地质科学2012，Vol.47Issue(3)：762-775,14.
渤海湾盆地黄骅坳陷新生代沉降特征
Tectonic subsidence characteristics of Huanghua depression in Bohai Bay Basin in Cenozoic
摘要
Abstract
The history of Huanghua depression subsidence was analyzed by explained the structural characteristics of 22 seismic profiles of Huanghua depression in Bohai Bay Basin. Based on the subsidence history of nine main sags in the Huanghua depression, it could be found that the tectonic subsidence of Huanghua depression had an obviously space-time discrepancy among the Cenozoic. The results show that the Huanghua depression underwent the episodic subsidence in the time, including the rifting episodic I is the sedimentary period of the Kongdian Formation, the rifting episodic Ⅱ is the sedimentary period of the 3th member of the Shahejie Formation, the rifting episodic ID are the sedimentary period of the 1 st and 2nd member of the Shahejie Formation and the Dongying Formation, thermal subsidence episodic are the sedimentary period of the Guangtao Formation and the lower submember of the Minghuazhen Formation,accelerated thermal subsidence episodic are the sedimentary period of the upper submember of the Minghuazhen Formation and the Quaternary. The Huahuang depression subsidence center migrated regularly in the space which was interpreted through the analysis of sags of the burial history curve, subsidence curve, subsidence features of basement and the migration of the subsidence center. The result of subsidence comparison and analysis indicates that that the subsidence center migrated from the south to the north, from the west to the east, finally, reached the largest subsidence center nowadays-the Qikou sag.关键词
渤海湾盆地/黄骅坳陷/构造沉降/时空差异性Key words
The Bohai Bay Basin/ Huanghua depression/ Tectonic subsidence/ Space- time discrepancy分类
天文与地球科学引用本文复制引用
董敏,漆家福,杨桥..渤海湾盆地黄骅坳陷新生代沉降特征[J].地质科学,2012,47(3):762-775,14.基金项目
国家自然科学基金重点项目(编号:90914006)资助. （编号:90914006）
