含U副矿物的原位微区U-Pb定年方法

Translated title of the contribution: A review of in-situ U-Pb dating methods for the accessory U-bearing minerals

Jin Feng Sun, Jin Hui Yang*

*Corresponding author for this work

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Geochronology is the key to study the temporal-spacial evolution of geological bodies and continental geodynamics, and the U-Pb method of accessory minerals is one of the generally-used dating methods. The U-bearing accessory minerals commonly occur in all kinds of rocks, and their U-Pb ages provide an indication of the timing of geological events which took place during the evolution of their host geological bodies. However, the result of TIMS U-Pb dating is bulk analysis and gives an average age of the sample. With the development of the instrument sciences and analysis technique, the in-situ U-Pb dating has been a dominant trend of the U-Pb chronology development. Comparing with zircon, the other accessory minerals have a more complicated U-Pb isotopic system often with high content of common lead. Based on the reading of updated references and our relative studies, the authors review the advance of the in-situ U-Pb dating methods of accessory minerals and the correction of common lead, in order to accelerate the studies of the in-situ U-Pb dating of accessory minerals and its application to the geological research in China.

Original languageChinese
Pages (from-to)630-641+649
Number of pages13
JournalJilin Daxue Xuebao (Diqiu Kexue Ban)/Journal of Jilin University (Earth Science Edition)
Volume39
Issue number4
Publication statusPublished - Jul 2009
Externally publishedYes

Keywords

  • Accessory mineral
  • Correction of common lead
  • Dating methods
  • In-situ analysis
  • U-Pb age

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