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首页> 外文期刊>Moscow University Soil Science Bulletin >Clay—Salt Soil Formations In Situ and Ex Situ
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Clay—Salt Soil Formations In Situ and Ex Situ

机译：粘土-原位和异位盐土形成

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The methods of scanning and transmission electron microscopy, energy-dispersive analysis, and electron energy loss spectroscopy are used for the study of the interaction of soluble sodium and magnesium sulfates, as well as sodium chloride (in the presence of Na and Mg sulfates), with clay minerals: kaolinite and smectite. It is shown that the interaction of clay minerals with salt solutions initiates the reorganization of crystallites of the minerals and results in the formation of clay—salt microaggregates. The manifestation of the formation of clay—salt microaggregates and their composition, size, shape, and particle-packing state depend on the nature of the minerals and the properties of the salt participating in the interaction. In addition, the interaction of sodium chloride in the presence of sulfates results in the formation of peculiarly shaped pentagonal clay—salt ultramicroaggregates. Their microdiffraction patterns are characterized by the presence of reflections corresponding to fivefold rotational symmetry; this may be evidence of their quasicrystalline structure.
机译：扫描和透射电子显微镜，能量色散分析和电子能量损失谱的方法用于研究可溶性硫酸钠和硫酸镁以及氯化钠（在存在硫酸钠和硫酸镁的情况下）的相互作用，与粘土矿物：高岭石和蒙脱石。结果表明，粘土矿物与盐溶液的相互作用引发了矿物微晶的重组，并导致了粘土-盐微骨料的形成。粘土-盐微骨料的形成及其组成，大小，形状和颗粒堆积状态的表现取决于矿物的性质和参与相互作用的盐的性质。另外，氯化钠在硫酸盐存在下的相互作用导致形成形状奇特的五边形粘土盐超微骨料。它们的微衍射图样的特征是存在与五重旋转对称性相对应的反射。这可能是其准晶体结构的证据。

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