济阳坳陷古近系同沉积背斜构造及其与油气的关系  

STUDY ON PALAEOGENE SYNDEPOSITION AND ITS RELATION WITH HYDROCARBON POTENTIALS IN JIYANG SAG

作　　者：钟延秋[1] 李勇[2] 郭洪金[3] 钟建华[2] 

机构地区：[1]中国地质大学能源学院,北京100083 [2]中国科学院广州地球化学研究所 [3]浙江大学地球科学系,浙江杭州310027

出　　处：《大地构造与成矿学》2006年第1期28-40,共13页Geotectonica et Metallogenia

基　　金：国家自然科学基金项目(40172073);高校博士点基金项目(20010425004);山东省自然科学基金项目(Q99E01)联合资助.

摘　　要：济阳坳陷由于受到多期构造运动的影响,在前第三系古地形高点背景上广泛发育同沉积背斜构造,然而由于坳陷在断陷期基底滚动式沉降,造成挠曲顶部的塌陷,形成复杂的块断结构,使本区同沉积构造发生强烈改造,往往与各次级断层或沉积地层相复合,表现出独特的构造景观。济阳坳陷发育的同沉积背斜构造可分为同沉积背斜和同沉积鼻状构造,它们在形成和发展中,重力起主导作用,滑塌是主要形式。在与油气成藏关系上,济阳坳陷同沉积背斜构造的形成与发展,对于油气的生成、运移、聚集、储集、保存等都有着至关重要的作用。Due to the multi-period tectonic movement and evolution of mechanical mechanism, syndeposition structures occur extensively in Jiyang Sag, the base of the sag subsided alternatively during the fault depression, which resulted in sinking of top bending and complicated block structure accordingly, reconstructed the syndeposition intensively, and produced the special structural landscape in combination with all levels of faults and sedimentary formations within it. Syndeposition developed in Jiyang Sag can be classified, mainly based on gravity and the form of sinking, into syndeposit-anticline and syndeposit-nosing structure during the formation and development period. By taking into account of the reservoir formation, syndeposition on the one hand can play the transportation role in migrating the source rock, and on the other hand lead to favorable matching relations among source rock, reservoir rock and cap strata.

关 键 词：同沉积构造 济阳坳陷 背斜 鼻状构造 油气 

分 类 号：TE121[石油与天然气工程—油气勘探] P542[天文地球—构造地质学]