中国司法鉴定Issue(1)：48-54,7.DOI:10.3969/j.issn.1671-2072.2026.01.006
岩石的多技术联合分析在案件侦破中的应用
The Application of Multi-techniques for Joint Analysis of Rock in Case Investigation
摘要
Abstract
Objective The application of analysis of geological materials like rocks in forensic science is growing.It is of great significance to adopt multi-techniques for joint analysis.Methods This study employed X-ray diffraction(XRD)combined with Rietveld full spectrum fitting quantification,polarized light microscope(PLM),X-ray fluorescence spectrometry(XRF),and scanning electron microscope-energy dispersive spectrometry(SEM-EDS).These techniques were used to investigate the mineral and element composition of rock samples from crime scenes and suspects'residence.Results The study identified calcite altered by dolomitization,quartz,and illite in two samples.The main elements detected included magnesium,aluminum,silicon,phosphorus,sulfur,potassium,calcium,iron,and strontium.In the correlation calculation,the semi-quantitative data of minerals,oxides,and elements from two samples were set as index values,and the correlation coefficient between the samples was calculated.The coefficients were 0.999 by using the cosine of the angle and 0.965 by the Spearman's rank correlation coefficient method.Conclusion The results suggested a probable common origin for the two rock samples.This study provides valuable tools and technical support for identifying geological materials such as rock,ore and solid waste in criminal investigation.关键词
矿物组成/元素组成/X射线衍射仪/偏振光显微镜/X荧光光谱仪/扫描电子显微镜-X射线能谱仪Key words
mineral composition/elemental composition/X-ray diffraction(XRD)/polarized light microscope(PLM)/X-ray fluorescence spectrometry(XRF)/scanning electron microscope-energy dispersive spectrometry(SEM-EDS)分类
社会科学引用本文复制引用
王萍,罗善霞,梅宏成,郭洪玲,杨瑞琴,朱军,胡灿,邓显贺,权养科..岩石的多技术联合分析在案件侦破中的应用[J].中国司法鉴定,2026,(1):48-54,7.基金项目
公安理论及软科学研究计划(2024LL62) （2024LL62）
中央级公益性科研院所基本科研业务费项目(2022JB009,2019JB021) （2022JB009,2019JB021）
国家重点研发计划(2017YFC0803803). （2017YFC0803803）
