中国地质2024，Vol.51Issue(3)：833-864,32.DOI:10.12029/gc20230522001
镉锌稳定同位素地球化学及其在土壤等地质体中的危害与治理研究进展
Research progress of stable isotopic geochemistry of cadmium and zinc and its harm and control in soil and other geological bodies
摘要
Abstract
[Objective]Cadmium(Cd)and zinc(Zn)are both important mineral resources and harmful heavy metal elements.The recent development of multi-collector inductively coupled plasma mass spectrometry(MC-ICP-MS)has improved the precision of Zn isotope composition analysis in different environments.The establishment and application of non-traditional stable isotope systems such as cadmium and zinc have raised the geochemical research of cadmium and zinc to a new level,which also have become hot topics in isotope geochemistry.[Methods]This paper reviews recent research progress on the analytical methods,fractionation mechanisms,isotopic compositions in different reservoirs,and application fields of Zn and Cd isotopes investigated in many studies.[Results](1)The improvement of Zn and Cd isotope analysis technology has promoted the establishment of their isotope systems.(2)The compositions of Zn isotopes in various reservoirs have been basically identified.The data for Cd isotope compositions in reservoirs and anthropogenic sources is in the period of accumulation.(3)The isotopic fractionation mechanisms of Cd and Zn mainly include mineral adsorption,biological processes,and chemical reactions,which have been applied in the indication of planetary evolution,the exploration of metallogenic mechanisms,paleoenvironmental reconstruction,and pollution source tracer.(4)The combination of multiple isotopes helps to reduce uncertainty in the analysis of heavy metal pollution sources.[Conclusions]The development of new isotope analysis instruments and technologies has made the research of Zn and Cd isotopes more promising.It is expected that more work should be carried out in the near future to improve the fractionation mechanisms,compositions in partial reservoirs,and application fields.关键词
土壤/镉同位素/锌同位素/分析方法/分馏机制/同位素组成/古环境重建/同位素示踪/修复技术/环境地质调查工程Key words
soil/cadmium isotopes/zinc isotopes/analytical methods/fractionation mechanisms/isotope composition/paleoenvironmental reconstruction/source tracer/remediation technology/environmental geological survey engineering分类
天文与地球科学引用本文复制引用
曹瑞芹,杨忠芳,余涛..镉锌稳定同位素地球化学及其在土壤等地质体中的危害与治理研究进展[J].中国地质,2024,51(3):833-864,32.基金项目
广东省地质勘查与城市地质调查项目(2023-25)、中国地质调查局项目(DD20211414)及陕西省公益性地质调查项目(202201)联合资助. Supported by the projects of Guangdong Geological Exploration and Urban Geology(No.2023-25),China Geological Survey(No.DD20211414)and Shaanxi Public Welfare Geological Survey(No.202201). （2023-25）
