Abstract

The development of fundamental and applied geology requires an ever-increasing amount of data on the structures and properties of rocks at different scales. Of particular interest are investigations of properties of rocks and minerals in relation to micron- and submicron-sized inclusions. These issues are in high demand for studies of different forms of natural silicas and micro- and nanocracks in superhard and high-density rocks. Different microstructural analysis methods were used to perform 3D studies of natural nanostructured silicas (siliceous clays). These results can serve as the basis for the solution of both fundamental problems, such as geochronology, genesis, and catagenetic transformations of mineral forms, and a wide range of applied issues, for example, for the description of unconventional oil and gas reservoir rocks.

中文翻译：

---

天然二氧化硅形貌和晶体结构的电子显微镜和电子衍射研究

摘要

基础地质学和应用地质学的发展需要越来越多的不同尺度岩石结构和性质的数据。特别感兴趣的是研究与微米和亚微米大小的包裹体相关的岩石和矿物的特性。这些问题迫切需要研究不同形式的天然二氧化硅以及超硬和高密度岩石中的微裂纹和纳米裂纹。使用不同的微观结构分析方法对天然纳米结构二氧化硅（硅质粘土）进行 3D 研究。这些结果可以作为解决矿物形态的年代学、成因和后生转化等基本问题和非常规油气储层描述等广泛应用问题的基础。