Syndepositional Fault Controlling on Depositional Filling of the Third Member of Shahejie Formation in Beitang Sag

• Published in: Journal of earth science (Wuhan, China) Vol. 20; no. 6; pp. 949 - 958
• Main Author: 黄传炎 王华 肖敦清 陈思 王家豪 廖远涛
• Format: Journal Article
• Language: English
• Published: China University of Geosciences (Wuhan) China University of Geosciences (Wuhan) 01.12.2009; Springer Nature B.V
• Subjects: Biogeosciences; Earth and Environmental Science; Earth science; Earth Sciences; Geochemistry; Geology; Geophysics; Geotechnical Engineering & Applied Earth Sciences; Lake basins; Plate tectonics; Seismology; Spatial analysis; Spatial distribution; Terraces; 北塘凹陷; 同沉积断裂; 控制序列; 故障模式; 断裂系统; 沉积充填; 沙河街组; 空间分布格局; the third member of Shahejie Formation; Beitang sag; syndepositional fault; structural slope break zone
• ISSN: 1674-487X; 1867-111X
• DOI: 10.1007/s12583-009-0080-6

In the continental lake basin whose structures were extraordinarily active, tectonism is an important factor in controlling the sequence and the depositional filling of the basin. This article reports the assemble patterns of syndepositional fault in the third member of Shahejie （沙河街） Formation in Beitang （北塘） sag. The results show that the comb-shape fracture system and the fracture transformation zone were developed in Beitang sag. These assemble patterns obviously controlled the sand-body and spatial distribution of sedimentary system. However, the steep slope belt of fault terrace, the multistage slope belt and the low uplift gentle slope belt controlled the development of sequence styles. Analyses of the spatial-temporal relationship of the assemble pattern of syndepositional faults and the sedimentary system help predict the favorable exploration zone.