XRD is a key characterization tool in mineral crystal form analysis, which can be used to identify and describe the crystal structure, crystal form characteristics, unit cell parameters and other information of minerals. It plays an important role in fields such as geology, materials science, mineral exploration and processing, and contributes to a deeper understanding of the properties and behavior of minerals.
Due to the different crystal structures of soil clay minerals, their properties such as expansion and contraction, cation exchange capacity, and adsorption are also different. Therefore, using XRD to study the types and content distribution of soil clay minerals can provide strong data support for the development of green agriculture, soil pollution prevention and other fields. At the same time, studying the evolution rules of soil clay minerals will help reveal the soil formation trajectory, genetic characteristics and soil-forming environment, reflect the weathering degree of the soil, and serve as an indicator of paleoenvironment, geological structure, and hydrological structure tracer. In oil and gas exploration and production, studying clay minerals in soil, such as the interlayer ratio of illite/mongolian interlayer minerals and the crystallinity of illite, can provide strong data support for oil layer protection, wellbore stabilization and other projects.
Soil weathering is the process of decomposition and transformation of crustal materials under the action of climate, water flow, temperature and other factors. XRD technology can analyze the mineral composition and crystal structure of the soil, thereby revealing the weathering degree and evolution process of the soil. This helps geologists and environmental scientists gain an in-depth understanding of soil formation and evolution, and provides important information for soil management and environmental protection.