• 责任者：Duan Ruichun (Isotopic Geochemistry Laboratory ; Wuhan Center of Geological Survey ; China Geological Survey ; Wuhan 430205 ; China) ; Yang Hongmei
• 刊名：Geotectonica et Metallogenia
• 出版年：2013
• 卷期：37(4)
• 关键词：铜矿 ; copper ores ; 铀—铅计时 ; U-Pb dating ; 广东 ; Guangdong
• 页码：p.754-764
• 图表：5 illus., 2 tables, 29 refs.
• 分类号：1001
• issnNo：ISSN1001-1552
• isbnNo：CN44-1595/P

     The Shilu copper deposit in Yangchun city, Guangdong province is located at southwest of the NNE-strike Wuchuan-Sihui fault. LA-ICP-MS U-Pb dating of zircons from a pyrite （-chalcopyrite）-mincralizcd granodiorite sample from the Shilu Copper deposit yielded a weighted mean 206pb/E38u age of 107.2±2.0 Ma, consistent with the results obtained from two non-mineralized granodiorite samples of the Shilu pluton （106.7±1.4 Ma and 104.1±2.0 Ma, respectively） within analytical errors. This indicates that the mineralization was closely related to the emplacement of the granodiorite pluton. Early to Late Yanshanian shoshonitic to calc-alkaline intrusive rocks are widespread in the Shilu area, suggestive of a lithospheric extension tectonic setting. Accordingly, the formation of the Shilu copper deposit might have resulted from the ma~matic activity induced by this lithosnheric extension.