临清坳陷东部构造变动特征及控制作用

TECTONIC VARIATION CHARACTERISTICS AND CONTROLLING FUNCTION IN THE EASTERN PART OF THE LINQING DEPRESSION

柳忠泉 邱连贵 周桂芹

LIU Zhong-quan QIU Lian-gui ZHOU Gui-qin

中国地质大学, 研究生院, 北京, 100083 2. 中国石化, 胜利油田有限公司, 地质科学研究院, 山东, 东营, 257015

Graduate School, China University of Geosciences, Beijing 100083, China 2. Institute of Geological Sciences, Shengli Oilfield, SINOPEC, Dongying, Shandong 257015, China

该文应用掀斜变动原理对临清坳陷东部的构造进行了分析,并总结了下第三系盖层层序的基本构造特征和断块掀斜变动对沉积的控制作用。研究表明,掀斜断块是盆地内具有成因意义的最基本结构单元,而掀斜变动控制了盆地的演化并影响到物源区古地貌的发育,对盆地内沉积体系的类型、展布及演化也具有重要的控制作用;临近主控断层的断槽及下斜坡是生油洼陷发育的有利部位,而远离断层的上斜坡和断脊区则是油气运移的主要指向区。

Using the principle of tilt variation, this paper analyzed the structures in the eastern part of the Linqing Depression, and summarized the basic structural characteristics of caprock sequences in the Paleogene and the controlling function of tilt variation to deposit. The research showed that the tilted fault blocks were the primary structure units in the basin and tilt variation not only controlled the evolution of the basin but also affected the development of paleogeomorphology in source areas. In the meantime, they also played an important role in controlling the types, distuibution and evolution of sedimentary systems in the basin. The fault troughs and the down slops close to the master controlling fault are the favorable positions for the development of oil-generating sags, while the up slopes and fault ridge areas far away from the fault are the main direction areas of hydrocarbon migration.

https://doi.org/10.11781/sysydz200401031