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基金项目:
杜菊民  张庆龙  杜松金  李洪喜  赵世龙  解国爱
[1]南京大学地球科学系,江苏南京210093 [2]山东正元资源勘查研究院,山东济南250014 [3]核工业部208地质大队,内蒙古包头014010
摘要:
      内蒙古大青山地区侏罗纪盆地中发育有断层相关褶皱,有十分清晰的断层传播褶皱,断层转折褶皱等构造样式。断层相关褶皱轴向呈东西向展布,形成褶皱的地层是早侏罗世右拐群煤系地层,表明该褶皱至少在煤层形成后,受南北向挤压应力作用形成。研究这一构造样式,对这一地区的推覆构造、盆山耦合研究具有重要地质意义。
关键词:断层相关褶皱 推覆构造 盆地 侏罗纪 内蒙古大青山
Abstract:
      Widely distributed in Daqingshan area,Inner Mogolia,nappe structre and extensional structure constitute the west section of Yansan mid plate orogenic belt,an important formation part in Yinshan Mountain.Those fault related folds are distrbuted including faulted propagated fold and faulted hinged fold are distributed in Jurassic basin of Daqingshan Mountain.The fault related folds with a axial direction of east west form fold strata of coal measures strata in Lower Jurassic Shiguai Formation.The folds are formed at least by stress of compression at south north direction after formation of the coal seam.The research on the structural style is of important significance for the nappe structure,coupled basin range and coalfield exploration in the area.
Keywords:Fault related fold,Nappe structure,Basin,Jurassic period,Daqingshan,Inner Mongolia
杜菊民,张庆龙,杜松金,李洪喜,赵世龙,解国爱.内蒙古大青山地区构造新样式初探[J].地质学刊,2004,28(2):65-68