上海国土资源Issue(4)：68-71,4.DOI:10.3969/j.issn.2095-1329.2012.04.017
渤海湾盆地中央隆起带断裂构造特征及油气成藏作用
Tectonic Characteristics and Hydrocarbon Accumulations in Strike-Slip Faults in the Central Uplift Belt of Bohai Bay Basin
摘要
Abstract
Detailed field research on seismic sections of the central uplift belt of the Huanghekou Sag, Bohai Bay Basin, revealed that faults in the region largely extend in three directions (NE–SW, NEE–SWW, and E–W). The primary faults are strike-slip faults that extend NE–SW. The secondary faults striking NEE–SWW and E–W are derived from strike-slip faults, and show an en-echelon pattern. The primary faults are discontinuous with depth, and the intensity of activity varies along the depth profile. In cross-section, these faults appear as negative flower structures that are typical of strike-slip deformation. The cross-sectional structure indicates that the fault zone was dominated by an extensional regime in the Paleogene, when strike-slip activity was minimal. In the Neogene, right-lateral strike-slip motion gradually increased. Strike-slip motion has reached a peak in the current tectonic period, forming the en-echelon fault sets and building the central uplift belt. The faults of the central uplift belt create short hydrocarbon migration routes from the adjacent rocks, in which hydrocarbons accumulate.关键词
渤海湾盆地/黄河口凹陷/中央隆起带/走滑断裂/油气成藏/地震物探Key words
Bohai bay basin/Huanghekou sag/central uplift belt/strike-slipping faults/hydrocarbon accumulations/seismic prospecting分类
天文与地球科学引用本文复制引用
董足华,张兵,郭涛,刘彬彬,何雁兵..渤海湾盆地中央隆起带断裂构造特征及油气成藏作用[J].上海国土资源,2012,(4):68-71,4.基金项目
国家重大科技专项“黄河口凹陷油气成藏规律及勘探方向研究”(2011ZX05023001012) （2011ZX05023001012）
