摘要
据近十年来１：５万区域地质调查及有关科研成果资料，应用板块构造理论对辽宁境内板块构造进行了轮廓性的讨论．划分出天山－赤峰陆缘活动带和华北陆块两个二级构造单元；辽东地块、辽西地块、泛河微地块、浑河构造接合带、下辽河裂陷带等五个三级单元及清原绿岩带、辽吉夭折裂谷带两个可能存在的四级单元．文中提出了浑河构造接合带形成于中生代初，太平洋板块开始向东亚大陆俯冲和下辽河裂陷带属于新生代板内大陆裂谷系，且该裂谷系至今仍在活动中等认识．
According to regional geologic survey with 1:50000 and related achievements in scientific researchin recent years. the plate tectonic within the boundaries of Liaoning province has been discussed in outline by meansof plate theory in this paper. Tianshan-Chifeng continental border active belt and North China block are divided assecond order tectonic unit. Five structural units are east Liaoning block, west Liaoning one,Fanhe microblock,Hunhe structural joint belt and Lower Liaohe rift valley. Qingyuan green rock belt and Liaoji graben to die youngare structural element which exists possibly.It has been presented in this paper that some hypotheses. for example. Hunhe structural joint belt was formedin early Mesozoic when Pacific plate began under thrust in east Asian, Lower Liaohe rift valley belongs tocontinental intraplate graben in the Cenozoic Era.
出处
《东北地震研究》
1999年第1期29-36,共8页
Seismological Research of Northeast China
关键词
板块构造
构造接合带
大陆裂谷
大地构造轮廓
Plate tectonic
Structural joint belt
Rift valley belt
Continental rift valley
