海相油气地质2017，Vol.22Issue(4)：53-60,8.DOI:10.3969/j.issn.1672-9854.2017.04.007
尼日尔三角洲盆地泥收缩构造发育特征及对沉积的控制
Contractional Structure in Muds:Pattern, Evolution, and the Control on the Deposition of Niger Delta Basin
摘要
Abstract
The contractional structure in muds, which is a typical tectonic pattern of the gravitational decollment thrust structure in the deepwater area of Niger Delta Basin, is mainly composed of thrust faults, plastic mud structures and associated folds and normal faults. Based on the interpretation of seismic data, it is considered that the contractional structure is mainly controlled by plastic mud structure. On the tectonic history, the contractional structure began to form in the late Tortonian of the Miocene, and in the Messianian-Zanclean reached the strongest, then the tectonic activity gradually weakened, but still active. Based on the analysis of paleo-structure restoration and sedimentary system, it is believed that the late Tertonian tectonic activity begin to control the sediments. The upper part of the Tertonian and its overlying strata are of obvious syn-deposition. As to the thrust fault, the thickness of hanging wall is clearly smaller than that of footwall, and as to the associated fold, the thickness of the strata of wings is larger than that of the top of anticline.关键词
尼日尔三角洲盆地/泥收缩构造/构造特征/构造演化Key words
Contractional structure in muds/Structural feature/Structural evolution/Niger Delta Basin分类
能源科技引用本文复制引用
于水,李涛,胡望水,成瀚,赵红岩..尼日尔三角洲盆地泥收缩构造发育特征及对沉积的控制[J].海相油气地质,2017,22(4):53-60,8.基金项目
本文受国家科技重大专项"非洲、中东重点勘探区油气地质评价及关键技术研究"(2011ZX05030-003)资助 （2011ZX05030-003）
