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Electron microprobe analysis of Ca in olivines close to grain boundaries: The problem of secondary X-ray fluorescence
Electron microprobe analysis of Ca olivines grain boundaries secondary X-ray fluorescence
2012/4/5
AnalysisofCain olivine grainscloseto boundaries withCa-richphases is inherently problematic becauseofthe effectsofsecondary X-rayfluorescenceofCafrom the adjoining Ca-richphase. Commercial fluorescenc...
The Problem of Expressing the Specific Surface Areas of Clay Fractions
Density Fe and Ti oxides Magnetic and non-magnetic fractions Specific surface area
2011/12/28
Estimations of the external specific surface areas (S.S.A.) by the N2-BET method of clay separates that were further fractionated by the high gradient magnetic separation technique revealed that the m...
Analytical Electron Microscopy and the Problem of Potassium Diffusion
Adularia Analytical electron microscopy Diffusion Muscovite Potassium Transmission electron microscopy
2012/1/10
Diffusion of K during analytical electron microscopy (AEM) results in anomalously low count rates for this element. As the analysis area and specimen thickness decrease, count rates become disproporti...
Reassessment of the Volkonskoite-Chromian Smectite Nomenclature Problem
Chlorite Chromium Nomenclature Octahedral cations Smectite Volkonskoite
2012/1/10
The name volkonskoite was first used in 1830 to describe a bright blue-green, chromium-bearing clay material from the Okhansk region, west of the Ural Mountains, U.S.S.R. Since that time, the name has...
New Approach to the Problem of the Interlayer Bonding in Kaolinite
Interlayer Kaolinite New Approach
2012/2/13
The possibility of recording the absorption band which is related to oscillations of free OH in a superficial plane of the octahedral sheet of kaolinite inspired the present authors to review the prob...