Zircon U-Pb Dating of Ore-Bearing Rocks and Molybdenite Re-Os Age in Shapinggou Porphyry Molybdenum deposit, Anhui Province
详细信息
- 责任者：Meng Xiangjin (Key Laboratory of Metallogeny and Mineral Assessment ; Institute of Mineral Resources ; Chinese Academy of Geological Science ; MLR ; Beijing 100037 ; China) ; Xu Wenyi
- 刊名：Acta Geologica Sinica
- 出版年：2012
- 卷期：86(3)
- 关键词：斑岩钼矿床 ; porphyry molybdenum deposit ; 铀—铅计时 ; U-Pb dating ; 铼—锇计时 ; Re-Os dating ; 安徽 ; Anhui Province
- 页码：p.486-494
- 图表：5 illus., 2 tables, 31 refs.
- 分类号：1001
- issnNo：ISSN0001-5717
- isbnNo：CN11-1951/P
摘要
Based on the analysis for the mineralization feature of the deposit, zircon LA-ICP-MS U-Pb ages were determined for the ore-bearing rocks in Shapingguo deposit. Zircon U-Pb dating yields ages of (122.51±0.81)Ma, (121.5±1.3) Ma and (120.7±1.1) Ma for fine-grained quartz syenite, medium-grained quartz syenite and syenite porphyry, respectively. The ore-forming age of the Shapingguo deposit is identical to the age of porphyry molybdenum mineralization in the Dabie metallogenic belt, which in the later molybdenum mineralization period in the east