地质学报2017，Vol.91Issue(6)：1386-1399,14.
LA-(MC)-ICP-MS锡石U-Pb定年研究进展
The Reseach Advances in LA-(MC)-ICP-MS U-Pb Dating of Cassiterite
摘要
Abstract
With the increasing improvement of cassiterite U-Pb dating method,using cassiterite in-site U-Pb dating for tin polymetallic deposits has been of relatively mature technical conditions and will be one of the most direct and effective approach in study of the metallogenic time of tin deposits.Based on our lab research in the past several years,this study summarized the progress of LA-(MC)-ICP-MS cassiterite U-Pb dating method and the advantages and disadvantages of LA-MC-ICP-MS and LA-ICP-MS.In addition,the application results of this method in super-large tin deposits in Furong,Gejiu and Dachang are described.This study also presents the existing problems and technical difficulties of the method,which are common lead correction and ideal sample production,only through which can the precision and accuracy of dating results be improved.Meanwhile we further optimized in-situ cassiterite U-Pb dating technique,which can not only obtain accurate metallogenic chronology information but also provide technical support for understanding the formation and evolution of relevant deposits.关键词
锡石/U-Pb定年/LA-(MC)-ICP-MS/普通铅校正/实验外标Key words
cassiterite/U-Pb dating/LA-(MC)-ICP-MS/common Pb correction/the external standard引用本文复制引用
崔玉荣,涂家润,陈枫,郝爽,叶丽娟,周红英,李惠民..LA-(MC)-ICP-MS锡石U-Pb定年研究进展[J].地质学报,2017,91(6):1386-1399,14.基金项目
本文为国家自然科学基金项目(批准号:41503052、41373053)、北京离子探针中心开放课题基金项目(编号:DDK14-39)、东华理工大学核资源与环境重点实验室开放基金项目(编号:NRE1401)和国土资源部公益性行业科研专项项目(编号:201011027-4)联合资助的成果. （批准号:41503052、41373053）
