多晶X光衍射法在工业和科研的许多领域已应用多年。近年来,由于粒子探测技术和测角方法的改进,仪器的稳定度、分辨率、重复性不断提高。六十年代以后,多晶衍射术在海洋地质领域也广泛采用。深海钻探船<格洛玛>号就以此法作为海洋海底岩心矿物分析的主要手段。此外,如海洋粘土的层错 Polycrystalline X-ray diffraction methods have been used for many years in many fields of industry and research. In recent years, the stability, resolution and repeatability of the instrument have been continuously improved due to the improvements in the particle detection technology and the angle measurement method. Since the 1960s, polycrystalline diffractometry has also been widely adopted in marine geology. The Deep Sea Drilling Ship uses this method as the primary means of analyzing core seabed minerals in the ocean. In addition, faults such as marine clay layers