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龙门山中段川西前陆盆地初始盆山边界及其变迁
引用本文:王国芝,刘树根,赵锡奎.龙门山中段川西前陆盆地初始盆山边界及其变迁[J].成都理工大学学报(自然科学版),2008,35(4).
作者姓名:王国芝  刘树根  赵锡奎
作者单位:1. 成都理工大学地球科学学院,成都,610059
2. 成都理工大学"油气藏地质及开发工程"国家重点实验室,成都,610059
摘    要:通过对龙门山中段造山带、前陆盆地、飞来蜂的构造变形和构造演化研究,结合前陆盆地物源分析.确定了盆山转换时期川西前陆盆地初始盆山边界,重塑了盆山边界的变迁过程.研究表明,盆山转换初期川西前陆盆地盆山初始边界断裂为茂汶断裂,现今分布于冲断带内的飞来蜂均来自于茂县-汶川断裂与北川-映秀断裂之间的区域.印支-燕山期造山带向南东挤出,使位于茂县-汶川断裂带与映秀-北川断裂带问的地层发生交形和冲断隆升,形成北东向构造.作为前陆盆地基底的海相碳酸盐岩地层逐渐被抬升剥露,成为飞来蜂的源.随着造山带不断地冲断隆升,前陆冲断带向南东扩展,盆山边界由初始的茂县-汶川断裂依次向南东迁移至北川-映秀断裂、彭-灌断裂和关口-彰明断裂以东.

关 键 词:龙门山  造山带  前陆盆地  盆山边界  龙门山中段  川西前陆盆地  盆山转换  边界断裂  变迁过程  central  migration  orogenic  belt  foreland  basin  West  Sichuan  boundary  迁移  扩展  前陆冲断带  抬升剥露  海相碳酸盐岩地层  盆地基底  北东向构造  隆升  发生

The preliminary boundary of the West Sichuan foreland basin and orogenic belt and its migration in the central Longmen Mountains,Sichuan,China
WANG Guo-zhi,LIU Shu-gen,ZHAO Xi-kui.The preliminary boundary of the West Sichuan foreland basin and orogenic belt and its migration in the central Longmen Mountains,Sichuan,China[J].Journal of Chengdu University of Technology: Sci & Technol Ed,2008,35(4).
Authors:WANG Guo-zhi  LIU Shu-gen  ZHAO Xi-kui
Institution:WANG Guo-zhi1,LIU Shu-gen2,ZHAO Xi-kui21.College of Earth Sciences,Chengdu University of Technology,Chengdu 610059,China,2.State Key Laboratory of Oil , Gas Reservoir Geology , Exploitation
Abstract:Through comprehensive studies of the tectonic deformation and development of the orogenic belt,foreland basin,klippe and combined with the provenance analysis of the foreland basin,the preliminary boundary is determined and the migration process of the West Sichuan foreland basin is reconstructed.The research indicates that the preliminary boundary fault between the West Sichuan foreland basin and the orogenic belt is Maowen fault,and the klippes distributed over the thrust zone in the foreland basin were f...
Keywords:Longmen Mountains  orogenic belt  West Sichuan foreland basin  boundary  foreland basin  
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