【摘要】 辽宁北部建平-阜新-铁岭地区,存在一套中新元古代构造混杂岩系、蛇绿混杂岩.其原岩岩石类型有火山岩,陆缘碎屑沉积岩,火山、岛弧拉斑系列或钙碱系列火山岩、蛇绿岩等.它们紧密共生,呈狭长的带状分布于辽宁北部晚前寒武纪造山带内.可划分为魏家沟岩群和开原岩群(包括沈家堡子岩组、照北山岩组、板石沟岩组).更多还原

【Abstract】 There exists a series of Meso-Neoproterozoic tectonic melanges and o phiolitic melanges in Jianping-Fuxin-Tieling area of northern Liaoning Provinc e. Their original rocks are volcanic rocks,epicontinental clastic sedimentary ro cks, and ophiolite of volcanic and island arc tholeiitic series or calcium alkal i series. The rocks coexist closely, distributing in a narrow and long belt in t he Late Precambrian orogenic belt in northern Liaoning. The rock series could be subdivided into Weijiagou rock group and Kaiyuan rock group (including Shenjiap uzi rock formation, Zhaobeishan rock formation and Banshigou rock formation).更多还原