Soil Clay Minerals

 Due to the different crystal structures of soil clay minerals, their properties such as expansion and shrinkage, cation exchange capacity, and adsorption also differ. 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, prevention of soil pollution, and other areas. At the same time, studying the evolutionary rules of soil clay minerals can help reveal the soil formation trajectory, genetic characteristics, and soil-forming environment, reflect the degree of soil weathering, and serve as an indicator for paleoenvironment, geological structure, and hydrological structure tracking. In petroleum and gas exploration and production, examining clay minerals in the soil, such as the interlayer ratio of illite/montmorillonite minerals and the crystallinity of illite, can provide strong data support for petroleum reservoir preservation, wellbore stabilization, and other projects.