现代地质2011,Vol.25Issue(1):55-61,77,8.
东濮凹陷南部沙三中段构造调节带对沉积体系的控制作用
Accommodation Zones and Their Controls on Depositional System in the Middle of Third Member of Shahejie Formation,South of Dongpu Sag
摘要
Abstract
Dongpu sag is a Cenozoic extend-faulted basin formed by extension contributed by Lanliao fault. Accommodation zones are main types of transfer zones developed in south of Dongpu sag. Based on fault's configuration and displacement, four tendency types and three overlap types are summarized; moreover, eleven types of accommodation zones are confirmed, among which eight are found in south of Dongpu sag. Accommodation zones control the development of depositional systems in south of Dongpu sag: Synthetic accommodation zones formed in west slope can act as a sediment exit of large delta system; Fault-nose in degressive block of Lanliao fault can also play as an exit of relatively small fan delta system; Antithetic accommodation zones in central uplift zone, however, separate secondary catchment basins. The forming dynamics mechanism of accommodation zones is closely correlative with geometry and kinematics of Lanliao fault, whose cross section shape, displacement variation and strike-slip are the domain controlling factors.关键词
东濮凹陷/调节带/沉积体系/成因机制分类
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梁富康,于兴河,慕小水,李胜利,许书堂,刘玮,邹敏..东濮凹陷南部沙三中段构造调节带对沉积体系的控制作用[J].现代地质,2011,25(1):55-61,77,8.基金项目
国家自然科学基金项目(41072084) (41072084)
国家重大专项项目(2008ZX05056-002-02-01). (2008ZX05056-002-02-01)