Analysis of lattice fringe images appeared on ultrathin sections of intergradient clay minerals in soils

An intergradient clay mineral，“chloritized”vermiculite， present in a Korean Ultisol was studed by ultrathin sectioning and by examining 001 lattice fringe images using high-resolution electron microscopy： 1。典型矿物颗粒（直径， 0.3-0.5 <micrn>m;厚度， 0.07-0.14 m）呈螺旋形<micrn>。14-、11- 12-、10-和7- 8-的晶格手指<ang>出现在K^+饱和并在25-60 ° C时干燥的样本。在这些格子中，你和14岁和11- 12岁-<Ang>空间是预先确定的。小蝴蝶结并不总是笔直的，但往往是弯曲的、波浪的和不连续的。2.一个粒子包含堆叠的多个“crystals”。These“crystals”are packets of silicate layers in which their stacking is more uniform。“crystals”consist of a kind of silicate layer of more than two kinds of interstratifying silicate layers。有一个趋势是7- 8层<Ang>，可以将部分与颗粒表面分开。3. The lattice fringe images do not appear in some portions between the crystals" and near to the ends of the spindle-shaped particles。使用hydroxy-Al polymer进行partially filled up。“从矿物层、However、kaolin矿物的组成和每个垂直层向kaolin层的部分转变的中间层都提出了建议。”电子显微镜支持这个建议是没有收到的，但是那些建议是材料的分解，其中没有显示出晶格边缘图像和在“晶体”之间呈现的，并且接近于旋转粒子的结束，已经收到。

An intergradient clay mineral, "chloritized" vermiculite, present in a Korean Ultisol was studied by ultrathin sectioning and by examining 001 lattice fringe images using high-resolution electron microscopy: 1. Typical mineral particles (diameter, 0.3-0.5<micrn>m; thikness, 0.07-0.14 <micrn>m) are spindle-shaped. Lattice fringes with 14-, 11-12-, 10- and 7-8-<ang> spacinges appear in the samples saturated with K^+ and dried at 25-60゜C. Among these lattice fringes, those with 14-and 11-12-<Ang> spacings are predominant. The lattice fringes are not always straight but are often curved, waved and discontinuous. 2. One particle consists of stacked several "crystals". These "crystals" are packets of silicate layers in which their stacking is more uniform. The "crystals" consist of a kind of silicate layer of more than two kinds of interstratifying silicate layers. There is a tendency for the 7-8-<Ang> layers to be segregated in the portion near to the particle surface. 3. The lattice fringe images do not appear in some portions between the "crystals" and near to the ends of the spindle-shaped particles."Chloritized" vermiculite has been considered vermiculite whose interlayer is partially filled up with hydroxy-Al polymer. The interlayer material dissolved from the mineral had, however, a composition of kaolin mineral, and a partial transformation of each vermiculite layer into kaolin layers was suggested. The electron micrographs which support this suggestion were not obtained, but those suggesting the dissolution of material, which did not show the lattice fringe images and was present between the "crystals" and near to the ends of the spindleshaped particles, were obtained.