution from th...