摘要
南江地区可划分为3个构造层、4个构造带,不同构造带构造样式有所不同。剖面上可划分为叠瓦扇、逆冲三角带、断展褶皱等几何样式;平面上具有斜列(雁行)、斜接、平行、正交4种组合样式。构造演化表明,该区加里东运动早期已具潜伏隆起雏形,在中三叠世之前保持稳定的构造形态;晚三叠世至今,随挤压作用的增强,隆起形态逐渐明显;在晚燕山—喜马拉雅运动中最终形成了北部叠瓦冲断带、南部滑脱褶皱带的构造体系。
Nanjiang area can be divided into three structural layers and four structural belts, the different structuralbelt has different structural styles. It contains the styles of imbricate fan, thrust triangle zone structure andfault-propagation fold in vertical, and the styles of diagonal, juxtaposed, parallel and orthogonal combination inhorizontal direction. The structural evolution shows that the embryonic uplift was formed in the early of Caledonianmovement and the structural shape was kept until the middle of Triassic. With the increase of compression deformationfrom the late of Triassic to today, the uplift was upheaved gradually, and it eventually formed the tectonicsystem which contained imbricate thrust belts in the north and detachment fold belts in the south in the late ofYanshan-Himalayan movement.
作者
韩波
高林
钟箐华
任瑞军
李艳菊
石秀
HAN Bo;GAO Lin;ZHONG Jing-hua;REN Rui-jun;LI Yan-ju;SHI Xiu(Geophysical Research Institute of Shengli Oilfield Branch Co., Dongying, Shandong, 257022, China;Exploration Branch Co., SINOPEC, Chengdu Sichuan 610041, China)
出处
《油气地球物理》
2016年第3期25-28,35,共5页
Petroleum Geophysics
关键词
构造样式
构造演化
南江地区
structural style, structural evolution and Nanjiang area
