Objective The Nenjiang-Heihe structural belt is located in the eastern Xing'anling Mongolian Orogenic Belt between the Songnen block and Xiang'an block. This structural belt has long been the focus of geological sc...Objective The Nenjiang-Heihe structural belt is located in the eastern Xing'anling Mongolian Orogenic Belt between the Songnen block and Xiang'an block. This structural belt has long been the focus of geological scholars (Miao Laicheng et al., 2003; Liang Chenyue et al., 2011; Li Chao et al., 2017), which has complex geological condition, strong metamorphism and deformation and serious vegetation cover. There is a great dispute about the time limit of collage of the structural belt. In order to solve the problem, this paper reports a newly discovered Devonian orthoclase granite near Hadayang in Molidawa banner in the middle of this structural belt, which will provide evidence for the tectonic evolution of Nenjiang-Heihe structural and Xing'anling Mongolian Orogenic Belt.展开更多
基金supported by the China Geological Survey(grants No. DD20160343-08, DD20160343-09, DD20160048, DD20160048-1, DD20160048-16 and DD20160048-05)
文摘Objective The Nenjiang-Heihe structural belt is located in the eastern Xing'anling Mongolian Orogenic Belt between the Songnen block and Xiang'an block. This structural belt has long been the focus of geological scholars (Miao Laicheng et al., 2003; Liang Chenyue et al., 2011; Li Chao et al., 2017), which has complex geological condition, strong metamorphism and deformation and serious vegetation cover. There is a great dispute about the time limit of collage of the structural belt. In order to solve the problem, this paper reports a newly discovered Devonian orthoclase granite near Hadayang in Molidawa banner in the middle of this structural belt, which will provide evidence for the tectonic evolution of Nenjiang-Heihe structural and Xing'anling Mongolian Orogenic Belt.