埕岛—桩海地区构造样式
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摘要
埕岛—桩海地区发育的构造样式划分为5种:逆冲推覆、伸展、走滑、反转和重力滑脱。其特征及形成背景表明,逆冲推覆构造主要产生于印支运动时期和燕山运动晚期;伸展构造样式最常见,在中、新生代极为发育;走滑构造发育于燕山左行走滑及喜山右行扭张时期;反转构造主要受古生代—早中生代逆断、中—新生代拉张影响;重力滑脱构造主要发育在古生界与太古界之间。
The structural style developed in the Chengdao-Zhuanhai area is divided into five styles: they are the thrust nappe structure, the extensional structure, the strike-slip structure, the inversional structure and the gravity decollement structure. The analysis of their characteristics and formation background shows that the thrust nappe structure mainly occurred during the Indosinian movement and the Late Yanshanian movement. The extensional structure are most common and developed very well in Mesozoic and Cenozoic.The strike-slip structure is developed in the periods of the left strike-slip of the Yanshan movement and the right transtension of the Himalayas movement. The inversional structures are mainly influenced by reverse faults developed in the Paleozoic-Early Mesozoic and the extension developed in the Meso-Cenozoic. The gravity decollement structures are mainly developed between the Paleozoic and the Taigu.
The structural style developed in the Chengdao-Zhuanhai area is divided into five styles: they are the thrust nappe structure, the extensional structure, the strike-slip structure, the inversional structure and the gravity decollement structure. The analysis of their characteristics and formation background shows that the thrust nappe structure mainly occurred during the Indosinian movement and the Late Yanshanian movement. The extensional structure are most common and developed very well in Mesozoic and Cenozoic.The strike-slip structure is developed in the periods of the left strike-slip of the Yanshan movement and the right transtension of the Himalayas movement. The inversional structures are mainly influenced by reverse faults developed in the Paleozoic-Early Mesozoic and the extension developed in the Meso-Cenozoic. The gravity decollement structures are mainly developed between the Paleozoic and the Taigu.
引文
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[2]汤良杰,贾承造,皮学军等.库车前陆褶皱带盐相关构造样式[J].中国科学:D辑,2003,33(1):38-46.
[3]戴俊生,陆克政.渤海湾盆地早第三纪构造样式的演化[J].石油学报,1998,19(4):16-20.
[4]漆家福,陈发景.辽东湾—下辽河裂陷盆地的构造样式[J].石油与天然气地质,1992,13(3):272-283.
[5]刘和甫.沉积盆地地球动力学分类及构造样式分析[J].地球科学(中国地质大学学报),1993,18(6):699-724.
[6]漆家福,陈发景.辽东湾—下辽河裂陷盆地的构造样式[J].石油与天然气地质,1992,13(3):272-283.
[7]徐长贵,于水,林畅松等.渤海海域古近系湖盆边缘构造样式及其对沉积层序的控制作用[J].古地理学报,2008,10(6):627-635.