文中着重讨论了勒巴泉—公婆泉陆缘弧的基本特征及形成的动力学背景。认为 ,加里东晚期弧后扩张、俯冲形成勒巴泉—公婆泉陆缘弧 ,红柳河弧后盆地的扩张与俯冲是形成勒巴泉—公婆泉陆缘弧的关键 ;陆缘弧区地层主要由公婆泉群 (SG)组成 ,由一系列链状火山岛屿和其间的火山洼地构成 ,属海潮间—潮下高能地带 ,生物发育 ,火山活动异常强烈时期形成窑洞努如和公婆泉两个火山穹隆构造 ;主要岩石类型为爆发相、钙碱性系列的中酸性火山岩。该陆缘弧不仅发育火山作用 ,同时也形成浸染状硫化物型铜成矿系统 The paper mainly discusses the basic characteristics and dynamic background of the Lebaquan-Gongbaoquan continental margin arc. It is believed that the expansion and subduction of the Hongliuhe backarc basin are the key to the formation of the Lebaquan-Gongbaoquan land-edge arc in the later Caledonian arcs after the arc expansion and subduction. (SG), is composed of a series of chain volcanic islands and volcanic depressions in between. It belongs to the sea-tide-high-energy zone of the tidal flats. During the period of bio-development and volcanic activity, two volcanoes Dome structure; the main type of rock is eruption phase, calc-alkaline series of acidic volcanic rocks. The continental margin arc not only develops volcanism, but also forms disseminated sulfide type copper mineralization system