“雪峰古陆”加里东期的构造性质和构造演化  

TECTONIC NATURE AND TECTONIC EVOLUTION OF THE "XUEFENG OLDLAND"IN THE CALEDONIAN STAGE

作　　者：丘元禧[1] 马文璞[1] 范小林 张渝昌 邓家瑞[1] 夏亮辉[1] 张旭亮[1] 

机构地区：[1]中山大学,中国地质大学,地矿部石油地质实验室,华东地质学院

出　　处：《中国区域地质》1996年第2期150-160,共11页Regional Geology of China

基　　金：国家自然科学基金

摘　　要：“雪峰古陆”的构造问题是华南区域构造研究中的一个热点。震旦纪至早古生代时期为扬子古陆的东南被动大陆边缘的一部分，发育了以斜坡相为主体的沉积组合；加里东造山作用时期，这里成为扬子古陆的边缘褶断山系，但仍为扬子地块的一部分而非习称的华南加里东褶皱带；它是由于华南加里东武夷─云开弧后盆地关闭，扬子地块与华夏地块拼接形成的陆孤碰撞造山带的一个组成部分。其主要构造样式为前陆地带的准原地型边冲叠瓦推覆构造。The tectonics problem of the 'Xuefeng oldland' is a focus in the regional tectonic study of South China.In the Sinian to Early Paleozoic,the oldland was a part of the southeastern passive continental margin of the Yangtze oldland,where the sediment association consisting mainly of slope factes was deposited. In the Caledonian,it became a marginal fold-fault mountain system of the Yangtze oldland but still remained as a part of the Yangtze block rather than the conventionally called South China Caledonian fold belt. This oldland was formed as a result of closure of the Caledonian Wuyi-Yunkai backarc basin of South China,assembling of the Yangtze block and the Cathaysian block and continent-arc collision orogeny and was a constituent part of the South China Caledonian continent-arc collision orogenic belt. Its main tectonic style is parautochthonous thrust-imbrication nappe structure of the foreland belt.

关 键 词：雪峰山 古陆 加里东期 构造性质 构造演化 

分 类 号：P547[天文地球—构造地质学]