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胶辽地块古元古代大地构造问题:历史观与活动论
引用本文:李三忠.胶辽地块古元古代大地构造问题:历史观与活动论[J].西北地质,1997,18(3):27-35.
作者姓名:李三忠
作者单位:西北大学!西安,710069
摘    要:对胶辽地块内古元古代活动带的大地构造属性及原始构造线方位、古地理位置,一直存有争议。本文运用历史分析法和活动论的观点,根据大量地质记录提出该活动带经历了裂陷、被动大陆边缘至活动大陆边缘,最后碰撞造山的完整过程,故认为其大地构造属性为一古造山带;通过消除中新生代郯庐断裂左行错移等后期地质事件的影响,可以认为该古造山带的原始构造线方位应为EW走向,其古地理位置应与现今华北地块南缘对比。

关 键 词:胶辽地块  古元古代  辽河群  裂谷  造山带

PALAEOPROTEROZOIC GEOTECTONIC PROBLEMS OF THE JIAO-LIAO MASSIF:EVOLUTIONISM AND MOBILISM
Li Sanzhong.PALAEOPROTEROZOIC GEOTECTONIC PROBLEMS OF THE JIAO-LIAO MASSIF:EVOLUTIONISM AND MOBILISM[J].Northwestern Geology,1997,18(3):27-35.
Authors:Li Sanzhong
Abstract:Some controversial problems on Palaeoproterozoic active belt in the Jiao--LiaoMassif include geotectonic attribute, primary orientation of structural lines and palaeogeographicposition of the active belt. Evolutionism and mobilism are employed here. Based on many geological records, the active belt is suggested to be a palaeo--orogen which underwent the followingprocesses from rifting, formations of passive and active continental margins, to collision. Bymeans of eliminating influences of subsequent geological events such as Ceno--Mesozoic sinistralTan--Lu fault, the primary strike of structural lines of the active belt was EW, and palaeogeographic site of the active belt could be compared with that of the present south margin of NorthChina Massif.
Keywords:Jiao-Liao massif Palaeoproterozoic Liaohe Group rift orogen
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