主管：中华人民共和国司法部
主办：司法鉴定科学研究院
ISSN 1671-2072  CN 31-1863/N
Chinese Journal of Forensic Sciences

Chinese Journal of Forensic Sciences ›› 2026 ›› Issue (1): 48-54.DOI: 10.3969/j.issn.1671-2072.2026.01.006

• Forensic Science • Previous Articles     Next Articles

The Application of Multi-techniques for Joint Analysis of Rock in Case Investigation

WANG Ping1,2, LUO Shanxia3, MEI Hongcheng2, GUO Hongling2, YANG Ruiqin1, ZHU Jun2, #br# HU Can2, DENG Xianhe2, QUAN Yangke2#br#   

  1. 1. School of Investigation, People’s Public Security University of China, Beijing 100038, China; 2. Institute of 
    Forensic Science, Ministry of Public Security, Beijing 100038, China; 3. Langfang Center for Integrated 
    Natural Resources Survey, China Geological Survey, Langfang 065000, China
  • Received:2024-10-31 Published:2026-01-15 Online:2026-01-22

岩石的多技术联合分析在案件侦破中的应用

王　萍1，2，罗善霞3，梅宏成2，郭洪玲2，杨瑞琴1，朱　军2，胡　灿2，邓显贺2，权养科2   

  1. 1.中国人民公安大学 侦查学院，北京 100038； 2.公安部鉴定中心，北京100038；
    3.中国地质调查局廊坊自然资源综合调查中心，河北 廊坊065000
  • 通讯作者: 杨瑞琴（1971—），女，教授，博士，主要从事法庭科学理化检验研究。E-mail：yangrui@ppsuc.edu.cn 朱军（1974—），男，研究员，博士，主要从事法庭科学理化检验研究。E-mail：zhujun001cn@126.com
  • 作者简介:王萍（1989—），女，副研究员，硕士，主要从事法庭科学理化检验研究。E-mail：wp1029@cifs.gov.cn
  • 基金资助:
    公安理论及软科学研究计划（2024LL62）；中央级公益性科研院所基本科研业务费项目（2022JB009，2019JB021）；国家重点研发计划（2017YFC0803803）。

PDF

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.

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)

摘要： 目的 岩石等地质样本在案件侦破中的应用逐年增加，多技术联合分析对确定样品关联性具有重要意义。方法 采用X射线衍射仪结合Rietveld全谱拟合定量、偏振光显微镜、X射线荧光光谱仪和扫描电子显微镜-X射线能谱仪等技术，对一起刑事案件中现场和涉案人员家中提取的岩石样品进行矿物组成与含量、元素组成与含量的分析。结果 两地样品中主要矿物组成均为方解石（多受白云石化作用）以及少量石英、伊利石；主要元素均检出Mg、Al、Si、P、S、K、Ca、Fe和Sr；以两份样品的矿物、氧化物和元素半定量数据作为指标数值，采用夹角余弦法和斯皮尔曼等级相关系数法计算样品间相关性系数分别为0.999和0.965。结论 综上，不排除现场样品与涉案人员家中样品属于相同来源的可能。该方法为岩石、矿石、固体废物等检验和鉴别以及公安侦查提供技术支持。

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

CLC Number: