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大兴安岭增生造山带地处古生代近东西向的中亚蒙古造山带和中生代北北东向的滨太平洋造山带的叠加复合部位,集中保存了大量与两次造山事件有关的构造和岩浆岩记录,是研究中亚蒙古造山带东段的造山过程、演化及后期造山作用叠加、复合和改造的理想地区~([1])。前人对研究区及邻区是否发育晚石炭纪—二叠纪岛弧型岩浆岩进行了大量的研究表1,这些岩浆岩的侵位时代主要为330~265Ma左右,但由于地质露头整体出露条件的限制,对
The Greater Hinggan Mountains Progradation orogenic belt is located in the superimposed composite parts of the Mesozoic Central Asian Mongolia orogenic belt in the Paleozoic east-west direction and the Mesozoic north-easterly orogenic belt in the north-east direction, and a large number of tectonic and magmatic rocks records related to two orogenic events are concentratedly preserved To study the orogenic process, evolution and post-orogenic superimposition, compounding and rebuilding of the eastern part of the Central Asian Mongolia Orogenic Belt ~ ([1]). The predecessors conducted a large number of studies on the development of Late Carboniferous-Permian island arc type magmatic rocks in the study area and its adjacent areas. Table 1 The emplacement age of these magmatic rocks is mainly about 330-265 Ma. However, due to the outcrop of geological outcrop Dew conditions, right