DEFORMATIONAL CHARACTERISTICS, EVOLUTIONARY HISTORY, AND DEFORMATION MECHANISM OF THE MIDDLE LONGMENSHAN THRUST-NAPPES AND RELATED TECTONICS

SEISMOLOGY AND GEOLOGY ›› 1994, Vol. 16 ›› Issue (4): 413-421.

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DEFORMATIONAL CHARACTERISTICS, EVOLUTIONARY HISTORY, AND DEFORMATION MECHANISM OF THE MIDDLE LONGMENSHAN THRUST-NAPPES AND RELATED TECTONICS

Chen Shefa¹, Deng Qidong², Zhao Xiaolin², C. J. L. Wlison P. Dirks³, Luo Zhili⁴, Liu Shugen⁴

1. China University of Geosciences(Wuhan), Wuhan 430074;
2. Institute of Geology, Beijing 100029;
3. University of Melbourne, Parkville, Vic. 3052, Australia;
4. Chengdu College of Geology, Chengdu 610059

Received:1994-02-01 Revised:1994-09-01 Online:1994-12-07 Published:2009-11-25

龙门山中段推覆构造带及相关构造的演化历史和变形机制(二)

陈社发¹, 邓起东², 赵小麟², C. J. L. Wilson P. Dirks³, 罗志立⁴, 刘树根⁴

1. 中国地质大学(武汉), 武汉 430074;
2. 国家地震局地质研究所, 北京 100029;
3. 墨尔本大学, Parkville, Vic. 3052, 澳大利亚;
4. 成都地质学院, 成都 610059

基金资助:
地展科学联合基金资助((91048),并吸收了中澳合作的部分成果

Abstract

Abstract: The western Sichuan foreland basin initiated in T₃³ by continuous compression of the Long-menshan thrust-nappe belt,and its depositional centers were gradually transposed from NW to SE. The evolutionary history of the middle Longmenshan thrust-nappe belt and associated tectonics can be divided into three major stages:taphrogenic stage (D～T₃²),tectonic inversion stage (T₃³),and continuous thrusting stage (J～Kz).

Key words: Longmenshan, Thrust-nappe belt, Foreland basin, Evolutionary history, Deformation michanism

摘要： 川西前陆盆地是从晚三叠世晚期(须家河期)以来开始发育的,其形成是龙门山推覆构造带自北西往南东持续推覆的结果。本区的构造发展经历了伸展裂陷、构造反转和持续推覆3个主要阶段。构造变形的力源主要来自松潘-甘孜褶皱带的北东～南西向收缩派生的南东向挤压。

关键词: 龙门山, 推覆构造带, 前陆盆地, 构造演化, 构造变形机制

Chen Shefa, Deng Qidong, Zhao Xiaolin, C. J. L. Wlison P. Dirks, Luo Zhili, Liu Shugen. DEFORMATIONAL CHARACTERISTICS, EVOLUTIONARY HISTORY, AND DEFORMATION MECHANISM OF THE MIDDLE LONGMENSHAN THRUST-NAPPES AND RELATED TECTONICS[J]. SEISMOLOGY AND GEOLOGY, 1994, 16(4): 413-421.

陈社发, 邓起东, 赵小麟, C. J. L. Wilson P. Dirks, 罗志立, 刘树根. 龙门山中段推覆构造带及相关构造的演化历史和变形机制(二)[J]. 地震地质, 1994, 16(4): 413-421.

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DEFORMATIONAL CHARACTERISTICS, EVOLUTIONARY HISTORY, AND DEFORMATION MECHANISM OF THE MIDDLE LONGMENSHAN THRUST-NAPPES AND RELATED TECTONICS

龙门山中段推覆构造带及相关构造的演化历史和变形机制(二)

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