SHRIMP Zircon Dating of the Zijinshan Pluton in Southwestern Fujian Province and Its Implications

详细信息   

• 责任者：Zhao Xilin （Nanjing Institute of Geology and Mineral Resources ; Nanjing 210016 ; China） ; Mao Jianren
• 刊名：Geology in China
• 出版年：2008
• 卷期：35(4)
• 关键词：SHRIMP定年 ; SHRIMP dating ; 黑云母花岗岩 ; biotite granite ; 福建 ; Fujian
• 页码：p.590-597
• 图表：3 illus., 2 tables, 37 refs.
• 分类号：1300
• issnNo：ISSN1000-3657
• isbnNo：CN11-1167/P

摘要

The rock-and ore-forming ages of the Zijinshan pluton were precisely redefined based on SHRIMP zircon dating. CL images of zircons in the Zijinshan biotite granite show that there are three zircon morphologies. The results of dating indicate that the three types of zircon have different ages and different geological implications. The first type of zircon crystal is perfect and has core-rim structure. The second type of zircon has well-developed but incomplete crystal morphology. The third type of zircon is perfect and has clear growth zoning. It has undergone late-stage reworking.