The geometric simulation and analysis of the blind growth fold in the overthrust belt of the southern section of the frontier Longmen *** Late Triassic

作     者：CHEN Wei YANG KeMing LI ShuBin JIAN GaoMing TANG Jin ZHAO Yiao SU Qian 

作者机构：Resource and Environment Institute Southwest Petroleum University Chengdu 610500 China The Southwest Branch of SINOPEC Changdu 610016 China 

出 版 物：《Chinese Science Bulletin》 (CHINESE SCIENCE BULLETIN)

年 卷 期：2009年第54卷第8期

页      面：1384-1388页

核心收录：

学科分类：12[管理学] 070903[理学-古生物学与地层学(含：古人类学)] 1201[管理学-管理科学与工程(可授管理学、工学学位)] 0709[理学-地质学] 07[理学] 08[工学] 0802[工学-机械工程] 080201[工学-机械制造及其自动化] 

基　　金：Supported by the Sichuan Provincial Key Construction Projects (Order No.SZD0414) 

主　　题：几何仿真 晚三叠世 边界 褶皱带 结构解释 断层转折褶皱 地震剖面 生长地层 

摘      要：The seismic profiles processed by high-resolution display that a blind growth fault-bend fold emerges in depth of seismic exploration area in Dayi in the southern section of the frontier Longmen *** paper presents a detailed structural interpretation to seismic section,then describes the deformed geometry related to the pre-growth strata,the growth strata and the post-growth strata on both limbs of the *** computer geometric simulation,based on the model of fault-bend fold,is utilized to stimulate the geometry of the blind growth fold at different sedimentation rates in *** structural features are subsequently extracted and compared with the actual seismic reflection *** research suggests that a low angle overthrust formed during Late Triassic also appears in the southern section of the frontier Longmen *** event of structure took place at the depositional stage of a portion of the middle and upper fourth member of Xujiahe Formation(T3x4),which corresponds to thrusting in the northern section of the frontier Longmen ***,the thrusting displacement here is smaller than one of the northern section.