Study on the Laser-Raman Spectroscopy Analysis and CL Images: Implications for Metamictized Zircons and U-Pb Ages

详细信息   

• 责任者：Zhang Yongqing (Institute of Geology and Mineral Resources ; Tianjin 300170 ; China)
• 刊名：Geological Survey and Research
• 出版年：2012
• 卷期：35(3)
• 关键词：拉曼光谱 ; Raman spectra ; 阴极射线发光 ; cathodoluminescence ; 铀—铅计时 ; U-Pb dating
• 页码：p.224-228, 235
• 图表：2 illus., 2 tables, 18 refs.
• 分类号：1300
• issnNo：ISSN1672-4135
• isbnNo：CN12-1353/P

摘要

Three Metamictized Zircons were investigated by Laser-Raman spectroscopy analysis, CL images, and U-Pb isotopic methods. It is proved that the Laser-Raman Spectroscopy analysis and the CL images can indicate metamict degrees of the zircons and provide significant constraints on U-Pb age interpretation. Particular attention should be attached to the internal texture study of zircons, especially using Laser-Raman Spectroscopy analysis and CL images, to get better interpretation of U-Pb ages.