Zircon U-Pb Ages of the Magmatic Rocks Occurring in and around the Dajing Cu-Ag-Sn Polymetallic Deposit of oft-com:office:smarttags" />Inner Mongolia and Constrains to the Ore-Forming Age
详细信息
- 责任者：Jiang Sihong (MLR Key Laboratory of Metallogeney and Mineral Assessment ; Institute of Mineral Resources ; CAGS ; Beijing 100037 ; China) ; Liang Qingling
- 刊名：Acta Petrologica Sinica
- 出版年：2012
- 卷期：28(2)
- 关键词：多金属矿 ; polymetallic ores ; 侵入体 ; intrusions ; 火成岩 ; igneous rocks ; 内蒙古 ; Inner Mongolia
- 页码：p.495-513
- 图表：6 illus., 2 tables, 55 refs.
- 分类号：1001
- issnNo：ISSN1000-0569
- isbnNo：CN11-1922/P
摘要
Located in eastern Inner Mongolia, the Dajing Cu-Ag-Sn polymetallic deposit is a large-scale deposit. The studies on geochronology and geochemistry of the main intrusive and volcanic rocks occurring in and around the Dajing Cu-Ag-Sn polymetallic ore district were conducted in this paper. Based on the studies on the intrusive and eruptive rocks occurring in or around the Dajing ore district, combined with ore deposit geology and the results of former studies, it is suggested that the ore-forming of the Dajing Cu-Ag-Sn polymetallic deposit was related to the Late Jurassic-Early Cretaceous (146～133 Ma) magmatic activity, and was the product of the magmatism under the regional extension setting.oft-com:office:office" />