• 责任者：Du Guomin (Wuhan Center ; China Geological Survey ; Wuhan 430205 ; China) ; Cai Hong
• 刊名：Geology and Mineral Resources of South China
• 出版年：2012
• 卷期：28(2)
• 关键词：铅锌矿床 ; lead-zinc deposit ; 铷—锶计时 ; Rb-Sr dating ; 湖南 ; Hunan Province
• 页码：p.175-180
• 图表：3 illus., 2 tables, 11 refs.
• 分类号：1001
• issnNo：ISSN1007-3701
• isbnNo：CN42-1417/P

This paper takes a systematic study on the experimental conditions using the grinding method and stepping dissolution technique to extract the fluid phase and sulfide phase from sphalerite for Rb-Sr isochrone dating, and the entire analysis process was established and improved. Through the demonstration of Rb-Sr dating method used in Dagoudong Pb-Zn deposits, western Hunan Province, the validity of the method was further verified and showed a good application prospects. The isochrone ages indicated that Dagoudong deposit was formed in Early Ordovician, and maybe related to later diagenesis or regional tectono-thermal events.