• 责任者：Nie Fengjun (Key Laboratory of Metallogeny and Mineral Assessment ; MLR ; Institute of Mineral Resources ; Chiese Academy of Geological Sciences ; Beijing 100037 ; China) ; Wang Fengxiang
• 刊名：Mineral Deposits
• 出版年：2013
• 卷期：32(4)
• 关键词：铌矿 ; niobium ores ; 钽矿 ; tantalum ores ; 内蒙古 ; Inner Mongolia
• 页码：p.731-744
• 图表：5 illus., 2 tables, 20 refs.
• 分类号：1001
• issnNo：ISSN0258-7106
• isbnNo：CN11-1965/P

     Located in the centre-l eastern section of the Yinshan Precambrian uplift in the western segment of the Inner Mongolian Axis of the Northern China craton, the newly discovered Zhaojinggou deposit is one of the largest Nb-Ta deposits in northern China. The preliminary studies show that the Nb and Ta mineralization in the Zhaojinggou mineralized district and its adjacent area was apparently linked to a period of sustained granitoid magmatism within the craton, lasting from 276 to 135 Ma. This magmatism occurred in a transpressional to extensional setting and was produced from mantle-and crust-derived melts. Nb and Ta mineralized peraluminous AFG intrusive complex belongs to the low-phosphorous type of rare metal granites, indicating that they were generated from the granitoid magmas, most likely by extended fractionation of either crust derived or hybrid crust-mantle derived magmas.