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湘中地区穹盆构造:褶皱叠加期次和成因
引用本文:王建,李三忠,金宠,王岳军,张国伟,刘丽萍,刘鑫.湘中地区穹盆构造:褶皱叠加期次和成因[J].大地构造与成矿学,2010,34(2).
作者姓名:王建  李三忠  金宠  王岳军  张国伟  刘丽萍  刘鑫
作者单位:中国海洋大学,海洋地球科学学院,海底科学与探测技术教育部重点实验室,山东,青岛,266100;中国科学院,广州地球化学研究所,广东,广州,510640;西北大学,地质学系,陕西,西安,710069
基金项目:中国石化总公司重大科技攻关项目 
摘    要:研究认为湘中地区存在三套不整合面,划分了四个构造变形期次:加里东期、印支早期、印支晚期和燕山期,并对各个构造期次的变形特征作了详细的论述。加里东期与印支早期分别为近东西向的褶皱,印支晚期为一近似平行于祁阳弧断裂的弧形构造,燕山期则以北东—北北东向的左旋走滑为主。通过分析各构造期次的复合叠加特征,本文提出:湘中地区的穹盆构造是由于加里东期褶皱与印支期褶皱叠加而形成的,并在燕山期时受到北东—北北东向的左旋走滑断层的改造。

关 键 词:穹盆构造  褶皱叠加  加里东期  印支期  燕山期

Dome-and-Basin Pattern in Central Hunan Province: Stages and Genesis of Fold Superposition
WANG Jian,LI Sanzhong,JIN Chong,WANG Yuejun,ZHANG Guowei,LIU Liping,LIU Xin.Dome-and-Basin Pattern in Central Hunan Province: Stages and Genesis of Fold Superposition[J].Geotectonica et Metallogenia,2010,34(2).
Authors:WANG Jian  LI Sanzhong  JIN Chong  WANG Yuejun  ZHANG Guowei  LIU Liping  LIU Xin
Institution:WANG Jian1,LI Sanzhong1,JIN Chong1,WANG Yuejun2,ZHANG Guowei3,LIU Liping1 and LIU Xin1(1.MOE Key Lab of Submarine Geosciences and Prospecting Technique / College of Marine Geoscience,Ocean University of China,Qindao 266100,Shandong,China,2.Guangzhou Institute of Geochemistry,Chinese Academy of Sciences,Guangzhou 510640,Guangdong,3.Department of Geology,Northwest University,Xi'an 710069,Shaanxi,China)
Abstract:There are three groups of angular unconformities in central Hunan Province. They are unconformities between Devonian and Carboniferous strata with underlying Lower Paleozoic,between Upper Triassic-Lower Jurassic strata with underlying strata,and between Cretaceous strata with underlying strata,respectively. Similarly the deformation is divided into three stages:Caledonian,Early Indosinian,Late Indosinian and Yanshanian,producing four structural levels. Each structural level has distinct characteristics. Cal...
Keywords:structural type of dome-and-basin  fold superposition  Caledonian  Indosinian  Yanshanian  central Hunan  
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