Rutile U-Pb Isotopic Dating Methodology
详细信息
- 责任者：Zhou Hongying (Tianjin Institute of Geology and Mineral Resources ; CGS ; Tianjin 300170 ; China) ; Li Huaikun
- 刊名：Acta Geologica Sinica
- 出版年：2013
- 卷期：87(9)
- 关键词：铀—铅计时 ; U-Pb dating ; 金红石 ; rutile
- 页码：p.1439-1446
- 图表：8 illus., 3 tables, 37 refs.
- 分类号：1300
- issnNo：ISSN0001-5717
- isbnNo：CN11-1951/P
摘要
Rutile ID-TIMS and LA-MC-ICP-MS U-Pb isotopic dating methods are elaborated systematically in this paper.The advantage and the limitation of the two methods are discussed respectively.Rutile from Daixian,Shanxi Province were first analyzed using LA-MC-ICP-MS method to check the U-Pb age homogeneity,and then dated precisely by means of ID-TIMS method,yielding a weighted ~207Pb/~206 Pb average age of 1805±2 Ma(MSWD=2.3,n=6)and an upper interseption age of 1808±7Ma(MSWD= 0.20,n=6).The rutile U-Pb isotopic dating results by ID-TIMS and in situ methods are comparatively studied in this paper.It is demonstrated that precise and reliable rutile U-Pb ages can be obtained by means of both ID-TIMS and LA-MC-ICP-MS methods.
© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号 地址：北京市海淀区学院路29号 邮编：100083 电话：办公室：(+86 10)66554848；文献借阅、咨询服务、科技查新：66554700 |