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为了使用透射电子显微镜研究锰微结核,采用了一科嵌入技术来制作超薄片(厚度约500埃)。锰微结核所具有的同心环状构造由两个互生相组成,一个是疏松多孔相,另一个相呈致密块状,所含晶体较大,由20—30个单位层组成。在两种情况中,电子衍射图象是10埃锰酸盐或钡镁锰矿的。微探针分析表明,Mn、Ni、Cu、Mg、Ca的含量以致密相的为高;而Al和Si的含量在两种相中相似。笔者从水-粘土系统的属性类推,认为这两个相是在不同的环境条件下形成的。尽管成岩作用可能也很重要。尤其是在微粒排列次序很差的情况下,为压力所控制的水的含量和可交换阳离子的含量也都影响着微粒的排列次序。
In order to study manganese microtuberculosis using a transmission electron microscope, a one-section embedding technique was used to make a super-thin sheet (about 500 angstroms thick). Manganese micro-nodules with the concentric ring structure consists of two alternate phases, one is loose porous phase, the other phase was dense block, containing larger crystals, composed of 20-30 unit layers. In both cases, the electron diffraction pattern is 10 angstroms manganate or manganite. Microprobe analysis showed that the contents of Mn, Ni, Cu, Mg and Ca were high in the dense phase, while the contents of Al and Si were similar in both phases. The author from the water - clay system attributes analogy, that these two phases are formed under different environmental conditions. Although diagenesis may also be important. Especially in the case of poorly arranged microparticles, the amount of water under pressure and the amount of exchangeable cations also influence the order of the microparticles.