兴蒙造山系新元古代-古生代沉积盆地演化  

Neoproterozoic-Paleozoic Sedimentary Basins Evolution of Xing-Meng Orogenic Belt

作　　者：杨文麟[1,2] 骆满生[2] 王成刚 徐增连[1,2] 

机构地区：[1]中国地质大学地球科学学院,湖北武汉430074 [2]中国地质大学生物地质与环境地质国家重点实验室,湖北武汉430074 [3]武汉地质矿产研究所,湖北武汉430223

出　　处：《地球科学（中国地质大学学报）》2014年第8期1155-1168,共14页Earth Science-Journal of China University of Geosciences

基　　金：中国地质调查局项目(Nos.1212011121261;12120113012500)

摘　　要：在系统分析兴蒙造山系新元古代-古生代24个沉积盆地类型、沉积建造、生物地层与年代地层等特征的基础上,划分了6个沉积大地构造演化阶段并对其进行讨论:(1)新元古代-寒武纪早期陆缘增生阶段:额尔古纳地块向南增生并与兴安地块拼贴,形成环宇-新林蛇绿岩拼合带;(2)寒武纪纽芬兰世-第二世陆缘稳定沉积阶段:各地块边缘发育相对稳定的碎屑岩-碳酸盐岩沉积,佳木斯地块受晚泛非造山作用影响;(3)早-中奥陶世多岛弧盆系形成阶段:多宝山地区弧盆系发育,其他地块边缘均有不同强度陆间洋壳俯冲作用;(4)晚奥陶世-志留纪普里道利世多岛弧盆系发展阶段:各地块隆升遭受剥蚀;(5)早泥盆世-早石炭世多岛弧盆系消减阶段:早石炭世晚期额尔古纳-兴安地块与松嫩地块拼贴,佳木斯西缘由被动陆缘转为活动陆缘;(6)晚石炭世-二叠纪乐平世拼合后洋-陆转化阶段:从早石炭世晚期开始至二叠纪末,佳木斯地块分别与松嫩地块、兴凯地块拼贴,至此东北各地块拼贴完成.Based on comprehensive analysis of the type,sedimentary formation,biostratigraphy and chronostratigraphy for 24 main sedimentary basins,we study the evolution of sedimentary basins of Xing-Meng orogenic belt in the Neoproterozoic-Paleo-zoic,dividing it into six phases as follows.（1）The epicontinental accretion in the Neoproterozoic to Early Cambrian character-ized by the assembly of Ergun and Xing＇an blocks,as Huanyu-Xinlin ophiolite accreted to margin of southern Ergun blocks;（2）The stable epicontinental sediment in the Terreneuvian-Serises 2,with the feature of a relatively stable clastic-calciclastic sediment around the blocks while Jiamusi massif affected by Late Pan-African metamorphic event;（3）The formation of archi-pelagic arc-basin systems in the Early and Middle Ordovician,marked by the distribution of arc-basin in the margin of Duobaoshan and the different levels oceanic crust subduction effect among other land masses;（4）The development of archipe-lagic arc-basin systems in the Late Ordovician to Pridoli,as the erosion of the uplifted land masses;（5）The subduction of ar-chipelagic arc-basin systems in the Early Devonian to Early Carboniferous,characterized by the collage of Ergun-Xing＇an and Songnen blocks and the transformation of western margin of Jiamusi massif from passive to active in the late Early Carbonifer-ous;（6）The oceanic-continental transition in the Late Carboniferous-Lopingian,characterized by the assembly of Jiamusi mas-sif,Songnen massif,and Khanka massif.Massifs of Northeast China completely collaged to a whole.

关 键 词：沉积 构造 盆地演化 兴蒙造山系 新元古代-古生代 

分 类 号：P534[天文地球—古生物学与地层学] P542[天文地球—地质学]